7460 - PLANS -US 380 Transmission MainDN:CK:DW:CK:FILE:
JOB
COUNTY
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REVISIONS
TxDOT TxDOT TxDOT TxDOT
HIGHWAY
SHEET NO.
C TxDOTof this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER:CONTNovember 2002 FILE:DATE: 95
SHEET 1 OF 12
AND REQUIREMENTS
GENERAL NOTES
BARRICADE AND CONSTRUCTION
4-03
9-07
5-10
7-13
Standard
Division
Operations
Traffic
BC(1)-14
8-14
bc-14.dgn
http://www.txdot.gov
THE DOCUMENTS BELOW CAN BE FOUND ON-LINE AT
COMPLIANT WORK ZONE TRAFFIC CONTROL DEVICES LIST (CWZTCD)
TEXAS MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (TMUTCD)
STANDARD HIGHWAY SIGN DESIGNS FOR TEXAS (SHSD)
TRAFFIC ENGINEERING STANDARD SHEETS
MATERIAL PRODUCER LIST (MPL)
ROADWAY DESIGN MANUAL - SEE "MANUALS (ONLINE MANUALS)"
DEPARTMENTAL MATERIAL SPECIFICATIONS (DMS)
Phone (512) 416-3118
Traffic Operations Division - TE
Texas Department of Transportation
below or by contacting:
and their sources and may be found on-line at the web address given
Traffic Control Devices List" (CWZTCD) describes pre-qualified products
Only pre-qualified products shall be used. The "Compliant Work Zone
BARRICADE AND CONSTRUCTION (BC) STANDARD SHEETS GENERAL NOTES:
or as approved by the Engineer.
right-of-way line as possible, or located behind a barrier or guardrail,
must be parked away from travel lanes. They should be as close to the
13. Inactive equipment and work vehicles, including workers' private vehicles
devices.
12. The Engineer has the final decision on the location of all traffic control
exists.
be in place only while work is actually in progress or a definite need
11. Except for devices required by Note 10, traffic control devices should
shall be erected at or near the CSJ limits.
strips. The BEGIN ROAD WORK NEXT X MILES, CONTRACTOR and END ROAD WORK signs
solely of mobile operation work, such as striping or milling edgeline rumble
the TRAFFIC FINES DOUBLE sign will not be required on projects consisting
sign with plaque shall be erected in advance of the CSJ limits. However,
TEXT LATER (see Sign Detail G20-10T) and the WORK ZONE TRAFFIC FINES DOUBLE
10. As shown on BC(2), the OBEY WARNING SIGNS STATE LAW sign, STAY ALERT TALK OR
appropriate traffic control devices to be used.
BC sheets are examples. As necessary, the Engineer will determine the most
9. The temporary traffic control devices shown in the illustrations of the
provide a detail to the Contractor before the sign is manufactured.
not shown in this manual shall be shown in the plans or the Engineer shall
"Standard Highway Sign Designs for Texas," latest edition. Sign details
8. All signs shall be constructed in accordance with the details found in the
justify the signing.
divided highways where median width will permit and traffic volumes
7. The Engineer may require duplicate warning signs on the median side of
revised to show appropriate work zone distance.
directed by the Engineer. The BEGIN ROAD WORK NEXT X MILES sign shall be
necessary warning signs as shown on these sheets, the TCP sheets or as
adjacent project is completed first, the Contractor shall erect the
redundant and the work areas appear continuous to the motorists. If the
FINES DOUBLE, and other advance warning signs if the signing would be
6. When projects abut, the Engineer(s) may omit the END ROAD WORK, TRAFFIC
Design Manual" or engineering judgment.
"A Policy on Geometric Design of Highways and Streets," the TxDOT "Roadway
Association of State Highway and Transportation Officials (AASHTO),
applicable design criteria contained in manuals such as the American
5. Geometric design of lane shifts and detours should, when possible, meet the
the approximate location of any device without the approval of the Engineer.
control devices as shown in the plans. The Contractor may not move or change
4. The Contractor is responsible for installing and maintaining the traffic
sign and seal Contractor proposed changes.
by a licensed professional engineer for approval. The Engineer may develop,
3. The Contractor may propose changes to the TCP that are signed and sealed
responsibility of the Engineer.
2. The development and design of the Traffic Control Plan (TCP)is the
shown in the "Texas Manual on Uniform Traffic Control Devices" (TMUTCD).
The information contained in these sheets meet or exceed the requirements
devices, construction pavement markings, and typical work zone signs.
to show typical examples for placement of temporary traffic control
1. The Barricade and Construction Standard Sheets (BC sheets) are intended
WORKER SAFETY APPAREL NOTES:
considered for high traffic volume work areas or night time work.
performance for Class 2 or 3 risk exposure. Class 3 garments should be
Apparel," or equivalent revisions, and labeled as ANSI 107-2004 standard
the requirements of ISEA "American National Standard for High-Visibility
within the right-of-way shall wear high-visibility safety apparel meeting
1. Workers on foot who are exposed to traffic or to construction equipment
3.0" Radius, 1.25" Border, 0.75" Indent, Black on Yellow;
3.0" Radius, 1.25" Border, 0.75" Indent, Black on Orange;
.75"1.5"2"2"AND SYMBOL
BORDER
LEGEND,
BLACK
R=1.1".94.94.94.94.41.42.31"1"
.67".67"
1".31"
9"
R=.44"
R=.79"
R=.13".31".31"14".31"1.14"1.14"R=.75"2.57"2.88"1.17"5.55"17.5"6.38"
1.68"1.68"1.68"
8.38"
4.9"19.7"6"24.5"4.9"3.25"6"D12"48"4"1.25"3.5"20"36"3.5"5"C20"20"20"
3.5"12"2.8"6.3"2.8"11.7"2.8"14.6"3.5"
60"
1.25"
SIGN DETAIL (G20-10T)5".41[STAY ALERT] Font: D
[TALK OR TEXT LATER] Font: C specified length;
WHITE
BLACK
WHITE
BACKGROUND
YELLOW
FLUORESCENT
COLORS:
LEGEND
BORDER AND
BLACK
BACKGROUND
FLUORESCENT
ORANGE
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TxDOT TxDOT TxDOT
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SHEET NO.
C TxDOTof this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER:CONT
bc-14.dgn
November 2002 FILE:DATE:96
SHEET 2 OF 12
R11-2
ROAD
CLOSED
XX
ROAD
WORK
AHEAD
END
ROAD WORK
END
ROAD WORK
CW20-1D
CW1-6
ROAD
WORK
AHEAD
CW20-1D
NAME
ADDRESS
CITY
STATE
CONTRACTOR
ROAD WORK
NEXT X MILES
BEGIN
ROAD
WORK
AHEAD
ROAD
WORK
AHEAD PROJECT1 Block - City
1 Block - City
ROAD WORK
NEXT X MILESROAD WORK
END
ROAD WORK
NEXT X MILES
PROJECTCROSSROAD
*
X
X
X
X
ROAD
WORK
AHEAD
END
ROAD WORK
END
ROAD WORK
CW20-1D
NAME
ADDRESS
CITY
STATE
CONTRACTOR
WORK
ZONE
TRAFFIC
FINES
DOUBLE
WHEN
WORKERS
ARE PRESENT
*
*
ROAD WORK
BEGIN
T-INTERSECTION
ROAD
WORK
AHEAD
CW20-1D
CW20-1D
CW20-1D
3X
3X
XX
ROAD WORK
NEXT X MILES
ROAD WORK
NEXT X MILES
NEXT X MILES
INTERSECTED
ROADWAY 1000’-1500’ - Hwy
1000’-1500’ - Hwy
CSJ Limit
CSJ Limit
XXXXX
XXXXX
*
1,5,6
X
X
TYPICAL LOCATION OF CROSSROAD SIGNS
X
X
WORK
ZONE
TRAFFIC
FINES
DOUBLE
WHEN
WORKERS
ARE PRESENT
WORK
ZONE
TRAFFIC
FINES
DOUBLE
WHEN
WORKERS
ARE PRESENT
R20-5T
G20-5T
G20-5T
CW1-4R
WORK AREAS IN MULTIPLE LOCATIONS WITHIN CSJ LIMITS
SAMPLE LAYOUT OF SIGNING FOR WORK BEGINNING AT THE CSJ LIMITS
**
**
**
**
**
**
**
**
**
SAMPLE LAYOUT OF SIGNING FOR WORK BEGINNING DOWNSTREAM OF THE CSJ LIMITS
CW1-4L
**
CW20-1E
WORK
ROAD G20-5T
/ MILE1
2
NEXT X MILES
*
*
TYPICAL CONSTRUCTION WARNING SIGN SIZE AND SPACING
30
MPH
35
40
45
50
55
60
320
400
500
600
Posted
Speed
Sign
Spacing
(Apprx.)
2
65 700
70 800
3**
2
2
2
"X"
Feet
120
160
240
75 900 2
80 1000 2
SPACINGSIZE
4
9-07
Devices
Channelizing
Devices
Channelizing
min.
80’
AREA
WORK
Limit
CSJ
1 and 4)
see Note
(Optional
1 and 4)
see Note
(Optional
G20-2
G20-1aT
G20-1aT
NEXT X MILES
G20-2
CW13-1P
SPACE
WORK
CW13-1PMPH
MPH
G20-2
SPACE
WORK
Channelizing Devices
LEGEND
Sign
Type 3 Barricade
spacing requirements.
TMUTCD for sign
Spacing chart or the
Warning Sign Size and
See Typical Construction
G20-1bTR G20-1bTL
R20-5T
R20-5aTP G20-6T
G20-2
R20-5aTP
R20-5T
G20-5aP
G20-5aP
G20-2
G20-6T
channelizing devices
Type 3 Barricade or
devices
channelizing
Barricade or
Type 3
G20-6T
GENERAL NOTES
or Series
Number
Sign
Freeway
Expressway/
Road
Conventional
CW20
CW21
CW22 48" x 48" 48" x 48"
CW23
CW25
CW1, CW2,
CW7, CW8, 36" x 36" 48" x 48"
CW9, CW11,
CW14
CW3, CW4,
CW5, CW6, 48" x 48" 48" x 48"
CW8-3,
CW10, CW12
CSJ LIMITS AT T-INTERSECTION
R20-3T
**
TxDOT
G20-5aP
R20-5aTP
7-13
Standard
Division
Operations
Traffic
X
channelizing devices.
within the project limits. See the applicable TCP sheets for exact location and spacing of signs and
"ROAD WORK AHEAD"(CW20-1D)signs are placed in advance of these work areas to remind drivers they are still
When extended distances occur between minimal work spaces, the Engineer/Inspector should ensure additional
(G20-1bTR)" signs shall be replaced by the detour signing called for in the plans.
The "ROAD WORK NEXT X MILES" left arrow(G20-1bTL) and "ROAD WORK NEXT X MILES" right arrow
NAME"(G20-6T) sign behind the Type 3 Barricades for the road closure (see BC(10) also).
2. If construction closes the road at a T-intersection the Contractor shall place the "CONTRACTOR
being performed at or near an intersection.
such as a flagger and accompanying signs, or other signs, that should be used when work is
1. The Engineer will determine the types and location of any additional traffic control devices,
PROJECT LIMIT
BARRICADE AND CONSTRUCTION
WARNING
SIGNS
STATE LAW
OBEY
**R20-3T*
WARNING
SIGNS
STATE LAW
OBEY
WORK
ZONE
TRAFFIC
FINES
DOUBLE
WHEN
WORKERS
ARE PRESENT
BEGIN**G20-9TP
**R20-5T
**R20-5aTP
the plans or as determined by the Engineer/Inspector, shall be in place.
6. When work occurs in the intersection area, appropriate traffic control devices, as shown elsewhere in
5. Additional traffic control devices may be shown elsewhere in the plans for higher volume crossroads.
will determine whether a roadway is considered high volume.
motorists of the length of construction in either direction from the intersection. The Engineer
4. The "ROAD WORK NEXT X MILES"(G20-1aT)sign shall be required at high volume crossroads to advise
Zone Standard Sheets.
location and spacing of any sign not shown on the BC sheets, Traffic Control Plan sheets or the Work
be considered part of the minimum requirements. The Engineer/Inspector will determine the proper
AHEAD, LOOSE GRAVEL, or other appropriate signs. When additional signs are required, these signs will
3. Based on existing field conditions, the Engineer/Inspector may require additional signs such as FLAGGER
in the plans.
crossroads. The Engineer will determine whether a road is low volume. This information shall be shown
Texas" manual for sign details. The Engineer may omit the advance warning signs on low volume
"Typical Construction Warning Sign Size and Spacing"). See the "Standard Highway Sign Designs for
with the reduced size 36" x 18" "END ROAD WORK"(G20-2) sign on low volume crossroads (see Note 4 under
2. The Engineer may use the reduced size 36" x 36" ROAD WORK AHEAD (CW20-1D) sign mounted back to back
(G20-2) "END ROAD WORK" sign, unless noted otherwise in plans.
