In Denver, Colorado emergency vehicle signal preemption reduced response time by 14 to 23 percent.

5 October 1978
Denver,Colorado,United States

Summary Information

This study evaluated changes in emergency vehicle response times as a result of signal preemption in the City of Denver between 1977 and 1978. The study conducted over a 90 day period included three fire stations and 75 signalized intersections. Firefighters recorded travel times necessary to traverse typical routes before and after installation of signal preemption.

The collected data showed emergency vehicle response times decreased by 14 to 23 percent and saved approximately 70 seconds per response on a typical route with 3 to 6 signalized intersections.

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Time Study of the Effectiveness of the Opticom Traffic Control System (Year 1978)

Published By: Prepared by the Denver Department of Safety for the City of Denver

Source Date: 5 October 1978

Other Reference Number: Report No. D-ORTS/78


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Goal Areas


Related Metropolitan Integration Links

Link 22: Emergency Management to Arterial Management

Typical Deployment Locations

Metropolitan Areas


preempt, emergency preemption, traffic signals, EVP, emitter

Benefit ID: 2001-00226