This study conducted three test scenarios in a traffic jam assist (TJA) system to assess how well test protocols can be performed and how useful performance criteria is. The first scenario had the lead vehicle decelerate, accelerate, then decelerate (LVDAD); this evaluated the TJA system’s ability to respond to a principal other vehicle (POV). The second was the Suddenly Revealed Stopped Vehicle (SRSV) scenario, which evaluated the system’s ability to respond to a stationary POV with secondary other vehicles (SOVs) surrounding it. The last was the Lead Vehicle Lane Change with Braking (LVLCB) scenario, which evaluated the system’s ability to respond to a moving POV that braked either during or after a lane change. All tests were conducted on the Skid Pad of the Transportation Research Center in East Liberty, Ohio. Sensor data was collected with an in-vehicle data system utilizing real-time kinematic corrections while video data was recorded with cameras. Researchers also assessed revisions to the National Highway Traffic Safety Administration’s (NHTSA) April 2018 draft TJA test procedure.
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