1. The typical minimum signing on a crossroad approach should be a "ROAD WORK AHEAD" (CW20-1D)sign and a
SPEED
LIMIT
XX
X
*
location
with sign
coordinate
line should
NO-PASSING
Beginning of SPEED
LIMIT
XX*
R2-1
R2-1
BC(2)-14
8-14
R2-1
SPEED
LIMIT
XX
**
X
G20-10T
XX
CW1-4L
MPHCW13-1P
NAME
ADDRESS
CITY
STATE
CONTRACTOR
ROAD WORK
NEXT X MILES
BEGIN
*
**
*
NOTES
* the end of the work zone.
Contractor will install a regulatory speed limit sign at
Control Plan.
and other signs or devices as called for on the Traffic
Area for placement of "ROAD WORK AHEAD" (CW20-1D)sign
consisting solely of mobile operations work.
FINES DOUBLE signs will not be required on projects
Required CSJ Limit signing. See Note 10 on BC(1). TRAFFIC
if workers are present.
lying outside the CSJ Limits where traffic fines may double
motorist of entering or leaving a part of the work zone
signs are required outside the CSJ Limits. They inform the
shall be used as shown on the sample layout when advance
The "BEGIN WORK ZONE"(G20-9TP) and "END WORK ZONE" (G20-2bT)
No decimals shall be used.
to the nearest whole mile with the approval of the Engineer.
This distance shall replace the "X" and shall be rounded
WORK NEXT X MILES"(G20-5T)sign for each specific project.
to be placed on the G20-1 series signs and "BEGIN ROAD
The Contractor shall determine the appropriate distance
DO
NOT
PASS
appropriate)
(as
R4-1
sizes.
Sign Designs for Texas" manual for complete list of available sign design
6. See sign size listing in "TMUTCD", Sign Appendix or the "Standard Highway
5. Only diamond shaped warning sign sizes are indicated.
Location of Crossroad Signs".
crossroads at the discretion of the Engineer. See Note 2 under "Typical
4. 36" x 36" "ROAD WORK AHEAD" (CW20-1D)signs may be used on low volume
or more advance warning.
3. Distance between signs should be increased as required to have 1/2 mile
advance warning.
2. Distance between signs should be increased as required to have 1500 feet
1. Special or larger size signs may be used as necessary.
work area and/or distance between each additional sign.
Minimum distance from work area to first Advance Warning sign nearest the
(TMUTCD) typical application diagrams or TCP Standard Sheets.
see Part 6 of the "Texas Manual on Uniform Traffic Control Devices"
For typical sign spacings on divided highways, expressways and freeways,
G20-10T
SPEED
LIMIT
R2-1
XX
**
X X
X
**
*
G20-2bT
END
WORK ZONE
**
(See note 2 below)
May be mounted on back of "ROAD WORK AHEAD"(CW20-1D) sign with approval of Engineer.
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TxDOT TxDOT TxDOT
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SHEET NO.
C TxDOTof this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER:CONT
bc-14.dgn
November 2002 FILE:DATE:97
SHEET 3 OF 12
TxDOT
9-07
7-13
Standard
Division
Operations
Traffic
WORK ZONE SPEED LIMIT
BARRICADE AND CONSTRUCTION
SPEED
LIMIT
60
SPEED
LIMIT
70
TYPICAL APPLICATION OF WORK ZONE SPEED LIMIT SIGNS
WORK
ZONE
SPEED
LIMIT
60
WORK
ZONE WORK
ZONE
SPEED
LIMIT
70
(750’ - 1500’)(750’ - 1500’)
R2-1
R2-1
R2-1
R2-1
Reduced speeds should only be posted in the vicinity
of work activity and not throughout the entire project.
LIMIT
SPEED
CW3-5
See General Note 4
60
and approved by the Texas Transportation Commission, or by City Ordinance when within Incorporated City Limits.
Work zone speed limits shall be regulatory, established in accordance with the "Procedures for Establishing Speed Zones,"
or covered during periods when they are not needed.
Regulatory work zone speed signs (R2-1) shall be removed
signing.
additional advance
See BC(2) for
one direction only.
Signing shown for
LIMITS
CSJ
Note 4
See General
LIMIT
SPEED
CW3-5
60
G20-5aP
G20-5aP
SPEED
LIMIT
60
GENERAL NOTES
GUIDANCE FOR USE:
mounting height.
3. Speed zone signs are illustrated for one direction of travel and are normally posted
for each direction of travel.
40 mph and greater 0.2 to 2 miles
35 mph and less 0.2 to 1 mile
5. Regulatory speed limit signs shall have black legend and border on a white reflective
B. Flagger stationed next to sign.
A. Law enforcement.
C. Portable changeable message sign (PCMS).
This type of work zone speed limit should be included on the design of
the traffic control plans when restricted geometrics with a lower design
speed are present in the work zone and modification of the geometrics to
a higher design speed is not feasible.
Work activity may also be defined as a change in the roadway that requires
a reduced speed for motorists to safely negotiate the work area, including:
a) rough road or damaged pavement surface
b) substantial alteration of roadway geometrics (diversions)
c) construction detours
d) grade
e) width
As long as any of these conditions exist, the work zone speed limit signs
SHORT TERM WORK ZONE SPEED LIMITS
the traffic control plans when workers or equipment are not behind concrete
f) other conditions readily apparent to the driver
projects where speed control is of major importance.
E. Speed monitor trailers or signs.
D. Low-power (drone) radar transmitter.
(See Removing or Covering on BC(4)).
Long/Intermediate Term Work Zone Speed Limit signs, when approved as described
above, should be posted and visible to the motorist when work activity is present.
motorists only when work activity is present. When work activity is not
present, signs shall be removed or covered.
Short Term Work Zone Speed Limit signs should be posted and visible to the
background (See "Reflective Sheeting" on BC(4)).
4. Frequency of work zone speed limit signs should be:
8. Techniques that may help reduce traffic speeds include but are not limited to:
2. Regulatory work zone speed limit signs shall be placed on supports at a 7 foot minimum
should remain in place.
1. Regulatory work zone speed limits should be used only for sections of construction
LONG/INTERMEDIATE TERM WORK ZONE SPEED LIMITS
zone reduction see TxDOT form #1204 in the TxDOT e-form system.
conditions and factors impacting allowable regulatory construction speed
10.For more specific guidance concerning the type of work, work zone
Work Zone Speed Limits should only be posted as approved for each project.
9. Speeds shown on details above are for illustration only.
This type of work zone speed limit may be included on the design of
barrier, when work activity is within 10 feet of the traveled way or actually
in the travelled way.
otherwise noted under "REMOVING OR COVERING" on BC(4).
7. Turning signs from view, laying signs over or down will not be allowed, unless as
directly, but shall be considered subsidiary to Item 502.
"WORK ZONE"(G20-5aP) plaque and the "SPEED LIMIT"(R2-1)signs shall not be paid for
6. Fabrication, erection and maintenance of the"ADVANCE SPEED LIMIT"(CW3-5)sign,
Note 4
See General
R2-1
WORK
ZONE
SPEED
LIMIT
60 R2-1
signing.
additional advance
See BC(2) for
one direction only.
Signing shown for
G20-5aPG20-5aP
SPEED
LIMIT
70 R2-1
LIMITS
CSJ
BC(3)-14
8-14
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C TxDOTof this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER:CONT
bc-14.dgn
November 2002 FILE:DATE:98
SHEET 4 OF 12
9-07
7-13
Standard
Division
Operations
Traffic
TEMPORARY SIGN NOTES
BARRICADE AND CONSTRUCTIONCurbXXTravel lane edge 12’ min.
FRONT ELEVATION
SIDE ELEVATIONTravel lane edge OR
TYPICAL MINIMUM CLEARANCES FOR LONG TERM AND INTERMEDIATE TERM SIGNS
*
*
CONTRACTOR REQUIREMENTS FOR MAINTAINING PERMANENT SIGNS
WITHIN THE PROJECT LIMITS
0’-6’
1. Permanent signs are used to give notice of traffic laws or regulations, call
attention to conditions that are potentially hazardous to traffic operations,
show route designations, destinations, directions, distances, services, points
of interest, and other geographical, recreational, or cultural information.
Drivers proceeding through a work zone need the same, if not better route
guidance as normally installed on a roadway without construction.
2. When permanent regulatory or warning signs conflict with work zone conditions,
3. When existing permanent signs are moved and relocated due to construction
purposes, they shall be visible to motorists at all times.
4. If existing signs are to be relocated on their original supports, they shall be
installed on crashworthy bases as shown on the SMD Standard sheets. The signs
shall meet the required mounting heights shown on the BC Sheets or the SMD
Standards. This work should be paid for under the appropriate pay item for
relocating existing signs.
5. If permanent signs are to be removed and relocated using temporary supports,
the Contractor shall use crashworthy supports as shown on the BC sheets or the
CWZTCD. The signs shall meet the required mounting heights shown on the
BC Sheets or the SMD Standards during construction. This work should be paid
for under the appropriate pay item for relocating existing signs.
6. Any sign or traffic control device that is struck or damaged by the Contractor
or his/her construction equipment shall be replaced as soon as possible by the
Contractor to ensure proper guidance for the motorists. This will be subsidiary
to Item 502.
remove or cover the permanent signs until the permanent sign message matches
the roadway condition.
**
**
ATTACHMENT FOR SIGN SUPPORTS
Wood
STOP/SLOW PADDLES
10"10"
24"
24"
24"
24"
8"C 8"B
"
9"8"
R=2"3"
"+
6.0’ min.
Fiber Reinforced Plastic
Wood, metal or
the ground.
SIZE OF SIGNS
SIGN SUBSTRATES
SIGN LETTERS
Hand Signaling Devices in the TMUTCD.
shall only be as specifically described in Section 6E.03
4. Any lights incorporated into the STOP or SLOW paddle faces
length of 6’ to the bottom of the sign.
3. STOP/SLOW paddles may be attached to a staff with a minimum
retroreflectorized.
2. When used at night, the STOP/SLOW paddle shall be
as detailed below.
by flaggers. The STOP/SLOW paddle size should be 24" x 24"
1. STOP/SLOW paddles are the primary method to control traffic
curb
from
minimum
2 ’
min.
6’
9.0’ max.
7.0’ min.
9.0’ max.
7.0’ min.
9.0’ max.
7.0’ min.
shoulder
Paved
shoulder
Paved
above sign
protrude
shall not
Support
above sign
protrude
shall not
Support
substrate.
back of the sign
1/2 way up the
extend more than
Sign supports shall
Legend & Border - White
Background - Red
Legend & Border - Black
Background - Orange
Supplemental plaques (advisory or distance) should not cover the surface of the parent sign.
When plaques are placed on dual-leg supports, they should be attached to the upright nearest the travel lane.
Objects shall NOT be placed under skids as a means of leveling.
When placing skid supports on unlevel ground, the leg post lengths must be adjusted so the sign appears straight and plumb.
MPH
be allowed.
other means.
by splicing or
extended or repaired
supports shall not be
any means. Wood
joined or spliced by
signs shall not be
support. Multiple
directly to the sign
shall be attached
Each sign
Nails shall NOT
sign supports
substrates to other types of
procedures for attaching sign
manufacturer’s recommended
or screws. Use TxDOT’s or
will be by bolts and nuts
Attachment to wooden supports
FLAGS ON SIGNS
greater
6’ or
of at least the same gauge material.
should be at least 5 times nominal post size, centered on the splice and
the sign substrate, not near the base of the support. Splice insert lengths
above and two below the spice point. Splice must be located entirely behind
height will only be allowed when the splice is made using four bolts, two
Splicing embedded perforated square metal tubing in order to extend post
GENERAL NOTES FOR WORK ZONE SIGNS
1. Contractor shall install and maintain signs in a straight and plumb condition and/or as directed by the Engineer.
2. Wooden sign posts shall be painted white.
3. Barricades shall NOT be used as sign supports.
4. All signs shall be installed in accordance with the plans or as directed by the Engineer. Signs shall be used to regulate, warn, and
guide the traveling public safely through the work zone.
5. The Contractor may furnish either the sign design shown in the plans or in the "Standard Highway Sign Designs for Texas" (SHSD). The
Engineer/Inspector may require the Contractor to furnish other work zone signs that are shown in the TMUTCD but may have been omitted
from the plans. Any variation in the plans shall be documented by written agreement between the Engineer and the Contractor’s
Responsible Person. All changes must be documented in writing before being implemented. This can include documenting the changes in
the Inspector’s TxDOT diary and having both the Inspector and Contractor initial and date the agreed upon changes.
6. The Contractor shall furnish sign supports listed in the "Compliant Work Zone Traffic Control Device List" (CWZTCD). The Contractor
shall install the sign support in accordance with the manufacturer’s recommendations. If there is a question regarding installation
procedures, the Contractor shall furnish the Engineer a copy of the manufacturer’s installation recommendations so the Engineer can
verify the correct procedures are being followed.
7. The Contractor is responsible for installing signs on approved supports and replacing signs with damaged or cracked substrates and/or
damaged or marred reflective sheeting as directed by the Engineer/Inspector.
