Short yellow light times at intersections have been shown to increase the number of traffic violations and accidents. Conversely, increasing the yellow light duration can dramatically reduce red-light violations at an intersection. Some local governments have ignored the safety benefit of increasing the yellow light time and decided to install red-light cameras, shorten the yellow light duration, and collect the profits instead.
Here are some of the cities that have been caught with short yellow light times over the past few years:
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