Do Speed Limit Signs Reduce Collisions?
People frequently ask to lower the speed limit on residential streets to make their streets safer and more livable. It is a common misconception that speed limits signs reduce collisions. Studies indicate that no significant change in average vehicle speeds has occurred after the posting of new or revised speed limit signs. In fact, research shows no direct relationship between posting speed limits and collision frequency. How Can Speeding Problems Be Reduced? An effective way of reducing speeds in residential neighborhoods is through a radar speed display board. The Department of Transportation’s Traffic Engineering Services uses a radar device to clock and exhibit motorist speeds. This oversized display board, mounted on a small trailer, helps control chronic speeding problems by letting motorists know when they are exceeding the limit. For more information about how to place a radar speed display board on your street, please call 808-8300. How Are Speed Limit Signs Funded? Every yea
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