College Station City Council – August 24, 2017Troy Rother

City Traffic Engineer

12 Traffic Division Staff◦ 3 engineers◦ 1 superintendent◦ 1 signal foremen ◦ 3 signal technicians◦ 1 sign foreman◦ 3 signs technicians

Equipment◦ 79 Traffic Signals◦ 60 School Zone Flashers◦ 59 Vehicle Detection Cameras◦ 52 Pan Tilt Zoom Cameras

Game Day Coordination

Game Day Coordination

Downtown Houston• 150,000 workers• 7 Freeways

Downtown Dallas• 145,000 workers• 6 Freeways

Downtown Austin• 125,000 workers• 4 Freeways

Downtown Houston• 150,000 workers• 7 Freeways

Downtown Dallas• 145,000 workers• 6 Freeways

Downtown Austin• 125,000 workers• 4 Freeways

Kyle Field Gameday• 120,000+ fans• 0 Freeways

Downtown Houston• 150,000 workers• 7 Freeways

Downtown Dallas• 145,000 workers• 6 Freeways

Downtown Austin• 125,000 workers• 4 Freeways

Kyle Field Gameday• 120,000+ fans• 0 Freeways

4th

Largest Downtownin Texas

Signal Performance Measures

Wait timeNumber of Calls

Date Range

Signal Performance Measures

Wait timeNumber of Calls

College Station City Council – August 24, 2017Troy Rother

City Traffic Engineer

Game Day Coordination

Game Day Coordination

4th

Largest Downtownin Texas

Signal Performance Measures

Signal Performance Measures

City of College Station◦ 104,000 residents

City of Bryan◦ 81,000 residents

Blinn College◦ 11,000 students

Texas A&M University◦ 60,000 students

◦ 102,733 person stadium (Kyle Field)

◦ 800 TTI employees

With 75,000 people: Campus is the 4th

Largest Downtown in Texas!!!

Before

20 + Years Old Technology

Before

20 + Years Old Technology

Parts only available on eBay

Before August 2015

ITS ImplementationTraffic Control Center

ITS ImplementationTACTICS 3.0.1 central system

ITS Implementation52 pan-tilt-zoom camera streams (Sony)

ITS Implementation59 video detection camera streams

ITS Implementation48 Blue Tooth Readers

ITS ImplementationOpen Source ATSPM Software

Increases usefulness of other tools◦ Approach Volumes – data for modeling

Resolve operational issues quickly◦ Train Preemption – citizen request response

◦ Split Monitor – green time allocation

◦ Coordination Diagram – offset adjustments

Selling safety improvements◦ Pedestrian Delay – policy recommendations

Effects of Planned and Unplanned Events

Peak Hour Volumes

7 AM 7 PMMaybe these two trains?

Citizen: Why was traffic so bad at 11:30 when I tried to go to lunch?!?!

MaxOutsGapOuts

Track Clearance Green

7 AM 7 PM

MaxOuts

7 AM 7 PM

54 % MaxOuts

GapOuts

7 AM 7 PM

36 % GapOuts

Phase MaxOuts Avg. SplitProgrammed

Max SplitTiming Change

SB-Left - 1 10 %

2 40 %

RR-Left - 3 55 %

4 30 %

NB-Left - 5 5 %

6 40 %

7 10 %

RR-Thru - 8 60 %

Phase MaxOuts Avg. SplitProgrammed

Max SplitTiming Change

SB-Left - 1 10 %

2 40 %

RR-Left - 3 55 %

4 30 %

NB-Left - 5 5 %

6 40 %

7 10 %

RR-Thru - 8 60 %

Phase MaxOuts Avg. SplitProgrammed

Max SplitTiming Change

SB-Left - 1 10 %

2 40 %

RR-Left - 3 55 %

4 30 %

NB-Left - 5 5 %

6 40 %

7 10 %

RR-Thru - 8 60 %

Phase MaxOuts Avg. SplitProgrammed

Max SplitTiming Change

SB-Left - 1 10 % 30 sec 38 sec

2 40 % 65 sec 78 sec

RR-Left - 3 55 % 25 sec 28 sec

4 30 % 35 sec 42 sec

NB-Left - 5 5 % 25 sec 48 sec

6 40 % 70 sec 78 sec

7 10 % 20 sec 28 sec

RR-Thru - 8 60 % 45 sec 42 sec

MaxOuts

7 AM 7 PM

54 % MaxOuts

11/14

MaxOuts

7 AM 7 PM

37 % MaxOuts

11/21

Phase11/14

MaxOutsTiming Change

11/21MaxOuts

Outcome

SB-Left - 1 10 % - 10 sec 25 % - 15 %

2 40 % 45 %

RR-Left - 3 55 % + 10 sec 40 % + 15 %

4 30 % 30 %

NB-Left - 5 5 % - 10 sec 10 % - 5 %

6 40 % 40 %

7 10 % 15 %

RR-Thru - 8 60 % + 10 sec 50 % + 10 %

P.S. This change only consumed 30 minutes of staff time.

Start of Green

End of Green

Dots Represent Arrival of Vehicles at the intersection

6 to 7 lane roadway with a lot of people driving

Existing Conditions

University Drive through Northgate is now a downtown street.

Wait timeNumber of Calls

Date Range

University Drive through Northgate is now a downtown street.

7 AM Midnight

Between 7 am and midnight 87 % of the cycles had a pedestrian call.

This was at 9:20 am

There are 37 people walking in this image.

Implement pedestrian only phase.◦ Requires No Right-Turn on Red.

Implement pedestrian only phase.◦ Requires No Right-Turn on Red.

Implement protected only left turns. ◦ For University Drive.

Implement pedestrian only phase.◦ Requires No Right-Turn on Red.

Implement protected only left turns. ◦ For University Drive.

Benefit:◦ A potential 73 % reduction in expected number of

crashes.

Implement pedestrian only phase.◦ Requires No Right-Turn on Red.

Implement protected only left turns. ◦ For University Drive.

Benefit:◦ A potential 73 % reduction in expected number of

crashes.

Cost:◦ Increased travel time.

◦ From 1 to 3 minutes to 2 to 4 minutes.

City of College Station◦ 104,000 residents

City of Bryan◦ 81,000 residents

Blinn College◦ 11,000 students

Texas A&M University◦ 60,000 students

◦ 102,733 person stadium (Kyle Field)

◦ 800 TTI employees

Brazos County