United States Department of Transportation
i
Test Track Procedures for Heavy-Vehicle Forward Collision Warning and Automatic Emergency Braking Systems
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2019-03-01
[PDF-824.99 KB]
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Edition:Final Report
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Abstract:This report describes objective test track procedures developed by NHTSA to collect performance data on trucks and buses with gross vehicle weight ratings over 4,536 kg (10,000 lbs) and equipped with forward collision warning (FCW) and automatic emergency braking (AEB) systems. These safety systems are designed to mitigate or avoid the most frequent rear-end crashes in the United States. The systems use forward-looking sensors such as radars and cameras to detect vehicles in the roadway. When a rear-end crash is imminent, the FCW system warns the driver of the threat. If the driver takes no action, such as braking or steering, or if the driver does brake, but with not enough effort to avoid the crash, an AEB system may automatically apply or supplement the brakes to avoid or mitigate the rear-end crash. The developed test procedures use a test target to represent a stopped, steady moving, and decelerating lead vehicle in the test scenarios. Two additional scenarios evaluate false positive incidents where FCW/AEB warnings/activations are typically suppressed.
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Content Notes:Elsasser, D., Salaani, M. K., & Boday, C. (2019, March). Test track procedures for heavy-vehicle forward collision warning and automatic emergency braking systems (Report No. DOT HS 812 675). Washington, DC: National Highway Traffic Safety Administration.
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