United States Department of Transportation
i
Frequency of target crashes for IntelliDrive safety systems
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2010-10-01
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[PDF-544.32 KB]
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Abstract:This report estimates the frequency of different crash types that would potentially be addressed by various categories of Intelligent Transportation Systems as part of the IntelliDriveSM safety systems program. Crash types include light-vehicle crashes involving at least one light vehicle with gross vehicle weight rating (GVWR) of 10,000 pounds or less, heavy-truck crashes involving at least one heavy truck with GVWR greater than 10,000 pounds, and crashes involving all vehicle types. Crash frequency estimates are based on samples of police-reported crashes from the 2005-2008 General Estimates System crash databases. System categories encompass vehicle-to-vehicle (V2V) communication systems, vehicle-to-infrastructure (V2I) cooperative systems, and combination of V2V and V2I systems. The frequency of target crashes is derived from pre-crash scenarios described in police-reported crashes involving unimpaired drivers. V2V systems potentially address 79 percent of all vehicle target crashes, 81 percent of all light-vehicle target crashes, and 71 percent of all heavy-truck target crashes. V2I systems potentially deal with 26 percent all vehicle target crashes, 27 percent of all light-vehicle target crashes, and 15 percent of all heavy-truck target crashes. Combined V2V and V2I systems potentially address 81 percent all vehicle target crashes, 83 percent of all light-vehicle target crashes, and 72 percent of all heavy-truck target crashes.
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