THE YELLOW-TRAP HAZARD:
PREVENTING YELLOW TRAP WITH FLASHING YELLOW ARROWS
- Proper Implementation of Flashing Yellow Arrows
- The Truth About Flashing Yellow Arrows
- FAQ about FYA
- A Visual Example of Flashing Yellow Arrows
- Relay Implementation of FYA
- Left Turn Signals - Then and Now
- The Perception Problem of Clearing a Flashing Yellow Arrow
- Which states are making progress with Flashing Yellow Arrows? Here are the box scores.
PREVENTING YELLOW TRAP
ABOUT LEFT TURN SIGNALS
BAD EXAMPLES
SITE LINKS
REFERENCE LINKS
- The entire original research report by the National Cooperative Highway Research Program:
NCHRP Report 493 pdf - Two web pages by the company who did the work on the report:
Learn about the flashing yellow arrow
Fixing the Yellow Trap - This explains it better than any other web page:
Dallas Left Turn Phasing and 4-Section PPLT - A well written description written before the new MUTCD came out (see below):
Mullinax Flashing Yellow Arrow pdf - Another well written report on the subject:
Improving Left-Turn Safety Using Flashing
Yellow Arrow Permissive Indications pdf - This is best viewed in full slideshow mode:
Flashing Yellow Arrows ppt - Preventing Yellow Trap with a Doghouse Display:
How to Use "Inhibit Phases" to Avoid the "Yellow Trap." - The new 2009 federal standard:
Manual of Uniform Traffic Control Devices (MUTCD)
IMPLEMENTATION
- Flashing Yellow Arrows lagging left turn as installed.
- Flashing Yellow Arrows in a quad split lead signal.
- Flashing Yellow Arrows in a quad single-split lead-lag signal.
- Inserted Red Clear lagging left turn as installed.
- Inserted Red Clear in a quad split lead signal.
- Call Redirection leading left turn as installed.
- Call Redirection in a quad split lead signal.
- False Calls leading left turn as installed.
- False Calls implemented in a quad split lead signal.
- A standard quad split lead left-turn signal causing yellow-trap.