7019 - Traffic Signal Hardware, 3.Statement of Work/ Specifications
The scope of work shall be finalized upon the selection of the Firm. The respondent’s submission shall have accurately described your understanding of the objectives and scope of the
requested products and services and provided an outline of your process to implement the requirements of the Scope of Work and Services. It is anticipated that the scope of work will
include, at a minimum, the following:
EXHIBIT 1, SECTION A: SIGNAL AND PEDESTRIAN HEADS
SIGNAL HEADS 12” (Items 1-4)
Material: Ultraviolet-stabilized black polycarbonate resin (having a minimum thickness of .100 inches) and all stainless steel hardware with clasp wing nut assemblies for door closures.
Wire Openings: Accommodates three ¾” diameter cables between sections.
Terminal Block: 3 section, 5 or 6-points
5 section, (2) 5 or 6-points
Signal Alignment: Integral 72-tooth serrated locking ring, adjustable in 5 steps
Overall Dimensions: 12” (300mm) section 13.25” W x 13.44” H x 6.44” D
(337mm x 341 mm x 164mm)
Weight: 300mm/section 5.13 lbs. (2.3 kg)
Warranty: One year against manufacturing defects in materials and workmanship from date of installation.
SIGNAL BACKPLATES AND TUNNEL VISORS FOR 12” HEADS (Items 1-4)
Material: ALUMINUM BACKPLATES
POLY TUNNEL VISORS
The backplate shall be aluminum, louvered, flat black on both sides, and of a one-piece design. All surfaces shall be flat and straight without blisters, scratches, buckling, or warping.
It shall be designed to fit each manufacturer’s signal and be contoured to the signal head to eliminate gaps between the backplate and the signal housing and to allow for attaching
to the signal head. It shall provide a minimum 5” border beyond all sides, top and bottom of the signal and shall have a 3” corner radius. The finished backplate shall be predrilled
and louvered to fit the signal head configuration for which it is designed.
Fabrication: The tunnel visor shall be a one-piece design and fully connected as a ring on the tab mounting side. All surfaces shall be flat and straight without blisters, buckling or
warping. It shall be designed to fit each manufacturer’s signal properly without distortion and gaps when it is mounted. The color shall be black unless otherwise specified and shall
be consistent throughout the entire piece without varying shades or tones.
EXHIBIT 1, SECTION A: SIGNAL AND PEDESTRIAN HEADS (Continued)
Hardware: Each backplate shall be provided with all necessary bolts, nuts and washers, or screws and washers, for assembling the backplate and attaching to the signal head. All hardware
shall be stainless. When mounted on bosses provided on the signal head, self-tapping screws shall be provided along with applicable washers, #10x5/8” screw and #8x3/4” fender washer
typical. When mounting by drilling through the signal body, the proper quantity of the following shall be provided: #8-32 x ¾. Pan Head screw, 5/8” x 1” elongated washer, #8-32 Hex,
locknut with nylon insert. Each tunnel visor shall be secured to the signal with a wide pan head machine screw that in length exceeds the thickness of the visor’s mounting tab by a
minimum of 1/8”.
Certification: Upon delivery, successful bidder may be required to supply documentation certifying that material supplied under this contract meet or exceed specification requirements
as stated above.
Signal Accommodations: Each backplate and tunnel visor shall be designed to properly fit specific signal manufacture’s signal heads as specified in the bid proposal.
PEDESTRIAN SIGNAL HEADS (Items 5-6)
Certification: All Pedestrian signal heads must seal a 16”x18” type lens, TXDOT approved and meets or exceeds ITE specifications.
Warranty: One year against manufacturing defects in materials and workmanship from date of installation.
EXHIBIT 1, SECTION B: CAMERA SYSTEMS – GRIDSMART ONLY
Only the Gridsmart items outlined in Exhibit 1, Section B will be accepted. All Gridsmart components must be shipped directly from Gridsmart to the City of Denton.
EXHIBIT 1, SECTION C: CAMERA SYSTEMS – COHU ONLY
Only the Cohu items outlined in Exhibit 1, Section C will be accepted.
