2019-027 Red Light Camera Pilot updateDate: February 15, 2019 Report No. 2019-027
INFORMAL STAFF REPORT
TO MAYOR AND CITY COUNCIL
SUBJECT:
Provide additional information on red light camera violations and accident data trends following
the yellow light timing pilot at W. Oak St. and Carroll Blvd. and consider extending the pilot to
additional red light cameras in the community.
BACKGROUND:
During the February 12, 2019 City Council meeting, Council asked staff for a breakdown of red
light camera violations and if the pilot program, which adds one second to the yellow signal change
interval at the intersection of W. Oak Street and Carroll Blvd., could be extended to another
intersection with red light cameras. Council Member Briggs also asked for accident information
at the intersection of W. Oak St. and Carroll Blvd. where the pilot program is currently in place.
DISCUSSION:
Red Light Camera Pilot Program
The City of Denton currently has 11 active red light cameras. In April 2018, staff extended the
yellow signal change interval by one second to a total of 4.5 seconds for all directions of the
intersection of W. Oak St. and N. Carroll Blvd. As described in the February 8, 2019 Friday Report,
the number of violations for this intersection has been significantly reduced since the
implementation of the pilot program.
The table below shows the number of red light violations per camera for 2018. Southbound Loop 288 at I-35 E Northbound Loop 288 at Spencer Rd. Northbound S. Bell Ave. at E. Hickory St. Northbound US 377 at I-35 E Southbound US377 at I-35 E Northbound Lillian Miller Blvd. at I-35E Southbound Mayhill Rd. at Spencer Rd. Northbound Mayhill Rd. at Spencer Rd. Westbound Oak St. at Carroll Blvd. Eastbound Shady Oaks Dr. at Woodrow Ln. Eastbound University Dr. at Mayhill Rd. Westbound University Dr. at Mayhill Rd. Jan 2018 542 327 111 408 458 227 116 96 46 346 161 120
Feb 2018 524 255 60 350 442 162 113 78 32 382 151 77
Mar 2018 694 262 63 512 601 227 137 108 51 436 287 155
Apr 2018 673 234 133 567 655 368 78 45 35 419 247 178
May 2018 666 230 153 659 584 431 61 10 19 445 221 232
Jun 2018 636 136 169 664 565 407 80 20 402 216 195
Jul 2018 605 124 153 692 700 417 90 11 416 246 209
Aug 2018 563 197 117 566 727 399 72 13 506 330 305
Sep 2018 286 241 147 632 738 296 60 25 505 269 273
Oct 2018 625 167 196 542 851 410 74 19 570 289 260
Nov 2018 634 215 165 619 648 852 81 8 536 177 233
Dec 2018 630 188 102 625 681 671 62 10 516 172 148
Average
Per Month 589.8 214.7 130.8 569.7 637.5 405.6 85.33 67.4 24.08 456.6 230.5 198.8
Date: February 15, 2019 Report No. 2019-027
Intersections with the highest number of violations were Southbound US 377 (Fort Worth Dr.) at
I-35E, Southbound Loop 288 at I-35E, and Northbound US 377 (Fort Worth Dr.) at I-35 E.
Based on several concerns expressed by residents, signal timing for Southbound Loop 288 at I-
35E was recently changed to improve traffic flow. Based on analysis of this intersection, staff
believes that extending the yellow light timing at this intersection would have a negative impact
on recent traffic flow improvements and cause congestion.
Using the number of violations as a guide, staff is recommending to extend the pilot program
(adding one second to the yellow signal interval) to the signals for both the northbound and
southbound cameras at the intersection of I-35E and US 377 beginning March 1, 2019.
Carroll Blvd. and Oak St. Accident Data
Council Member Briggs also request accident data prior to and after the launch of the April 2018
pilot program at the intersection of Carroll Blvd. and Oak St. The chart below shows a breakdown
of the total number of accidents reported to the Police Department at this intersection. Since
January 2016, there have been a total of 17 accidents at the intersection. Since the pilot program
began at this intersection in April 2018, there have been four accidents reported.
STAFF CONTACT:
Bobby Smith
Assistant Police Chief
Bobby.Smith@cityofdenton.com
Pritam Deshmukh
Deputy City Engineer
Pritam.Deshmukh@cityofdenton.com
5 5
7
0
1
2
3
4
5
6
7
8
NumberAccidents at Carroll Blvd. and W. Oak St.
2016 2017 2018