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CACC: Key Initiatives
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2011 Grand Cooperative Driving Challenge (GCDC)
Competition description:
•Eleven teams from nine different countries competed to deliver the most effective cooperative vehicle-infrastructure system in pre-determined traffic
Findings:
•Successful vehicle teams utilized detection including: radar, LIDAR, inertial sensors, GPS, and video-based scene understanding
•Also utilized 5.9GHz communication to coordinate lead and following vehicles
•Demonstrated that using existing technology, CACC-equipped vehicles could be successful at dampening shock waves, maintaining reduced headways, and improving throughput
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•Two scenarios tested:
–Urban Setting.  Platoon at traffic signal must merge and sync smoothly with another leading platoon
–Freeway Setting.  Lead vehicle of an existing platoon introduces acceleration disturbances; following vehicles must adapt.