Using detector data to identify and examine crashes and incidents on freeways.
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2010-09-01
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Alternative Title:USDOT Region V Regional University Transportation Center Final Report
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Abstract:Traffic incidents, such as crashes and vehicular breakdowns, result in reductions in roadway capacity and
are the primary cause of non-recurrent congestion in urban areas. In addition to contributing to
congestion and delay, incidents adversely affect the safety of other motorists, as well as first responders.
To address these issues, transportation agencies have initiated incident management programs aimed at
detecting and responding to incidents in order to restore freeways to full capacity by clearing the incident
scene as soon as possible. Such programs play an important role in the operation of the transportation
system and require collaboration and efficient communication among various agencies, including fire and
rescue, police, towing and recovery, transportation engineers, and freeway service patrols. In the Detroit
metropolitan area, the Michigan Department of Transportation (MDOT) operates a Freeway Courtesy
Patrol (FCP) program as part of its freeway incident management program from the Michigan Intelligent
Transportation Systems (MITS) Center in downtown Detroit. As a part of its operations, the MITS
Center maintains a series of databases that detail freeway operations, as well as the activities of the FCP.
However, to date these databases have been maintained independently of one another and no research has
examined the interrelationships between freeway operations and the services of the FCP. This report
details the activities from the first year of a two-year study aimed at analyzing operations and incident
response on the Detroit freeway network.
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