Japan conducts world's first CACC-based truck queue driving experiment
Wang Pengfei
Japan Liaison for the Journal's International Correspondence Station
Hebei Normal University of Science and Technology
Urban Construction Institute
In order to cope with the shortage of truck drivers caused by Japan's ageing population and the growing number of children, and to improve the efficiency and safety of cargo transportation, the Ministry of Land, Infrastructure, Transport and Tourism intends to carry out experiments in 2018 with a subsequent manned truck queue based on the Cooperative Adaptive Cruise Control (CACC) system (except for the head truck, which is manned, all subsequent vehicles in the queue are unmanned, and only one person is assigned to handle emergencies), and in 2020 with a subsequent unmanned truck queue (except for the head truck, all subsequent vehicles in the queue are unmanned, and no person is assigned to handle emergencies), and in 2022 to enter full commercial operation. CACC means that the rear vehicle can perform its own acceleration and deceleration to maintain a safe distance depending on the driving conditions of the vehicle in front. Under this plan, Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) conducted the world's first experiment of subsequent manned truck queue driving based on the CACC system between the Hamamatsu service area and the temporary parking lot in Morimachi, Farshu, on the New Tomei Expressway on January 23, 2018.
Participants in this experiment included four Japanese truck manufacturers using the same CACC system. The main objectives of this experiment are 1) the social acceptability of this queue driving format and 2) how the behavior of vehicles driving around the queue (e.g., overtaking behavior, etc.) affects the CACC system and the driving queue. In addition, the Ministry of Land, Infrastructure, Transport and Tourism of Japan is planning to conduct a series of technical experiments on the effect of road height differences on the CACC system on the North Kanto Autobahn from January 30 to February 1, 2018.
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