EXHIBIT 1, SECTION D: CABINET ELECTRONICS
HENKE CABINET: (Item 13)
Denton Cabinet Specifications: Cabinet assembly shall be the most current Henke Enterprises, Inc., model number 8P168T/Denton Special with the following features: P44 cabinet with front
and rear doors, door rod rollers, no police door, both standard 18 ½” x 40 5/8” anchor bolt pattern and removable Denton Special 18” x 30” anchor bolt pattern, bottom shelf shall have
a hinged top drawer capable of supporting 50 pounds when fully extended. The maintenance switches shall be mounted in two rows. The top row viewed from left to right shall be Flash/Auto,
Stop Time/Off, and Controller Test/Normal. The bottom row viewed from left to right shall be Signal On/Off, Auto/Manual, and Manual Pushbutton Cord. The 16 position load bay shall be
complete with 8 flash transfer relays, 16 PDC model SSS87-I/O load switches and 1 PDC SSF87 flasher. The load bay shall include load capacitors on all load switch outputs and MOV’s
on all signal field terminals. The main power panel shall be standard ACP-340 style with GFCI outlet. The camera power panel shall be mounted above the main power panel and shall include
an ACP-340, circuit breaker and terminal block, prewired to the line side of the main power panel breaker. The detector panel shall be Denton Special with Econolite Autoscope Solo Terra
I/O cable, pedestrian isolation card, detector test switches for 4 pedestrian phases and 8 vehicle phases, field terminals for 4 channels of Opticom detectors and 16 channels of vehicle
detectors. The 16 loop terminals shall include 16 SRA-6LC loop surge protection devices. ACP-340 Video power panel with circuit breaker and terminal block, Pre-wired Terra Video I/O
cable, Denton Special detector panel with ped isolation card, Detector test switches for 4 pedestrian phases and 8 vehicle phases with field terminals for 4 channels of Opticom detectors
and 16 channels of vehicle detectors. The card rack shall be a Denton Special 14 slot rack wired for power supply, 4-4 channel vehicle detectors, 1 Autoscope Solo Mini-Hub II or Terra
TAP, 2-2 channel Opticom or 1-4 channel Opticom detectors, and a 1.5 Amp CTC card rack power supply. When viewed from the front, and from left to right, the card rack functions shall
be 1.5 Amp power supply, detector phase 1-2-5-6, detector phase 3-4-7-8, system detector 1-2-3-4, system detector 5-6-7-8, Mini-Hub II or TAP, Opticom channel C-D, Opticom channel A-B-C-D.
The preempt interface panel shall be Denton Special with 5 momentary preempt test switches and standard TXDOT 57 pin “D” connector interface.
The panel shall also include a Local TOD/Free switch and adapter cable to work with both Econolite ASC/2-2100 and ASC/3-2100 local controllers. There shall be 2 protected AC power strips
with integral power switches, 15 amp circuit breakers and 6 right angle outlets mounted horizontally on both the upper left wall and upper right wall of the cabinet. All equipment cables
shall be neatly secured to the walls and rear side of the shelves and routed to their appropriate equipment locations in the cabinet. In addition to the 15 watt T12 fluorescent light
fixture mounted in the top of the cabinet there shall be a 25 watt 18” flexible arm incandescent light fixture mounted on the lower right wall of the cabinet to illuminate either the
front or rear side of the load bay.
EXHIBIT 1, SECTION E-F: DETECTORS AND CROSSING SYSTEMS
Sections E and F outline preapproved part numbers for each line item. Bids for alternate items will be considered if:
The proposed item is a comparable
Meets the same specifications as the pre-approved item
Technical Specification and/or drawings are submitted with bid documents (no exceptions). Comparable items submitted without proper backup will not be considered.
EXHIBIT 1, SECTION G: DETECTORS AND CROSSING SYSTEMS
Section G outline preapproved part numbers for each line item. Only pre-approved manufacturer part numbers will be considered. If the approved part number has been discontinued, a replacement
will be considered with back up documentation.