8. Identification markings may be shown only on the back of the sign substrate. The maximum height of letters and/or company logos used
for identification shall be 1 inch.
DURATION OF WORK (as defined by the "Texas Manual on Uniform Traffic Control Devices" Part 6)
1. The types of sign supports, sign mounting height,the size of signs, and the type of sign substrates can vary based on the type of
work being performed. The Engineer is responsible for selecting the appropriate size sign for the type of work being performed. The
Contractor is responsible for ensuring the sign support, sign mounting height and substrate meets manufacturer’s recommendations in
regard to crashworthiness and duration of work requirements.
a. Long-term stationary - work that occupies a location more than 3 days.
more than one hour.
c. Short-term stationary - daytime work that occupies a location for more than 1 hour in a single daylight period.
d. Short, duration - work that occupies a location up to 1 hour.
e. Mobile - work that moves continuously or intermittently (stopping for up to approximately 15 minutes.)
SIGN MOUNTING HEIGHT
1. The bottom of Long-term/Intermediate-term signs shall be at least 7 feet, but not more than 9 feet, above the paved surface, except
as shown for supplemental plaques mounted below other signs.
2. The bottom of Short-term/Short Duration signs shall be a minimum of 1 foot above the pavement surface but no more than 2 feet above
3. Long-term/Intermediate-term Signs may be used in lieu of Short-term/Short Duration signing.
appropriate Long-term/Intermediate sign height.
5. Regulatory signs shall be mounted at least 7 feet, but not more than 9 feet, above the paved surface regardless of work duration.
REFLECTIVE SHEETING
1. All signs shall be retroreflective and constructed of sheeting meeting the color and retro-reflectivity requirements of DMS-8300
for rigid signs or DMS-8310 for roll-up signs. The web address for DMS specifications is shown on BC(1).
1. All sign letters and numbers shall be clear, and open rounded type uppercase alphabet letters as approved by the Federal Highway
Administration (FHWA) and as published in the "Standard Highway Sign Design for Texas" manual. Signs, letters and numbers shall be of
first class workmanship in accordance with Department Standards and Specifications.
REMOVING OR COVERING
1. When sign messages may be confusing or do not apply, the signs shall be removed or completely covered.
2. Long-term stationary or intermediate stationary signs installed on square metal tubing may be turned away from traffic 90 degrees when
3. Signs installed on wooden skids shall not be turned at 90 degree angles to the roadway. These signs should be removed or completely
covered when not required.
4. When signs are covered, the material used shall be opaque, such as heavy mil black plastic, or other materials which will cover the
9. The Contractor shall replace damaged wood posts. New or damaged wood sign posts shall not be spliced.
1. The Contractor shall furnish the sign sizes shown on BC (2) unless otherwise shown in the plans or as directed by the Engineer.
intersections where the sign may be seen from approaching traffic.
the sign message is not applicable. This technique may not be used for signs installed in the median of divided highways or near any
1. The Contractor shall ensure the sign substrate is installed in accordance with the manufacturer’s recommendations for the type of sign
support that is being used. The CWZTCD lists each substrate that can be used on the different types and models of sign supports.
2. "Mesh" type materials are NOT an approved sign substrate, regardless of the tightness of the weave.
3. All wooden individual sign panels fabricated from 2 or more pieces shall have one or more plywood cleat, 1/2" thick by 6" wide,
fastened to the back of the sign and extending fully across the sign. The cleat shall be attached to the back of the sign using wood
screws that do not penetrate the face of the sign panel. The screws shall be placed on both sides of the splice and spaced at 6"
centers. The Engineer may approve other methods of splicing the sign face.
b. Intermediate-term stationary - work that occupies a location more than one daylight period up to 3 days, or nighttime work lasting
2. White sheeting, meeting the requirements of DMS-8300 Type A, shall be used for signs with a white background.
FL3. Orange sheeting, meeting the requirements of DMS-8300 Type B or Type C , shall be used for rigid signs with orange backgrounds.FL
4. Short-term/Short Duration signs shall be used only during daylight and shall be removed at the end of the workday or raised to
5. Burlap shall NOT be used to cover signs.
SIGN SUPPORT WEIGHTS
6. Duct tape or other adhesive material shall NOT be affixed to a sign face.
1. Where sign supports require the use of weights to keep from turning over,
the use of sandbags with dry, cohesionless sand should be used.
2. The sandbags will be tied shut to keep the sand from spilling and to
maintain a constant weight.
3. Rock, concrete, iron, steel or other solid objects shall not be permitted
for use as sign support weights.
4. Sandbags should weigh a minimum of 35 lbs and a maximum of 50 lbs.
5. Sandbags shall be made of a durable material that tears upon vehicular
6. Rubber ballasts designed for channelizing devices should not be used for
ballast on portable sign supports. Sign supports designed and manufactured
with rubber bases may be used when shown on the CWZTCD list.
7. Sandbags shall only be placed along or laid over the base supports of the
traffic control device and shall not be suspended above ground level or
hung with rope, wire, chains or other fasteners. Sandbags shall be placed
along the length of the skids to weigh down the sign support.
8. Sandbags shall NOT be placed under the skid and shall not be used to level
sign supports placed on slopes.
impact. Rubber (such as tire inner tubes) shall NOT be used.
the sign face.
red-orange in color. Flags shall not be allowed to cover any portion of
shall be 16 inches square or larger and shall be orange or fluorescent
1. Flags may be used to draw attention to warning signs. When used the flag
entire sign face and maintain their opaque properties under automobile headlights at night, without damaging the sign sheeting.
7. Signs and anchor stubs shall be removed and holes backfilled upon completion of work.
BC(4)-14
8-14
DN:CK:DW:CK:
JOB
COUNTY
SECT
DIST
TxDOT TxDOT TxDOT TxDOT
HIGHWAY
SHEET NO.
CONT
FILE:DATE: 99
7-13of this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER:30"
40"
27"
36"
24"
2x6
2x4 x 40"
72"
2x6
Front Side
Top
*
*
that can be used for each approved sign support.
See the CWZTCD for the type of sign substrate
NOT be allowed. Posts shall be painted white.
Wood sign posts MUST be one piece. Splicing will
See BC(4) for definition of "Work Duration."
post
wood
4x4
sign face
21 sq. ft. of
Maximum
block
4x4
post
wood
4x4
requirement
height
for sign
See BC(4)
This will be considered subsidiary to Item 502.
foundations shall be removed from the project site.
3. When project is completed, all sign supports and
CWZTCD List.
7 ft. circle, except for specific materials noted on the
2. No more than 2 sign posts shall be placed within a
connection.
lag screws must be used on every joint for final
supports, but 3/8" bolts with nuts or 3/8" x 3 1/2"
1. Nails may be used in the assembly of wooden sign
GENERAL NOTES
Front
*
post
wood
4x4
requirement
height
for sign
See BC(4)
sign face
12 sq. ft. of
Maximum 24"
60"
2x6
2x6
Top
block
4x4
skid
2x6
additional stability.
be increased for
Length of skids may
24"2x4 brace
4x4 block4x4 block
Side
screws
(min.) lag
or 3/8" x 3 1/2"
3/8" bolts w/nuts
LONG/INTERMEDIATE TERM STATIONARY - PORTABLE SKID MOUNTED SIGN SUPPORTS
SKID MOUNTED WOOD SIGN SUPPORTS
PERFORATED SQUARE METAL TUBING
GROUND MOUNTED SIGN SUPPORTS
Two post installations can be used for larger signs.
The maximum sign square footage shall adhere to the manufacturer’s recommendation.
Refer to the CWZTCD and the manufacturer’s installation procedure for each type sign support.
4" max.
Ground surface
WING CHANNEL
Post
Sign
Post
Base
for embedment.
See the CWZTCD
48"
5’
square tubing
or 1 3/4" x 1 3/4"
with 5/16" holes
1 3/4" galv. round
(DO NOT SPLICE)
12 ga post
1 3/4" x 1 3/4" x 11 foot
CWZTCD LIST. SEE BC(1) FOR WEBSITE LOCATION.
AND SHORT TERM SUPPORTS CAN BE FOUND ON THE
MORE DETAILS OF APPROVED LONG/INTERMEDIATE
Posts
of
Number
MOUNTED SIGN SUPPORTS
WOOD POST SYSTEM FOR GROUND
WEDGE ANCHORS
18"
4"
*
4"
6"
of Traffic
Direction
Dia.(typ)
1 1/2"17 1/2"20 1/2"5 BOLT (TYP.)
3/8" X 4-1/2 gr.
3"
telescopes into sleeve
(hole to hole) 12 ga. support
1 3/4 " x 1 3/4 " x 129"
tubing diagonal brace
to hole) 12 ga. square perforated
1 3/4 " x 1 3/4 " x 52" (hole
tubing cross brace
to hole) 12 ga. square perforated
1 3/4 " x 1 3/4 " x 32" (hole
20 1/2"above pavement
provide 7’ height
telescope to
Upright must
5 bolt
3/8 " X 3" gr.
Ground surface
Post
Sign
(Direct Embedment)
OPTION 1
max.
4"
Ground surface
Post
Sign
weak soils.
55" min. in
strong soils,
34" min. in
(Anchor Stub)
OPTION 2
post)
than sign
(1/4" larger
Anchor Stub
desirable
9"
max.
4"
Ground surface
Post
Sign
post) x 18"
than sign
(1/2" larger
sleeve
reinforcing
Optional
18"
weak soils.
55" min. in
strong soils,
34" min. in
(Anchor Stub and Reinforcing Sleeve))
OPTION 3
post)
than sign
(1/4" larger
Anchor Stub
desirable
9"
bolted anchor
Lap-splice/base
minimum
48"
sign only
thinwall plastic
10mm extruded
9 sq. ft. or less-
1/2" plywood is allowed.
the CWZTCD, except 5/8" plywood.
substrate listed in section J.2.d of
16 sq. ft. or less of any rigid sign
OTHER DESIGNS
"Traffic Engineering Standard Sheets" on BC(1)).
if approved by the Engineer. (See web address for
face. They may be set in concrete or in sturdy soils
sign supports for signs up to 10 square feet of sign
on the SMD Standard Sheets may be used as temporary
Both steel and plastic Wedge Anchor Systems as shown 84"41"21"131 1/2 "4"
sign panel and supports
(2 per support) joining
3/8" x 3" gr. 5 bolt
FILE:
REVISIONS
C TxDOT
bc-14.dgn
November 2002
9-07
36"
match sideslope
needed to
pin at angle
weld starts here
weldhere
starts
weld
back fill puddle.
weld, do not
directions. Minimum
going in opposite
opposite sides
Welds to start on
48"
2"
Side View
upright
12 ga.
2" x 2" x
2.5’
60"
3"
SKID MOUNTED PERFORATED SQUARE STEEL TUBING SIGN SUPPORTS
around tubing
Completely welded8 1/2" 7/16"
32’SINGLE LEG BASE
5’
weld
welded to skid
tubing sleeve
perforated
12 ga. square
(hole to hole)
2" x 2" x 8"
tubing upright
perforated
12 ga. square
(hole to hole)
1 3/4 " x 1 3/4 " x 129"
tubing skid
12 ga. perforated
(hole to hole)
2" x 2" x 59"
Standard
Division
Operations
Traffic
TYPICAL SIGN SUPPORT
BARRICADE AND CONSTRUCTION
SHEET 5 OF 12
BC(5)-14
8-14
DN:CK:DW:CK:
JOB
COUNTY
SECT
DIST
REVISIONS
HIGHWAY
SHEET NO.
CONT
bc-14.dgn
November 2002 FILE:DATE:100
SHEET 6 OF 12
Standard
Division
Operations
Traffic
MESSAGE SIGN (PCMS)
PORTABLE CHANGEABLE
BARRICADE AND CONSTRUCTION
TxDOT TxDOTTxDOT TxDOT FILE:
C TxDOT
9-07
PCMS SIGNS WITHIN THE R.O.W. SHALL BE BEHIND GUARDRAIL OR
CONCRETE BARRIER OR SHALL HAVE A MINIMUM OF FOUR (4)
PLASTIC DRUMS PLACED PERPENDICULAR TO TRAFFIC ON THE
LANES SHIFT in Phase 1 must be used with STAY IN LANE in Phase 2.**
Roadway
designation # IH-number, US-number, SH-number, FM-number
1. When Full Matrix PCMS signs are used, the character height and legibility/visibility requirements shall be maintained as listed in Note 15 under "PORTABLE
CHANGEABLE MESSAGE SIGNS" above.
shall maintain the legibility/visibility requirement listed above.
for, or replace that sign.
4. A full matrix PCMS may be used to simulate a flashing arrow board provided it meets the visibility, flash rate and dimming requirements on BC(7), for the
same size arrow.
FULL MATRIX PCMS SIGNS
Access Road ACCS RD Major MAJ
Construction
WORDING ALTERNATIVES
1. The words RIGHT, LEFT and ALL can be interchanged as appropriate.
2. Roadway designations IH, US, SH, FM and LP can be interchanged as
appropriate.
