4. Travel and Traffic Signal Operation Update Peter Koonce Division Manager Signals, Street Lighting, & ITS

5. Project Objectives Outcomes
Increase safe and comfortable access at key bottleneck in and out of the Lloyd District and reduce stops and delay for non-motorized traffic.
Improve pedestrian access.
Improve safety at the NE 12th/Irving intersection.
Maintain acceptable operations for all vehicles, including freight and triple trailers.
Outcomes
Implement equipment and signal timing to enhance accessibility and maintain mobility

6. Background: Identified Issues
Signal delay at NE 12th/Lloyd results in queuing throughout system
Bicycle traffic required to share travel lanes
Deficiencies
Conservative Signal Timing Design Originally
No Coordination or Communication Between Intersections

7. Completed Changes: Controller
Installed Updated Traffic Signal Controllers
Communication
Installed Communication Between Intersections
Installed Cameras for monitoring

8. Video Data:
Screen Capture: Video of the WB Lloyd Traffic

9. Video Data:
Screen Capture: Video of the NB/SB 12th Traffic

10. Signal Timing Changes:
Allowed more green time for WB Left Turn, when Ped Crossing is Active
When WB Left Turn is on at 12th/Lloyd – Extended Through and Left Turn SB Movement at 12th/Irving with Internal Logic 10

11. More Signal Timing Changes:
Allowed pedestrian to go with less delay
Allowed pedestrian on east leg to go with EB right turn and NB left turn
Cleared bridge traffic from signal at Irving using signal coordination

12. Notes on most recent signal changes
Far West Ped overlap Ped 3+7
*Was Ped 7 Only
Far East Ped Changed from Ped 7 to Ped 1
Overlap D offset with 12th left turn onto Irving 1 2 1 2 3 3

13. How did we Measure Changes:
Video Data Collection at 12th/Lloyd to monitor effects of modifications
Check vehicle traffic queuing
GPS Travel Time Drives
Existing travel time with no operational changes
After initial signal and striping changes
After elongated striping changes
Final signal and striping changes
Bluetooth Data Travel Time Collectors 13

14. 12th and Lloyd Updated Traffic Counts
PK - Use whichever Photos you want – the raw photos are located at S:\INTERNS\Travis H\WORK PROJECTS\12th Ave overcrossing\Volumes
PM Peak
AM Peak
Updated Traffic Counts
Off-Peak
12th and Lloyd
AM Peak
PM Peak
Off-Peak 14

15. GPS Data Northbound 15

16. GPS Data Northbound

17. GPS Data Southbound: 1

18. GPS Data Southbound: 2 18

19. GPS Data Southbound: 3 19

20. GPS Data Southbound: 1 1 2 3

21. GPS Data Southbound: 2

22. GPS Data Southbound: 3

23. Travel Time AM Peak vs. PM Peak

24. Travel Time Off-Peak vs. PM Peak

25. Bluetooth Data Collection
The Bluetooth units are located at 13th and Lloyd, 12th and Irving, and 12th and Couch
The units collect and match the Bluetooth signature from your wireless device at each location
We collected over 1000 data points after each change was made (approximately 3 data points per 15 minute period)

26. 13th and Lloyd
12th and Couch
12th and Irving

27. Bluetooth Travel Time Summary:
Collected to verify Bluetooth reader accuracy
South on the bridge. Blue Tooth does not give waiting time from the Freeway Exit.

28. Additional Bluetooth Data Slides (may be hidden)
PK – Adjust how you want – listed by direction comparing before, first change, second change – will include final change data when available

29. Questions?