Flashing Yellow Arrow

33 Pages·2013·6.8 MB·English

Welcome
ITS Georgia Attendees

Flashing Yellow Arrow Left Turns
… Lessons Learned
Steven W. Cummins, P.E.
Traffic Signal System Manager
Lexington, Kentucky
[email protected]
859.258.3491
Traffic Management Efforts
Flashing Yellow
Dual Red Signal
Video Detection Camera
Arrow Signal
Countdown Pedestrian Signals
Fiber Optic Cable
LED Traffic Signal
Traffic
Management
Center
Audible Pedestrian
Traffic Monitoring Camera 2070 Advanced
Signal Control
Signal Controller
Solar Powered
School Flasher
Causes of Traffic Congestion
Work Zones
Weather
10%
15%
Poor Signal
Timing
5%
Traffic
Incidents
Special
25%
Events
5%
Bottlenecks
40%
Non-recurring Incidents
42 collisions per day
33 motorist assists
25 lane blockages
150 emergency runs
Special Events
• Football Games
– Program Signals
– Relay traffic reports to media
– Monitor roadway conditions with cameras and
modify signal timing
– Collaborate with Police with Officer posted in TMC

• Basketball games
– Monitor Rupp Arena events
– Oversee celebrations for UK Basketball
Tournament Games, etc.
Weather Events
Construction Blockages
2070 Enhancements
• Powerful and Flexible:
– Up to 64 different timing plans
• No pedestrian limitations
• Up to 4 different offsets for each plan
– Up to 200 scheduled events possible
– Up to 12 different phase sequences
– Traffic Responsive Operations
– Flashing Yellow Arrows (FYAs)
• Logic Commands, Scheduling, Overlaps, Page Changes
– Variable left-turn traffic signal operation
2070 Controller Upgrades
Suit Case Tester for Conversions