3. EAST, WEST, NORTH and SOUTH (or abbreviations E, W, N and S) can
be interchanged as appropriate.
4. Highway names and numbers replaced as appropriate.
5. ROAD, HIGHWAY and FREEWAY can be interchanged as needed.
6. AHEAD may be used instead of distances if necessary.
7. FT and MI, MILE and MILES interchanged as appropriate.
8. AT, BEFORE and PAST interchanged as needed.
9. Distances or AHEAD can be eliminated from the message if a
location phase is used.
3. When symbol signs are represented graphically on the Full Matrix PCMS, they shall only supplement the use of the static sign represented, and shall not substitute
APPLICATION GUIDELINES
1. Only 1 or 2 phases are to be used on a PCMS.
2. The 1st phase (or both) should be selected from the
"Road/Lane/Ramp Closure List" and the "Other Condition List".
3. A 2nd phase can be selected from the "Action to Take/Effect
on Travel, Location, General Warning, or Advance Notice
Phase Lists".
4. A Location Phase is necessary only if a distance or location
is not included in the first phase selected.
5. If two PCMS are used in sequence, they must be separated by
and should be understandable by themselves.
6. For advance notice, when the current date is within seven days
of the actual work date, calendar days should be replaced with
days of the week. Advance notification should typically be for
CLOSED
BLVD
XXXXXXXX
**LANE
IN
STAY
CONST AHD
CROSSING XING RT LN
Vehicles (s)VEH, VEHS
UPR LEVEL
LWR LEVEL
HR, HRS
1. The Engineer/Inspector shall approve all messages used on portable
changeable message signs (PCMS).
2. Messages on PCMS should contain no more than 8 words (about four to
eight characters per word), not including simple words such as "TO,"
"FOR," "AT," etc.
3. Messages should consist of a single phase, or two phases that
alternate. Three-phase messages are not allowed. Each phase of the
message should convey a single thought, and must be understood by
itself.
4. Use the word "EXIT" to refer to an exit ramp on a freeway; i.e.,
"EXIT CLOSED." Do not use the term "RAMP."
5. Always use the route or interstate designation (IH, US, SH, FM)
along with the number when referring to a roadway.
6. When in use the bottom of a stationary PCMS message panel should be
a minimum 7 feet above the roadway, where possible.
7. The message term "WEEKEND" should be used only if the work is to
start on Saturday morning and end by Sunday evening at midnight.
Actual days and hours of work should be displayed on the PCMS if work
is to begin on Friday evening and/or continue into Monday morning.
8. The Engineer/Inspector may select one of two options which are avail-
able for displaying a two-phase message on a PCMS. Each phase may be
displayed for either four seconds each or for three seconds each.
9. Do not "flash" messages or words included in a message. The message
should be steady burn or continuous while displayed.
10. Do not present redundant information on a two-phase message; i.e.,
keeping two lines of the message the same and changing the third line.
12. Do not display the message "LANES SHIFT LEFT" or "LANES SHIFT RIGHT"
on a PCMS. Drivers do not understand the message.
the face of the sign.
14. The following table lists abbreviated words and two-word phrases that
are acceptable for use on a PCMS. Both words in a phrase must be
displayed together. Words or phrases not on this list should not be
PORTABLE CHANGEABLE MESSAGE SIGNS
SHOULD BE PLACED WITH ONE DRUM AT EACH OF THE FOUR CORNERS OF THE UNIT.
OF TRAFFIC. WHEN EXPOSED TO TWO WAY TRAFFIC, THE FOUR DRUMS
UPSTREAM SIDE OF THE PCMS, WHEN EXPOSED TO ONE DIRECTION
WHEN NOT IN USE, REMOVE THE PCMS FROM THE RIGHT-OF-WAY OR PLACE THE PCMS
BEHIND BARRIER OR GUARDRAIL WITH SIGN PANEL TURNED PARALLEL TO TRAFFIC
WORD OR PHRASEABBREVIATION ABBREVIATION WORD OR PHRASE
2. When symbol signs, such as the "Flagger Symbol"(CW20-7) are represented graphically on the Full Matrix PCMS sign and, with the approval of the Engineer, it
abbreviated, unless shown in the TMUTCD.
bars is appropriate.
PCMS has malfunctioned. A pattern such as a series of horizontal solid
not alarm motorists and will only be used to alert workers that the
17. If disabled, the PCMS should default to an illegible display that will
left or right justified.
16. Each line of text should be centered on the message board rather than
and must be legible from at least 400 feet.
daylight. Truck mounted units must have a character height of 10 inches
should be legible from at least 600 feet at night and 800 feet in
units. They should be visible from at least 1/2 (.5) mile and the text
15. PCMS character height should be at least 18 inches for trailer mounted
13. Do not display messages that scroll horizontally or vertically across
11. Do not use the word "Danger" in message.
7-13of this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER: no more than one week prior to the work.
a minimum of 1000 ft. Each PCMS shall be limited to two phases,
RECOMMENDED PHASES AND FORMATS FOR PCMS MESSAGES DURING ROADWORK ACTIVITIES
Phase 2: Possible Component Lists
CAUTION
USE
Notice List
** Advance
List
Warning
XX MPH
SPEED
ADVISORY
XX MPH
LIMIT
SPEED
XX MPH
SPEED
MAXIMUM
XX MPH
SPEED
MINIMUM
EXIT
LANE
RIGHT
SAFELY
DRIVE
CARE
WITH
DRIVE
X PM
XX AM-
TUE-FRI
MONDAY
BEGINS
MAY XX
BEGINS
XX AM
XX PM -
MAY X-X
X PM-X AM
XX
APR XX-
FRI-SUN
NEXT
XX PM
TO
XX AM
AUG XX
TUE
NEXT
XX AM
XX PM-
TONIGHT
Road/Lane/Ramp Closure List
(The Engineer may approve other messages not specifically covered here.)
*
DELAYS
EXPECT
Other Condition List
Phase 1: Condition Lists
See Application Guidelines Note 6.
List
Action to Take/Effect on Travel
List
Location
XXX FT
CLOSED
SHOULDER
XXX FT
CLOSED
RIGHT LN
X MILE
CLOSED
EXIT XXX
CLOSED
TO BE
RIGHT LN
CLOSED
ROAD
FRONTAGE
OPEN
LANES
RIGHT X
CLOSURES
LANE
DAYTIME
CLOSED
EXIT
I-XX SOUTH
TUE - FRI
CLOSED
X LANES
XXX FT
ROADWORK
XXXX FT
FLAGGER
XXXX FT
NARROWS
RIGHT LN
XXXX FT
TRAFFIC
MERGING
XXXX FT
GRAVEL
LOOSE
X MILE
DETOUR
SH XXXX
PAST
ROADWORK
XXXX FT
BUMP
XXXX FT
SIGNAL
TRAFFIC
XXXX FT
REPAIRS
ROAD
XXXX FT
NARROWS
LANE
XX MILE
TRAFFIC
TWO-WAY
XXXX FT
LANES
UNEVEN
XXXX FT
ROAD
ROUGH
FRI-SUN
NEXT
ROADWORK
X MILES
EXIT
US XXX
SHIFT
LANES
SOUTH
US XXX
STAY ON
RIGHT
MERGE
X EXITS
NEXT
DETOUR
US XXX N
USE
TRUCKS
TRUCKS
FOR
WATCH
XXX FT
SPEED
REDUCE
ROUTES
OTHER
USE
RIGHT
X LINES
FORM
RD EXIT
XXXXX
USE
NORTH
I-XX
USE EXIT
TO I-XX N
I-XX E
USE
TRUCKS
FOR
WATCH
DELAYS
EXPECT
STOP
TO
PREPARE
USE
SHOULDER
END
WORKERS
FOR
WATCH
FM XXXX
AT
CROSSING
RAILROAD
BEFORE
MILES
X
NEXT
EXIT
US XXX
PAST
XXXXXXX
TO
XXXXXXX
FM XXXX
TO
US XXX
XXX FT
TRAFFIC
CONST
EXIT XXX
USE
CLOSED
EXIT
X MILE
CLOSED
FREEWAY
CLOSED
LANES
RIGHT X
CLOSED
LANES
VARIOUS
AT SH XXX
CLOSED
ROAD
FM XXXX
CLSD AT
ROAD
CLOSED
LANE
CENTER
CLOSURES
LANE
NIGHT
CLOSED
DRIVEWAY
MALL
BC(6)-14
8-14
of this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER:FILE:DATE:SHEET 7 OF 12
CONCRETE TRAFFIC BARRIER (CTB)
LOW PROFILE CONCRETE BARRIER (LPCB)
16"
DELINEATION OF END TREATMENTS
BARRIER REFLECTORS FOR CONCRETE TRAFFIC BARRIER AND ATTENUATORS
treatments and manufacturers.
the CWZTCD List for approved end
Highway Research Report 350. Refer to
as defined in the National Cooperative
zones shall meet crashworthy standards
End treatments used on CTB’s in work
END TREATMENTS FOR
CTB’S USED
IN WORK ZONES
WARNING LIGHTS
1. Warning lights shall meet the requirements of the TMUTCD.
2. Warning lights shall NOT be installed on barricades.
3. Type A-Low Intensity Flashing Warning Lights are commonly used with drums. They are intended to warn of or mark a potentially hazardous
4. Type-C and Type D 360 degree Steady Burn Lights are intended to be used in a series for delineation to supplement other traffic control
devices. Their use shall be as indicated on this sheet and/or other sheets of the plans by the designation "SB".
5. The Engineer/Inspector or the plans shall specify the location and type of warning lights to be installed on the traffic control devices.
6. When required by the Engineer, the Contractor shall furnish a copy of the warning lights certification. The warning light manufacturer will
certify the warning lights meet the requirements of the latest ITE Purchase Specifications for Flashing and Steady-Burn Warning Lights.
WARNING LIGHTS MOUNTED ON PLASTIC DRUMS
1. Type A flashing warning lights are intended to warn drivers that they are approaching or are in a potentially hazardous area.
2. Type A random flashing warning lights are not intended for delineation and shall not be used in a series.
3. A series of sequential flashing warning lights placed on channelizing devices to form a merging taper may be used for delineation. If used,
the successive flashing of the sequential warning lights should occur from the beginning of the taper to the end of the merging taper in
order to identify the desired vehicle path. The rate of flashing for each light shall be 65 flashes per minute, plus or minus 10 flashes.
4. Type C and D steady-burn warning lights are intended to be used in a series to delineate the edge of the travel lane on detours, on lane
changes, on lane closures, and on other similar conditions.
5. Type A, Type C and Type D warning lights shall be installed at locations as detailed on other sheets in the plans.
6. Warning lights shall not be installed on a drum that has a sign, chevron or vertical panel.
7. The maximum spacing for warning lights on drums should be identical to the channelizing device spacing.
1. A warning reflector or approved substitute may be mounted on a plastic drum as a substitute for a Type C, steady burn warning light at the
discretion of the Contractor unless otherwise noted in the plans.
2. The warning reflector shall be yellow in color and shall be manufactured using a sign substrate approved for use with plastic drums listed
on the CWZTCD.
3. The warning reflector shall have a minimum retroreflective surface area (one-side) of 30 square inches.
4. Round reflectors shall be fully reflectorized, including the area where attached to the drum.
5. Square substrates must have a minimum of 30 square inches of reflectorized sheeting. They do not have to be reflectorized where it
attaches to the drum.
6. The side of the warning reflector facing approaching traffic shall have sheeting meeting the color and retroreflectivity requirements for
7. When used near two-way traffic, both sides of the warning reflector shall be reflectorized.
8. The warning reflector should be mounted on the side of the handle nearest approaching traffic.
9. The maximum spacing for warning reflectors should be identical to the channelizing device spacing requirements.
WARNING REFLECTORS MOUNTED ON PLASTIC DRUMS AS A SUBSTITUTE FOR TYPE C (STEADY BURN) WARNING LIGHTS
Reflectors
Barrier
3. Where traffic is on one side of the CTB, two (2) Barrier Reflectors
shall be mounted in approximately the midsection of each section of CTB.
An alternate mounting location is uniformly spaced at one end of each
CTB. This will allow for attachment of a barrier grapple without
damaging the reflector. The Barrier Reflector mounted on the side of
the CTB shall be located directly below the reflector mounted on top of
the barrier, as shown in the detail above.
4. Where CTB separates two-way traffic, three barrier reflectors shall be
mounted on each section of CTB. The reflector unit on top shall have
two yellow reflective faces (Bi-Directional)while the reflectors on each
side of the barrier shall have one yellow reflective face, as shown in
the detail above.
5. When CTB separates traffic traveling in the same direction, no barrier
reflectors will be required on top of the CTB.
6. Barrier Reflector units shall be yellow or white in color to match
the edgeline being supplemented.
7. Maximum spacing of Barrier Reflectors is forty (40) feet.
8. Pavement markers or temporary flexible-reflective roadway marker tabs
shall NOT be used as CTB delineation.
9. Attachment of Barrier Reflectors to CTB shall be per manufacturer’s
recommendations.
