Speed Enforcement Technologies

ICT investigated the effects of automated speed-radar photo enforcement (SPE) systems on traffic flow characteristics and safety in interstate work zones. The effects of SPE on average speed of vehicles and percentage of speeding drivers were compared to the effects of police presence, signs displaying the driver's speed, and combinations of these treatments.

The outcome of this study is used to improve work zones' safety for the traveling public and construction workers. Using SPE increases speed limit compliance, maintains speed uniformity, reduces speeding problems in work zones, and does not interrupt traffic flow. With SPE, speed enforcement can be implemented at locations where it is not convenient for patrol cars to park.

For more information, contact Rahim (Ray) Benekohal.