This figure shows a list of measures and their effectiveness, safety impacts, and efficiency impacts. (Submitted image)
KNOXVILLE— It’s a common driving predicament: As you approach the intersection, the light is yellow. Do you hit the brakes or face a red light camera fine?
Some municipalities engineer their traffic signals to force drivers into this situation in an effort to generate revenue from the cameras.
Professors at the University of Tennessee in Knoxville have analyzed this issue to determine if traffic control measures intended to boost red light revenue—such as shortening yellow light time or increasing the speed limit on a street—compromise safety. [Read more…]