10.Missing or damaged Barrier Reflectors shall be replaced as directed
by the Engineer.
11.Single slope barriers shall be delineated as shown on the above detail.
See D & OM (VIA)
recommendations.
as per manufacturer’s
3 Barrier Reflectors
Install a minimum of
TRUCK-MOUNTED ATTENUATORS
Type C Warning Light or
approved substitute mounted on a
drum adjacent to the travel way.
4. The Flashing Arrow Board should be able to display the following symbols:
control devices that should be used in conjunction with the Flashing Arrow Board.
3. The Engineer/Inspector shall choose all appropriate signs, barricades and/or other traffic
or work on shoulders unless the "CAUTION" display (see detail below) is used.
2. Flashing Arrow Boards should not be used on two-lane, two-way roadways, detours, diversions
moving maintenance or construction activities on the travel lanes.
1. The Flashing Arrow Board should be used for all lane closures on multi-lane roadways, or slow
to bottom of panel.
14. Minimum mounting height of trailer mounted Arrow Boards should be 7 feet from roadway
flash rate and dimming requirements on this sheet for the same size arrow.
13. A full matrix PCMS may be used to simulate a Flashing Arrow Board provided it meets visibility,
12. A Flashing Arrow Board SHALL NOT BE USED to laterally shift traffic.
11. The Flashing Arrow Board shall be mounted on a vehicle, trailer or other suitable support.
display may be used during daylight operations.
10. The flashing arrow display is the TxDOT standard; however, the sequential Chevron
9. The sequential arrow display is NOT ALLOWED.
intervals of 25 percent for each sequential phase of the flashing chevron.
8. Minimum lamp "on time" shall be approximately 50 percent for the flashing arrow and equal
The flashing rate of the lamps shall not be less than 25 nor more than 40 flashes per minute.
7. The Flashing Arrow Board shall be capable of minimum 50 percent dimming from rated lamp voltage.
6. The straight line caution display is NOT ALLOWED.
Diamond Caution mode as shown.
5. The "CAUTION" display consists of four corner lamps flashing simultaneously, or the Alternating
REQUIREMENTS
C 48 x 96 15 1 mile
B 30 x 60 13 3/4 mile
MINIMUM
TRAFFIC BARRIER OR GUARDRAIL.
ARROW BOARD BEHIND CONCRETE
RIGHT-OF-WAY OR PLACE THE
THE ARROW BOARD FROM THE
WHEN NOT IN USE, REMOVE
shall be equipped with
automatic dimming devices.
Flashing Arrow Boards
devices placed perpendicular to traffic on the upstream side of traffic.
taper or merging taper, otherwise they shall be delineated with four (4) channelizing
Arrow Boards may be located behind channelizing devices in place for a shoulder
ATTENTION
LEFT & RIGHT
CHEVRON ARROWLEFT & RIGHT
ALTERNATING DIAMOND CAUTION
DOUBLE ARROW
OR
4 CORNER CAUTION
FLASHING ARROW BOARDS
16" tall plastic bracket
Barrier Reflector on
manufacturer’s recommendations.
Attach the delineators as per
reflectors is 20 feet.
Max. spacing of barrier
extended distance from the TMA.
area is spread down the roadway and the work crew is an
6. The only reason a TMA should not be required is when a work
without adversely affecting the work performance.
30 to 100 feet in advance of the area of crew exposure
5. A TMA should be used anytime that it can be positioned
in the plans.
4. TMAs are required on freeways unless otherwise noted
3. Refer to the CWZTCD for a list of approved TMAs.
Level 3 TMAs.
2. Refer to the CWZTCD for the requirements of Level 2 or
or the Manual for Assessing Safety Hardware (MASH).
Cooperative Highway Research Report No. 350 (NCHRP 350)
must meet the requirements outlined in the National
1. Truck-mounted attenuators (TMA) used on TxDOT facilities
8. The location of warning lights and warning reflectors on drums shall be as shown elsewhere in the plans.
7. When used to delineate curves, Type-C and Type D Steady Burn Lights should only be placed on the outside of the curve, not the inside.
DMS 8300-Type B or Type C.
30 square inches
reflective surface area of at least
or square.Must have a yellow
Warning reflector may be round
FL FL
area. Their use shall be as indicated on this sheet and/or other sheets of the plans by the designation "FL". The Type A Warning Lights shall
not be used with signs manufactured with Type B or C Sheeting meeting the requirements of Departmental Material Specification DMS-8300.
BC(7)-14
7-13
WARNING LIGHTS & ATTENUATOR
ARROW PANEL, REFLECTORS,
BARRICADE AND CONSTRUCTION
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Standard
Division
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Traffic
9-07
1. Barrier Reflectors shall be pre-qualified, and conform to the color and
reflectivity requirements of DMS-8600. A list of prequalified Barrier
Reflectors can be found at the Material Producer List web address
shown on BC(1).
2. Color of Barrier Reflectors shall be as specified in the TMUTCD. The
cost of the reflectors shall be considered subsidiary to Item 512.
8-14
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bc-14.dgn
November 2002
SHEET 8 OF 12
4-03
9-07
mount with diagonals
sloping down towards
travel way
(Maximum Sign Dimension)
18" x 24" Sign
1. For long term stationary work zones on freeways, drums shall be used as
the primary channelizing device.
2. For intermediate term stationary work zones on freeways, drums should be
used as the primary channelizing device but may be replaced in tangent
sections by vertical panels, or 42" two-piece cones. In tangent sections
if personnel are present on the project at all times to maintain the
cones in proper position and location.
3. For short term stationary work zones on freeways, drums are the preferred
approved by the Engineer.
4. Drums and all related items shall comply with the requirements of the
current version of the "Texas Manual on Uniform Traffic Control Devices"
(TMUTCD) and the "Compliant Work Zone Traffic Control Devices List"
(CWZTCD).
5. Drums, bases, and related materials shall exhibit good workmanship and
shall be free from objectionable marks or defects that would adversely
6. The Contractor shall have a maximum of 24 hours to replace any plastic
drums identified for replacement by the Engineer/Inspector. The replace-
ment device must be an approved device.
1. Plastic drums shall be a two-piece design; the "body" of the drum shall
be the top portion and the "base" shall be the bottom.
2. The body and base shall lock together in such a manner that the body
separates from the base when impacted by a vehicle traveling at a speed
of 20 MPH or greater but prevents accidental separation due to normal
handling and/or air turbulence created by passing vehicles.
3. Plastic drums shall be constructed of lightweight flexible, and
deformable materials. The Contractor shall NOT use metal drums or
single piece plastic drums as channelization devices or sign supports.
4. Drums shall present a profile that is a minimum of 18 inches in width
at the 36 inch height when viewed from any direction. The height of
drum unit (body installed on base) shall be a minimum of 36 inches and
a maximum of 42 inches.
5. The top of the drum shall have a built-in handle for easy pickup and
shall be designed to drain water and not collect debris. The handle
shall have a minimum of two widely spaced 9/16 inch diameter holes to
allow attachment of a warning light, warning reflector unit or approved
compliant sign.
6. The exterior of the drum body shall have a minimum of four alternating
orange and white retroreflective circumferential stripes not less than
4 inches nor greater than 8 inches in width. Any non-reflectorized
space between any two adjacent stripes shall not exceed 2 inches in
width.
7. Bases shall have a maximum width of 36 inches, a maximum height of 4
inches, and a minimum of two footholds of sufficient size to allow base
to be held down while separating the drum body from the base.
8. Plastic drums shall be constructed of ultra-violet stabilized, orange,
high-density polyethylene (HDPE) or other approved material.
Chevron CW1-8, Opposing Traffic Lane
Divider, Driveway sign D70a, Keep Right
channelizing device but may be replaced in tapers, transitions and tangent
one-piece cones may be used with the approval of the Engineer but only
1. Signs used on plastic drums shall be manufactured using
substrates listed on the CWZTCD.
2. Chevrons and other work zone signs with an orange background
3. Vertical Panels shall be manufactured with orange and white
4. Other sign messages (text or symbolic) may be used as
approved by the Engineer. Sign dimensions shall not exceed
5. Signs shall be installed using a 1/2 inch bolt (nominal)
and nut, two washers, and one locking washer for each
connection.
6. Mounting bolts and nuts shall be fully engaged and
adequately torqued. Bolts should not extend more than 1/2
inch beyond nuts.
7. Chevrons may be placed on drums on the outside of curves,
on merging tapers or on shifting tapers. When used in these
locations they may be placed on every drum or spaced not
more than on every third drum. A minimum of three (3)
should be used at each location called for in the plans.
approval of the Engineer.
8. R9-9, R9-10, R9-11 and R9-11a Sidewalk Closed signs which
are 24 inches wide may be mounted on plastic drums, with
Vertical Panel
12" x 24"
ON PLASTIC DRUMS
SIGNS, CHEVRONS, AND VERTICAL PANELS MOUNTED
by Engineer
R4 series or other signs as approved
GENERAL DESIGN REQUIREMENTS
GENERAL NOTES
1. The stripes used on drums shall be constructed of sheeting meeting the
1. Unballasted bases shall be large enough to hold up to 50 lbs. of sand.
This base, when filled with the ballast material, should weigh between
35 lbs (minimum) and 50 lbs (maximum). The ballast may be sand in one
to three sandbags separate from the base, sand in a sand-filled plastic
base, or other ballasting devices as approved by the Engineer. Stacking
of sandbags will be allowed, however height of sandbags above pavement
surface may not exceed 12 inches.
2. Bases with built-in ballast shall weigh between 40 lbs. and 50 lbs.
Built-in ballast can be constructed of an integral crumb rubber base or
a solid rubber base.
would become hazardous to motorists, pedestrians, or workers when the
drum is struck by a vehicle.
holes in the bottoms so that water will not collect and freeze becoming
a hazard when struck by a vehicle.
color and retroreflectivity requirements of Departmental Materials
2. The sheeting shall be suitable for use on and shall adhere to the drum
surface such that, upon vehicular impact, the sheeting shall remain
adhered in-place and exhibit no delaminating, cracking, or loss of
retroreflectivity other than that loss due to abrasion of the sheeting
surface.
24"
36"8"
12"
4" White
4" Orange
45o
CW1-6L
18" minHandle
36" min42" max4" max
4" max(typ)
8" max
4" min
(typ.)
2" max
dia. max)
Base (36"
drums
minimum of 5
for stacking a
Taper to allow
debris
of water or
allow collection
Top should not
warning lights
signs and
for mounting
9/16" dia. (typ)
DIRECTION INDICATOR BARRICADE DETECTABLE PEDESTRIAN BARRICADES
BALLAST
RETROREFLECTIVE SHEETING
10.Drum and base shall be marked with manufacturer’s name and model number.
sections by vertical panels, two-piece cones or one-piece cones as
plastic drums
substrates shall NOT be used on
Plywood, Aluminum or Metal sign
36"
Barricades
Detectable Pedestrian
providers of approved
and the CWZTCD list for
for fabrication. See note 3
This detail is not intended
rail for hand trailing
Continuous smooth
Detectable Edge
2" Max.
trailing with no splinters, burrs, or sharp edges.
rail provides a smooth continuous rail suitable for hand
barricade rails as shown on BC(10) provided that the top
6. Detectable pedestrian barricades may use 8" nominal
barricades.
5. Warning lights shall not be attached to detectable pedestrian
as a control for pedestrian movements.
for Buildings and Facilities (ADAAG)" and should not be used
"Americans with Disabilities Act Accessibility Guidelines
detectable, do not comply with the design standards in the
4. Tape, rope, or plastic chain strung between devices are not
path.
detectable edging can satisfactorily delineate a pedestrian
barriers, and wood or chain link fencing with a continuous
above, longitudinal channelizing devices, some concrete
3. Detectable pedestrian barricades similar to the one pictured
shall be placed across the full width of the closed sidewalk.
with a visual disability traveling with the aid of a long cane
closed sidewalk, a device that is detectable by a person
2. Where pedestrians with visual disabilities normally use the
the features present in the existing pedestrian facility.
detectable and include accessibility features consistent with
relocated in a TTC zone, the temporary facilities shall be
1. When existing pedestrian facilities are disrupted, closed, or
9. Drum body shall have a maximum unballasted weight of 11 lbs.
for this type of ballast on the CWZTCD list.
3. Recycled truck tire sidewalls may be used for ballast on drums approved
4. The ballast shall not be heavy objects, water, or any material that
5. When used in regions susceptible to freezing, drums shall have drainage
6. Ballast shall not be placed on top of drums.
7. Adhesives may be used to secure base of drums to pavement.
series signs discussed in note 8 below.
18 inches in width or 24 inches in height, except for the R9
Specification DMS-8300, "Sign Face Materials." Type A reflective
sheeting shall be supplied unless otherwise specified in the plans.
FL
the intended traveled lane.
Diagonal stripes on Vertical Panels shall slope down toward
sheeting meeting the requirements of DMS-8300 Type A
FL
Ballast shall be as approved by the manufacturers instructions.
