Automated speed enforcement in England has increased capacity by 5 to 10 percent.

A review of ITS in Europe

August 1999
Nationwide; United Kingdom

Summary Information

This research was a "scan team" effort jointly sponsored by the Federal Highway Administration (FHWA), the American Association of State Highway and Transportation Officials (AASHTO), and the Transportation Research Board (TRB). During a two-week period in May 1998, the team visited with transportation officials in Gothenburg, Sweden; Frankfurt, Cologne, and Bonn, Germany; Paris, France; and London and Birmingham, England to identify noteworthy practices and technologies that may have value in the United States.


According to England officials, automated enforcement is important in maintaining compliance with variable speed limits. Detectors identify vehicles exceeding the speed limit while cameras mounted on overhead freeway signs photograph the license plate. The system has shown a very high compliance rate with speed limits, an increase in capacity by 5 percent to 10 percent, and a 25 percent to 30 percent decrease in rear-end accidents on the approaches to queues on the freeway.

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Innovative Traffic Control Technology and Practice in Europe

Author: Tignor, Samuel, et al.

Published By: Office of International Programs, U.S. DOT

Source Date: August 1999

Other Reference Number: Report No. FHWA-PL-99-021


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Goal Areas


Related Metropolitan Integration Links

Link 6: Incident Management to Traveler Information

Typical Deployment Locations

Metropolitan Areas, Rural Areas


photo enforcement, speed cameras, automated speed enforcement, automated enforcement, photo radar

Benefit ID: 2007-00353