Extend Yellow and All Red Time
Flashing Yellow Turn Phase
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SIGNALS
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SIGNALS
Extend Yellow and All Red Time
Extending yellow and all red time increases the time allotted for the yellow and red lights during a signal phase . Extending yellow and all red time allows drivers and bicyclists a few additional seconds of time at the end of a signal phase to cross through a signalized intersection before conflicting traffic movements are permitted to enter the intersection .
Flashing Yellow Turn Phase
Flashing yellow turn arrow alerts drivers to proceed with caution and decide if there is a sufficient gap in oncoming traffic to safely make a turn . To be used only when a pedestrian walk phase is not called . Protected-only phases should be used when pedestrians are present .
Cost $$
Cost $
Low Cost / Quick Build alternative available
Relevant Crash Types Angled Crashes at Signalized Intersections Bicyclists at Signalized Intersections
Safe System Hierarchy |
Tier 1 |
Tier 2 |
Tier 3 |
Tier 4 |
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Manage Conflicts in Time |
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Relevant Crash Types Left Turns at Signalized Intersections Right Turns at Signalized Intersections
Safe System Hierarchy |
Tier 1 |
Tier 2 |
Tier 3 |
Tier 4 |
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Increase Attentiveness and Awareness |
APPENDIX B : COUNTERMEASURES TOOLBOX B-31