5. Approved manufacturers are shown on the CWZTCD List.
allowed.
4. Double arrows on the Direction Indicator Barricade will not be
shall be as per DMS 8300.
45 degrees in the direction road users are to pass. Sheeting types
white and orange stripes sloping downward at an angle of
above a rail with Type A retroreflective sheeting in alternating 4"
on a background of Type B or Type C Orange retroreflective sheeting
Large Arrow (CW1-6) sign in the size shown with a black arrow
3. The Direction Indicator Barricade shall consist of One-Direction
the intended travel lane.
in series to direct the driver through the transition and into
2. If used, the Direction Indicator Barricade should be used
guidance to drivers is necessary.
transitions, and other areas where specific directional
1. The Direction Indicator Barricade may be used in tapers,
FL
FL
specified in the plans.
of DMS-8300, "Sign Face Material," unless otherwise
sheeting meeting the color and retroreflectivity requirements
shall be manufactured with Type B or Type C Orange
being orange.
with the top stripe
reflective sheeting
using Type A retro-
and 2 white stripes
a minimum of 2 orange
Each drum shall have
7-13
CHANNELIZING DEVICES
BARRICADE AND CONSTRUCTION
FILE:DATE:102
Standard
Division
Operations
Traffic
Pre-qualified plastic drums shall meet the following requirements:of this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER: affect their appearance or serviceability.
BC(8)-14
8-14
of this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER:FILE:DATE:SHEET 9 OF 1224" min.36" min. distance above travel way45
VP-1L VP-1R
o
45o
36"
12"
36"
18"
18"
4"
4"
4"
4"
4"
4"
4"
4"
4"
DRIVEABLE
PORTABLE
FIXED
(Rigid or self-righting)
(Rigid or self-righting)
1. Work Zone channelizing devices illustrated on this sheet may be installed
in close proximity to traffic and are suitable for use on high or low
speed roadways. The Engineer/Inspector shall ensure that spacing and
placement is uniform and in accordance with the "Texas Manual on Uniform
Traffic Control Devices" (TMUTCD).
2. Channelizing devices shown on this sheet may have a driveable, fixed or
portable base. The requirement for self-righting channelizing devices must
be specified in the General Notes or other plan sheets.
3. Channelizing devices on self-righting supports should be used in work zone
areas where channelizing devices are frequently impacted by errant vehicles
or vehicle related wind gusts making alignment of the channelizing devices
difficult to maintain. Locations of these devices shall be detailed else-
where in the plans. These devices shall conform to the TMUTCD and the
"Compliant Work Zone Traffic Control Devices List" (CWZTCD).
damaged, nonreflective, faded, or broken devices and bases as required by
the Engineer/Inspector. The Contractor shall be required to maintain proper
device spacing and alignment.
5. Portable bases shall be fabricated from virgin and/or recycled rubber. The
6. Pavement surfaces shall be prepared in a manner that ensures proper bonding
between the adhesives, the fixed mount bases and the pavement surface.
Adhesives shall be prepared and applied according to the manufacturer’s
recommendations.
7. The installation and removal of channelizing devices shall not cause
detrimental effects to the final pavement surfaces, including pavement
permitted on final pavement surfaces. The Engineer/Inspector shall approve
all application and removal procedures of fixed bases.
1. Opposing Traffic Lane Dividers (OTLD) are
delineation devices designed to convert a
normal one-way roadway section to two-way
operation. OTLD’s are used on temporary
centerlines. The upward and downward arrows
on the sign’s face indicate the direction of
traffic on either side of the divider. The
3. Spacing between the OTLD shall not exceed 500
the OTLD’s should not exceed 100 foot spacing.
4. The OTLD shall be orange with a black non-
reflective legend. Sheeting for the OTLD shall
1. The chevron shall be a vertical rectangle with a
minimum size of 12 by 18 inches.
2. Chevrons are intended to give notice of a sharp
change of alignment with the direction of travel
and provide additional emphasis and guidance for
vehicle operators with regard to changes in
horizontal alignment of the roadway.
3. Chevrons, when used, shall be erected on the out-
side of a sharp curve or turn, or on the far side
of an intersection. They shall be in line with
and at right angles to approaching traffic.
Spacing should be such that the motorist always
has three in view, until the change in alignment
eliminates its need.
4. To be effective, the chevron should be visible
for at least 500 feet.
5. Chevrons shall be orange with a black nonreflec-
tive legend. Sheeting for the chevron shall be
6. For Long Term Stationary use on tapers or
transitions on freeways and divided highways
self-righting chevrons may be used to supplement
plastic drums but not to replace plastic drums.
4. The Contractor shall maintain devices in a clean condition and replace
surface discoloration or surface integrity. Driveable bases shall not be
1. Vertical Panels (VP’s) are normally used to channelize
traffic or divide opposing lanes of traffic.
2. VP’s may be used in daytime or nighttime situations.
They may be used at the edge of shoulder drop-offs and
other areas such as lane transitions where positive
daytime and nighttime delineation is required. The
Engineer/Inspector shall refer to the Roadway Design
Manual Appendix B "Treatment of Pavement Drop-offs in
Work Zones" for additional guidelines on the use of
VP’s for drop-offs.
3. VP’s should be mounted back to back if used at the edge
of cuts adjacent to two-way two lane roadways. Stripes
are to be reflective orange and reflective white and
should always slope downward toward the travel lane.
of retroreflective area facing traffic.
5. Self-righting supports are available with portable base.
See "Compliant Work Zone Traffic Control Devices List"
(CWZTCD).
CW6-4
8" to 12"8" to 12"8" to 12"8" to 12"
8" to 12"
WATER BALLASTED SYSTEMS USED AS BARRIERS
1. Water ballasted systems used as barriers shall not be used solely to channelize road users, but also to protect the
work space per the appropriate NCHRP 350 crashworthiness requirements based on roadway speed and barrier application.
2. Water ballasted systems used to channelize vehicular traffic shall be supplemented with retroreflective delineation
or channelizing devices to improve daytime/nighttime visibility. They may also be supplemented with pavement markings.
3. Water ballasted systems used as barriers shall be placed in accordance to application and installation requirements
specific to the device, and used only when shown on the CWZTCD list.
4. Water ballasted systems used as barriers should not be used for a merging taper except in low speed (less than 45 MPH)
urban areas. When used on a taper in a low speed urban area, the taper shall be delineated and the taper length
should be designed to optimize road user operations considering the available geometric conditions.
5. When water ballasted systems used as barriers have blunt ends exposed to traffic, they should be attenuated
Surface
Roadway
Base
Mount
Surface
min.
24"
min.
24"
Adhesive
w/ Approved
Fixed Base
depth
embedment
12" minimum
min.
36"
Support
Self-righting
Support
Rigid
Support can be used)
(Driveable Base, or Flexible
Fixed Base w/ Approved Adhesive
on drums.
mounted
or may be
may be used,
Driveable Base
Fixed or
Portable,
back to back
mounted
Panels
speed roadways, may have more than 270 square inches
unless noted otherwise.
conforming to Departmental Material Specification DMS-8300,
GENERAL NOTES
Taper lengths have been rounded off.
S=Posted Speed (MPH)
L=Length of Taper (FT.) W=Width of Offset (FT.) **
2
***
75 750’
720’
825’900’75’
60’
70’
80’
90’
100’
110’
120’
130’
140’
150’
30’
35’
40’
45’
50’
55’
60’
65’
70’
150’
205’
265’
450’
500’
550’
600’
165’
225’
295’
495’
550’
605’
660’
180’
320’
600’
660’
650’715’780’
245’
540’
700’770’840’
30
35
40
45
50
55
60
65
70
60
WSL=
Posted
Speed
On a
Tangent
On a
Taper
12’
OffsetOffset
11’
Offset
10’
Minimum
Desirable
Taper Lengths
Suggested Maximum
Spacing of
Channelizing
Devices
Formula
L=WS
80 800’880’960’80’160’
LONGITUDINAL CHANNELIZING DEVICES (LCD)
2. LCDs may be used instead of a line of cones or drums.
used only when shown on the CWZTCD list.
3. LCDs shall be placed in accordance to application and installation requirements specific to the device, and
4. LCDs should not be used to provide positive protection for obstacles, pedestrians or workers.
connected together. They are not designed to contain or redirect a vehicle on impact.
1. LCDs are crashworthy, lightweight, deformable devices that are highly visible, have good target value and can be
adhesive or rubber weight to minimize movement
base is secured to the pavement with an
caused by a vehicle impact or wind gust.
portable bases shall weigh a minimum of 30 lbs.
6. Sheeting for the VP’s shall be retroreflective Type A
FL
FL
as per manufacturer recommendations or flared to a point outside the clear zone.
of the unit shall not be less than 32 inches in height.
systems must have a continuous detectable bottom for users of long canes and the top
If used to channelize pedestrians, longitudinal channelizing devices or water ballasted
2. The OTLD may be used in combination with 42"
cones or VPs.
feet. 42" cones or VPs placed between
the requirements of DMS-8300.
unless noted otherwise. The legend shall meet
to Departmental Material Specification DMS-8300,
be retroreflective Type B or Type C conforming FL
requirements of DMS-8300.
unless noted otherwise. The legend shall meet the
Departmental Material Specification DMS-8300,
retroreflective Type B or Type C conforming to FL
Min.
18"
12"
note 7
See
note 7
See
note 7
See
CHEVRONS
VERTICAL PANELS (VPs)
HOLLOW OR WATER BALLASTED SYSTEMS USED AS
LONGITUDINAL CHANNELIZING DEVICES OR BARRIERSOPPOSING TRAFFIC LANE DIVIDERS (OTLD)
MINIMUM DESIRABLE TAPER LENGTHS
CHANNELIZING DEVICES AND
SUGGESTED MAXIMUM SPACING OF
7. Where the height of reflective material on the vertical
6 inches shall be used.
panel is 36 inches or greater, a panel stripe of
4. VP’s used on expressways and freeways or other high
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CHANNELIZING DEVICES
BARRICADE AND CONSTRUCTION
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103
Standard
Division
Operations
Traffic
9-07
LCD along the full length of the device.
sheeting meeting the requirements for barricade rails as shown on BC(10) placed near the top of the
6. LCDs used as barricades placed perpendicular to traffic should have at least one row of reflective
on BC(7) when placed roughly parallel to the travel lanes.
5. LCDs shall be supplemented with retroreflective delineation as required for temporary barriers
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SHEET 10 OF 12
9-07
2" max.3"-4"
1. Where positive redirectional
2. Plastic construction fencing
safety as required in the plans.
3. Vertical Panels on flexible support
capability is provided, drums
may be omitted.SB
SB
SB
SB
6" min.
4" min.
3" min.
3" min.
may be used with drums for
may be omitted if drums are used.
Detour
Roadway
R11-2
M4-10L DETOUR
ROAD
CLOSED
NAME
ADDRESS
CITY
STATE
CONTRACTOR
30 feet
2" min.
3"-4"
6" min.
4" min.
2" min.
shoulder width is less than 4 feet.
than 12 feet, steady-burn lights
42"
4"
4"
4"
4"
2"
2"
2"EDGELINE
CHANNELIZER
PLAN VIEW
PLAN VIEW
2. Advance signing shall be as specified elsewhere in the plans.
PERSPECTIVE VIEW
PERSPECTIVE VIEW
3"-4"
2" min.
10’
may be substituted for drums when the
4. When the shoulder width is greater
1. This device is intended only for use in place of a vertical panel to
2" min.
2" min.
4" min. orange
4" min. white
4" min. orange
4" min. white
Drums, vertical panels or 42" cones
STOCKPILE
channelize traffic by indicating the edge of the travel lane. It is
not intended to be used in transitions or tapers.
2. This device shall not be used to separate lanes of traffic (opposing
or otherwise) or warn of objects.
3. This device is based on a 42 inch, two-piece cone with an alternate
striping pattern: four 4 inch retroreflective bands, with an
approximate 2 inch gap between bands. The color of the band should
correspond to the color of the edgeline (yellow for left edgeline,
white for right edgeline) for which the device is substituted or for
which it supplements. The reflectorized bands shall be retroreflective
at 50’ maximum spacing
omitted here
or barricade may be
downstream drums
On one-way roads
within 30’ from travel lane.
should be used when stockpile is
Channelizing devices parallel to traffic
Two-Piece cones One-Piece cones Tubular Marker
G20-6T
SB
CONES
3" to 4"
2" to 6"
Alternate
Alternate
clear zone.
is outside
stockpile location
Desirable
Plastic Drum
Typical
min.
28"
min.
28"
min.
28"min.
42"
on one-way roadway
are not required
These drums
barricaded in the same manner.
divided highway shall be
Each roadway of a
and maximum of 4 drums)
width makes it necessary. (minimum of 2
side of approaching traffic if the crown
Increase number of plastic drums on the
be used across the work area.A minimum of two drums shall50’
Approx.
50’
Approx.
1. Refer to the Compliant Work Zone Traffic Control Devices List (CWZTCD)
projects closed to all traffic.
