‹#›
U.S.
Department of Transportation
Red Light Violation
Warning
•Roadside Equipment (RSE): broadcast Signal
Phase and Timing (SPaT) message, map
data,
and GPS correction.
and GPS correction.
•In-vehicle Device: determine if the vehicle is in danger of violating a
red light.
red light.
•Traffic signal logic may be evaluated to determine if extension of all-red phase is warranted to prevent crashes involving early violators.