3. Barricades extending across a roadway should have stripes that slope
downward in the direction toward which traffic must turn in detouring.
When both right and left turns are provided, the chevron striping may
slope downward in both directions from the center of the barricade.
Where no turns are provided at a closed road striping should slope
downward in both directions toward the center of roadway.
4. Striping of rails, for the right side of the roadway, should slope
downward to the left. For the left side of the roadway, striping
should slope downward to the right.
5. Identification markings may be shown only on the back of the
barricade rails. The maximum height of letters and/or company logos
used for identification shall be 1".
6. Barricades shall not be placed parallel to traffic unless an adequate
clear zone is provided.
7. Warning lights shall NOT be installed on barricades.
8. Where barricades require the use of weights to keep from turning over,
the use of sandbags with dry, cohesionless sand is recommended. The
sandbags will be tied shut to keep the sand from spilling and to
maintain a constant weight. Sand bags shall not be stacked in a manner
that covers any portion of a barricade rails reflective sheeting.
Rock, concrete, iron, steel or other solid objects will NOT be
permitted. Sandbags should weigh a minimum of 35 lbs and a maximum of
50 lbs. Sandbags shall be made of a durable material that tears upon
vehicular impact. Rubber (such as tire inner tubes) shall not be used
for sandbags. Sandbags shall only be placed along or upon the base
supports of the device and shall not be suspended above ground level
or hung with rope, wire, chains or other fasteners.
be used as a sign support.
Barricades shall NOT 10’ max.10’ max.10’ max.4. The base must weigh a minimum of 30 lbs.
or yellow warning reflector
Steady burn warning light
or yellow warning reflector
Plastic drum with steady burn light
Plastic drum
LEGEND
of the culvert widening.
5. Drums must extend the length
30 lbs. including base.
42" 2-piece cones shall have a minimum weight of
28" Cones shall have a minimum weight of 9 1/2 lbs.
CULVERT WIDENING OR OTHER ISOLATED WORK WITHIN THE PROJECT LIMITS
TRAFFIC CONTROL FOR MATERIAL STOCKPILES
TYPICAL PANEL DETAIL
FOR SKID OR POST TYPE BARRICADES
TYPICAL STRIPING DETAIL FOR BARRICADE RAIL
8’ max. length Type 3 Barricades
downward in the direction of detour.
Barricade striping should slant
for two-way traffic.
facing one-way traffic and both sides
reflective white stripes on one side
shall be reflectorized orange and
The three rails on Type 3 barricades
barricade
or 1 Type 3
Min. 2 drums
barricade
or 1 Type 3
Min. 2 drums
TYPE 3 BARRICADES
2. Type 3 Barricades shall be used at each end of construction
TYPE 3 BARRICADE (POST AND SKID) TYPICAL APPLICATION
minimum of 10 feet behind Type 3 Barricades.
mounting height in center of roadway. The signs should be a
1. Signs should be mounted on independent supports at a 7 foot
1. Traffic cones and tubular markers shall be predominantly orange, and
meet the height and weight requirements shown above.
2. One-piece cones have the body and base of the cone molded in one consolidated
unit. Two-piece cones have a cone shaped body and a separate rubber base,
or ballast, that is added to keep the device upright and in place.
height shown, in order to aid in retrieving the device.
3. Two-piece cones may have a handle or loop extending up to 8" above the minimum
reflective bands as shown above. The reflective bands shall have a smooth, sealed
7. Cones or tubular markers used on each project should be of the same size
and shape.
to maintain them in their proper upright position.
for intermediate-term or long-term stationary work unless personnel is on-site
short-term stationary work as defined on BC(4). These should not be used
5. 28" cones and tubular markers are generally suitable for short duration and
durations.
6. 42" two-piece cones, vertical panels or drums are suitable for all work zone
4. Cones or tubular markers used at night shall have white or white and orange
DMS-8300 Type A.
outer surface and meet the requirements of Departmental Material Specification
unless otherwise noted.
Type A conforming to Departmental Material Specification DMS-8300,
45o
6"6"7 inches.
Sheeting
Reflective
Width of
Minimum
nominal
8"
7-13
Standard
Division
Operations
Traffic
PROJECTS LET AFTER MARCH 2014.
THIS DEVICE SHALL NOT BE USED ON
BC(10)-14
CHANNELIZING DEVICES
BARRICADE AND CONSTRUCTIONof this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER:FILE:DATE:
to Departmental Material Specification DMS-8300 unless otherwise noted.
9. Sheeting for barricades shall be retroreflective Type A conforming
for details of the Type 3 Barricades and a list of all materials
used in the construction of Type 3 Barricades.20"20"48"Flat rail
Stiffener
2 stiffeners shall be allowed on one barricade.
Stiffener may be inside or outside of support, but no more than
4’ min., 8’ max.
8-14
of this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER:FILE:DATE:SHEET 11 OF 12
TOP VIEW FRONT VIEW SIDE VIEW
Adhesive pad
4"+ "
2"
GENERAL REMOVAL OF PAVEMENT MARKINGS
1. The Contractor shall be responsible for maintaining work zone and
within the CSJ limits unless otherwise stated in the plans.
2. Color, patterns and dimensions shall be in conformance with the
"Texas Manual on Uniform Traffic Control Devices" (TMUTCD).
3. Additional supplemental pavement marking details may be found in the
plans or specifications.
4. Pavement markings shall be installed in accordance with the TMUTCD
and as shown on the plans.
5. When short term markings are required on the plans, short term
markings shall conform with the TMUTCD, the plans and details as
shown on the Standard Plan Sheet WZ(STPM).
6. When standard pavement markings are not in place and the roadway
is opened to traffic, DO NOT PASS signs shall be erected to mark
the beginning of the sections where passing is prohibited and
PASS WITH CARE signs at the beginning of sections where passing
is permitted.
7. All work zone pavement markings shall be installed in accordance
with Item 662, "Work Zone Pavement Markings."
RAISED PAVEMENT MARKERS
1. Raised pavement markers are to be placed according to the patterns
on BC(12).
2. All raised pavement markers used for work zone markings shall meet
PREFABRICATED PAVEMENT MARKINGS
1. Removable prefabricated pavement markings shall meet the requirements
of DMS-8241.
2. Non-removable prefabricated pavement markings (foil back) shall meet
the requirements of DMS-8240.
MAINTAINING WORK ZONE PAVEMENT MARKINGS
1. The Contractor will be responsible for maintaining work zone pavement
markings within the work limits.
2. Work zone pavement markings shall be inspected in accordance with
the frequency and reporting requirements of work zone traffic control
device inspections as required by Form 599.
3. The markings should provide a visible reference for a minimum
distance of 300 feet during normal daylight hours and 160 feet when
illuminated by automobile low-beam headlights at night, unless sight
distance is restricted by roadway geometrics.
4. Markings failing to meet this criteria within the first 30 days after
placement shall be replaced at the expense of the Contractor as per
Specification Item 662.
days, where flaggers and/or sufficient channelizing devices are used
in lieu of markings to outline the detour route.
3. Pavement markings shall be removed to the fullest extent possible,
so as not to leave a discernable marking. This shall be by any method
approved by TxDOT Specification Item 677 for "Eliminating Existing
Pavement Markings and Markers".
4. The removal of pavement markings may require resurfacing or seal
5. Subject to the approval of the Engineer, any method that proves to be
successful on a particular type pavement may be used.
6. Blast cleaning may be used but will not be required unless specifically
7. Over-painting of the markings SHALL NOT BE permitted.
8. Removal of raised pavement markers shall be as directed by the
Engineer.
9. Removal of existing pavement markings and markers will be paid for
directly in accordance with Item 677, "ELIMINATING EXISTING PAVEMENT
MARKINGS AND MARKERS," unless otherwise stated in the plans.
10.Black-out marking tape may be used to cover conflicting existing
markings for periods less than two weeks when approved by the Engineer.
1. Temporary flexible-reflective roadway marker tabs used as guidemarks
shall meet the requirements of DMS-8242.
2. Tabs detailed on this sheet are to be inspected and accepted by the
Engineer or designated representative. Sampling and testing is not
normally required, however at the option of the Engineer, either "A"
or "B" below may be imposed to assure quality before placement on the
roadway.
B. Select five (5) tabs and perform the following test. Affix five
(5) tabs at 24 inch intervals on an asphaltic pavement in a
straight line. Using a medium size passenger vehicle or pickup,
run over the markers with the front and rear tires at a speed
of 35 to 40 miles per hour, four (4) times in each direction. No
more than one (1) out of the five (5) reflective surfaces shall
be lost or displaced as a result of this test.
3. Small design variances may be noted between tab manufacturers.
4. See Standard Sheet WZ(STPM) for tab placement on new pavements. See
1. Raised pavement markers used as guidemarks shall be from the approved
product list, and meet the requirements of DMS-4200.
3. Adhesive for guidemarks shall be bituminous material hot applied or
butyl rubber pad for all surfaces, or thermoplastic for concrete
surfaces.
Guidemarks shall be designated as:
YELLOW - (two amber reflective surfaces with yellow body).
WHITE - (one silver reflective surface with white body).
Standard Sheet TCP(7-1) for tab placement on seal coat work.
TABS TO THE PAVEMENT SURFACE
TEMPORARY FLEXIBLE-REFLECTIVE ROADWAY MARKER
STAPLES OR NAILS SHALL NOT BE USED TO SECURE
1/4" and less than 1".
is usually more than
Height of sheeting
WORK ZONE PAVEMENT MARKINGS Roadway Marker Tabs
Temporary Flexible-Reflective
DEPARTMENTAL MATERIAL SPECIFICATIONS
DMS-6130
EPOXY AND ADHESIVES DMS-6100
DMS-4300
DMS-8240
DMS-8241
DMS-8242
DMS-4200
TRAFFIC BUTTONS
PERMANENT PREFABRICATED PAVEMENT MARKINGS
PAVEMENT MARKINGS
TEMPORARY REMOVABLE, PREFABRICATED
ROADWAY MARKER TABS
TEMPORARY FLEXIBLE, REFLECTIVE
A list of prequalified reflective raised pavement markers,
non-reflective traffic buttons, roadway marker tabs and other
pavement markings can be found at the Material Producer List
web address shown on BC(1).
BITUMINOUS ADHESIVE FOR PAVEMENT MARKERS
PAVEMENT MARKERS (REFLECTORIZED)
RAISED PAVEMENT MARKERS USED AS GUIDEMARKS
project shall be of the same manufacturer.
2. All temporary construction raised pavement markers provided on a
the requirements of Item 672, "RAISED PAVEMENT MARKERS" and Departmental
Material Specification DMS-4200 or DMS-4300.
shown in the plans.
existing pavement markings, in accordance with the standard
specifications and special provisions, on all roadways open to traffic
1. Pavement markings that are no longer applicable, could create confusion
or direct a motorist toward or into the closed portion of the roadway
shall be removed or obliterated before the roadway is opened to traffic.
Section to determine specification compliance.
and submit to the Construction Division, Materials and Pavement
A. Select five (5) or more tabs at random from each lot or shipment
2. The above shall not apply to detours in place for less than three
coating portions of the roadway as described in Item 677.
7-13
PAVEMENT MARKINGS
BARRICADE AND CONSTRUCTION
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SHEET NO.
C TxDOT
BC(11)-14
CONT
bc-14.dgn
February 1998
105
Standard
Division
Operations
Traffic
9-07
11-02
1-02
2-98
8-14
DN:CK:DW:CK:FILE:
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TxDOT TxDOT TxDOT TxDOT
HIGHWAY
SHEET NO.
C TxDOT
CONT
bc-14.dgn
February 1998
106
SHEET 12 OF 12
9-071-97
2-98
11-02
10 to 12"
PAVEMENT MARKING PATTERNS
Yellow
Yellow
White
White
Yellow
Yellow
Yellow
Type II-A-A Type II-A-A
Type Y buttons
Type Y buttons
Type II-A-A
Type II-A-A
Type I-A
Type I-A
Type W buttons
Type I-C
Type Y buttons
Type Y buttons
Type W buttons
Type I-C
Type I-C or II-C-R
Type I-C or II-C-R 10’30’
-
-
-
DISCOURAGE LANE CHANGING.)
EDGE LINE
OR SINGLE
Yellow
White
White or Yellow
White or Yellow
NO-PASSING LINE
WIDE
LINE
(FOR LEFT TURN CHANNELIZING LINE
OR CHANNELIZING LINE USED TO
Type Y buttons
Type I-C , I-A or II-A-A Type W or Y buttons
Type I-C Type W buttons
Type I-C or II-A-A
STANDARD WORK ZONE PAVEMENT MARKINGS DETAILS
Type II-A-A
REMOVABLE MARKINGS
WITH RAISED
PAVEMENT MARKERS
Type I-C or II-A-A
(when required)
Raised Pavement Markers
If raised pavement markers are used
to supplement REMOVABLE markings,
the markers shall be applied to the
top of the tape at the approximate
mid length of tape used for broken
60" + 3"
-REFLECTORIZED PAVEMENT MARKINGS - PATTERN B
REFLECTORIZED PAVEMENT MARKINGS - PATTERN A
REFLECTORIZED PAVEMENT MARKINGS
10 to 12"
4 to 8"6 to 8"
60" + 3"
60" + 3"
4"
4 to 12"
4 to 12"
4"
8"
1-2"
10’
10’30’
40’ + 1’
5’ + 6"
20’ + 1’
30’
RAISED PAVEMENT MARKERS - PATTERN A
RAISED PAVEMENT MARKERS - PATTERN B
RAISED PAVEMENT MARKERS
Pattern A is the TXDOT Standard, however Pattern B may be used if approved by the Engineer.
lines or at 20 foot spacing for
solid lines. This allows an easier
removal of raised pavement markers
and tape.
Centerline only - not to be used on edge lines
Prefabricated markings may be substituted for reflectorized pavement markings.
Prefabricated markings may be substituted for reflectorized pavement markings.
MARKINGS
PAVEMENT
REFLECTORIZED
MARKINGS
PAVEMENT
REFLECTORIZED
LINE
NO-PASSING
DOUBLE
MARKINGS
PAVEMENT
REFLECTORIZED
MARKERS
PAVEMENT
RAISED
MARKERS
PAVEMENT
RAISED
MARKERS
PAVEMENT
RAISED
MARKERS
PAVEMENT
RAISED
Type II-A-A
3’9’
5’5’
8"
3’9’
Type I-C or II-C-R
MARKERS
PAVEMENT
RAISED
MARKERS
PAVEMENT
RAISEDLINE
LANEDROP
OR
AUXILIARY
LINE
LANE
OR
LINE
CENTER
Item 672 "RAISED PAVEMENT MARKERS."
products list and meet the requirements of
pavement markings shall be from the approved
Raised pavement markers used as standard
TWO-WAY LEFT TURN LANE
LANE & CENTER LINES FOR MULTILANE UNDIVIDED HIGHWAYS
EDGE & LANE LINES FOR DIVIDED HIGHWAY
CENTER LINE & NO-PASSING ZONE BARRIER LINES FOR TWO-LANE, TWO-WAY HIGHWAYS
LINES
SOLID
LINES
BROKEN
7-13
Standard
Division
Operations
Traffic
PAVEMENT MARKING PATTERNS
BARRICADE AND CONSTRUCTIONof this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER:FILE:DATE:Yellow
White
White
Type Y buttons
Type I-C
Type II-A-A
Type I-C
REFLECTORIZED PAVEMENT MARKINGS RAISED PAVEMENT MARKERS
Prefabricated markings may be substituted for reflectorized pavement markings.
Yellow
White
White Type Y buttonsType II-A-A
Type I-C
Type I-C
REFLECTORIZED PAVEMENT MARKINGS RAISED PAVEMENT MARKERS
Prefabricated markings may be substituted for reflectorized pavement markings.
8-14
BC(12)-14
DN:CK:DW:CK:FILE:
JOB
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SECT
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REVISIONS
HIGHWAY
SHEET NO.
C TxDOT
of this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER:CONT
FILE:DATE:Standard
Division
Operations
Traffic
30'Min.BMin.
10'Work SpaceDevices
Channelizing
(See note 2)Work Space30'Min.WORK SPACE ON SHOULDER
48" X 24"
G20-2
ShoulderShoulderShoulder48" X 24"
G20-2
(See note 2)(See note 2)20' spacingDevices at100' Max.150' Min.1/3 LShoulderTCP (1-1b)
48" X 48"
CW20-1D
See note 1)
(Flags-
Devices
Channelizing
(See note 2)
CW20-1D
See note 1)
(Flags-
48" X 48"3X for over 50 mphX for 50 mph or lesstraveled way.
from the nearest
minimum of 30'
work area is a
omitted if the
devices may be
Channelizing 3X for over 50 mphX for 50 mph or less3X for over 50 mphX for 50 mph or less3X for over 50 mphX for 50 mph or less(See notes 4 & 5)
or strobe lights.
oscillating
flashing,
intensity rotating,
with TMA and high
Shadow Vehicle
TCP (1-1a)
WORK SPACE NEAR SHOULDER
Devices
Channelizing
(See note 2)
(See note 2)
Devices
Channelizing
(See note 2)
(See notes 4 & 5)
strobe lights.
oscillating or
flashing,
rotating,
high intensity
with TMA and
Shadow Vehicle
Conventional Roads Conventional Roads
CW20-1D
48" X 48"
See notes 1 & 7)
(Flags-
48" X 48"
CW20-1D
See notes 1 & 7)
(Flags-
GENERAL NOTES
B1/3 LWork SpaceRight-of-way Line(See note 2)20' spacingDevices at100' Max.150' Min.L=Length of Taper(FT) W=Width of Offset(FT) S=Posted Speed(MPH)
Taper lengths have been rounded off.
Conventional Roads Only*
**
TERM STATIONARY
INTERMEDIATE
STATIONARY
LONG TERM
STATIONARY
SHORT TERM
TYPICAL USAGE
MOBILE DURATION
SHORT
Type 3 Barricade
Heavy Work Vehicle
Channelizing Devices
Flag
LEGEND
Flagger
Sign
Message Sign (PCMS)
Portable Changeable
Flashing Arrow Board
Trailer Mounted
M
Traffic Flow
Attenuator (TMA)
Truck Mounted
2
***
75 750'
720'
825'900'75'900'540'
90'
120'
155'
195'
240'
295'
350'
410'
475'
60'
70'
80'
90'
100'
110'
120'
130'
140'
150'
120'
160'
240'
320'
400'
500'
700'
600'
800'
30'
35'
40'
45'
50'
55'
60'
65'
70'
150'
205'
265'
450'
500'
550'
600'
165'
225'
295'
495'
550'
605'
660'
180'
320'
600'
660'
650'715'780'
245'
540'
700'770'840'
30
35
40
45
50
55
60
65
70
60
WSL=
Posted
Speed
"B"
Buffer Space
Longitudinal
Suggested
Tangent
On a
Taper
On a12'
OffsetOffset
11'
Offset
10'
Taper Lengths
Desirable
Minimum
Devices
Channelizing
Spacing of
Suggested Maximum
Formula
L=WS
Spacing
Sign
Minimum
Distance
"X"
48" X 24"
G20-2
(See note 2)
(See Note 3)
vehicle
work
Inactive
roadways.
" signs for shoulder work on conventional "ROAD WORK AHEAD
7. CW21-5 "SHOULDER WORK" signs may be used in place of CW20-1D
freeways.
6. See TCP(5-1)for shoulder work on divided highways, expressways and
surface, next to those shown in order to protect wider work spaces.
5. Additional Shadow Vehicles with TMAs may be positioned off the paved
may be substituted for the Shadow Vehicle and TMA.
to remain in place, Type 3 Barricades or other channelizing devices
longer present but road or work conditions require the traffic control
affecting the performance or quality of the work. If workers are no
30 to 100 feet in advance of the area of crew exposure without adversely
4. A Shadow Vehicle with a TMA should be used anytime it can be positioned
right-of-way line and not parked on the paved shoulder.
3. Inactive work vehicles or other equipment should be parked near the
Engineer.
in the plans, or for routine maintenance work, when approved by the
denoted with the triangle symbol may be omitted when stated elsewhere
2. All traffic control devices illustrated are REQUIRED, except those
1. Flags attached to signs where shown are REQUIRED.
Min.
10'
WORK VEHICLES ON SHOULDERShoulderShoulder48" X 24"
G20-2
(See note 2)
Devices
Channelizing
(See note 2)
TCP (1-1c)Min.30'3X for over 50 mphX for 50 mph or less3X for over 50 mphX for 50 mph or less48" X 48"
CW20-1D
See note 1)
(Flags-
Devices
Channelizing
(See note 2)
devices at all times.
channelization
lanes of traffic by
separated from
remain in areas
cranes, etc., shall
as trucks, moveable
work operation, such
necessary for the
other equipment
Work vehicles or
(See notes 4 & 5)
strobe lights.
oscillating or
rotating, flashing,
high intensity
with TMA and
Shadow Vehicle
Conventional Roads
48" X 48"
CW20-1D
See notes 1 & 7)
(Flags-
SHOULDER WORK
CONVENTIONAL ROAD
TRAFFIC CONTROL PLAN
8-95
2-94
2-12
4-98
1-97
151
2-18
December 1985
tcp1-1-18.dgn
TCP(1-1)-18
DN:CK:DW:CK:FILE:
JOB
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REVISIONS
HIGHWAY
SHEET NO.
C TxDOT
of this standard to other formats or for incorrect results or damages resulting from its use.kind is made by TxDOT for any purpose whatsoever. TxDOT assumes no responsibility for the conversion The use of this standard is governed by the "Texas Engineering Practice Act". No warranty of anyDISCLAIMER:CONT
FILE:DATE:Standard
Division
Operations
TrafficMedianShoulderShoulderMedianShoulderWork SpaceWork SpaceBL500' Min.TCP (1-5b)TCP (1-5c)
LANE CLOSURE NEAR ENTRANCE RAMPS
48" X 24"
G20-2
closure
for lane
devices
control
for traffic
See TCP(1-5a) 500'FRONTAGE RD.1/3 LLMin.30'48" X 48"
CW20RP-3D500' min.
48" X 24"
G20-2
ShoulderLANE CLOSURE NEAR EXIT RAMPS1/3 LMin.30' L100' Min.1000'48" X 36"
E5-2
1
0' Mi
n.Work SpaceBTCP (1-5a)2600'1000'1600'1/3 LL500' Min. MedianShoulderShoulderCW20-5TR
48" X 48"
CW20-5TR
48" X 48"Shoulder30' Min.ONE LANE CLOSURE
to enter the ramp.
is normally required
to close a lane which
lane closure is needed
closure details if a
See TCP(1-4a) for lane
4 & 5)
(See notes
G20-2
48" X 24"
(See notes 4 & 5)
(See notes 4 & 5)
48" X 30"
R11-2bT
CW20-1F
48" X 48"
See note 1)
(Flags-
48" X 42"
E5-1
for lane closure
warning signs
for advance
See TCP(1-5a)
for lane closure
warning signs
for advance
See TCP(1-5a)
GENERAL NOTES
TERM STATIONARY
INTERMEDIATE
STATIONARY
LONG TERM
STATIONARY
SHORT TERM
TYPICAL USAGE
MOBILE DURATION
SHORT
Type 3 Barricade
Heavy Work Vehicle
Channelizing Devices
Flag
LEGEND
Flagger
Sign
Message Sign (PCMS)
Portable Changeable
Flashing Arrow Board
Trailer Mounted
M
Traffic Flow
Attenuator (TMA)
Truck Mounted
L=Length of Taper(FT) W=Width of Offset(FT) S=Posted Speed(MPH)
Taper lengths have been rounded off.
Conventional Roads Only*
**
2
***
75 750'
720'
825'900'75'900'540'
90'
120'
155'
195'
240'
295'
350'
410'
475'
60'
70'
80'
90'
100'
110'
120'
130'
140'
150'
120'
160'
240'
320'
400'
500'
700'
600'
800'
30'
35'
40'
45'
50'
55'
60'
65'
70'
150'
205'
265'
450'
500'
550'
600'
165'
225'
295'
495'
550'
605'
660'
180'
320'
600'
660'
650'715'780'
245'
540'
700'770'840'
30
35
40
45
50
55
60
65
70
60
WS
L=
Posted
Speed
"B"
Buffer Space
Longitudinal
Suggested
Tangent
On a
Taper
On a12'
OffsetOffset
11'
Offset
10'
Taper Lengths
Desirable
Minimum
Devices
Channelizing
Spacing of
Suggested Maximum
Formula
L=WS
Spacing
Sign
Minimum
Distance
"X"
shown in order to protect a wider work space.
closed lane, on the shoulder or off the paved surface, next to those
5. Additional Shadow Vehicles with TMAs may be positioned in each
Shadow Vehicle and TMA.
Barricades or other channelizing devices may be substituted for the
work conditions require the traffic control to remain in place, Type 3
quality of the work. If workers are no longer present but road or
of crew exposure without adversely affecting the performance or
used anytime it can be positioned 30 to 100 feet in advance of the area
oscillating or strobe lights. A Shadow Vehicle with a TMA should be
4. Shadow Vehicle with TMA and high intensity rotating, flashing,
device. Chevrons may be attached to plastic drums as per BC Standards.
with the Chevron Alignment Sign placed on every other channelizing
3. Channelizing devices used to close lanes may be supplemented
Engineer.
in the plans, or for routine maintenance work, when approved by the
denoted with the triangle symbol may be omitted when stated elsewhere
2. All traffic control devices illustrated are REQUIRED, except those
1. Flags attached to signs where shown, are REQUIRED.
48" X 48"
CW25-1T
20' spacing
Devices at
Channelizing
DIVIDED HIGHWAYS
LANE CLOSURES FOR
TRAFFIC CONTROL PLAN
February 2012
tcp1-5-18.dgn
2-18
155
TCP(1-5)-18