Modeling and Analysis on Minimum Safe Distance for Platooning Vehicles Based on Field Test of Communication Delay

Vehicle platooning is a perspective technique for intelligent transportation systems (ITS). Connected and automated vehicles (CAVs) use dedicated short-range communication (DSRC) to form convoy, in which the following can receive information from their preceding achieve safe driving maintain short headway. Consequently, vehicle platoon improve traffic safety efficiency, further reducing fuel consumption. However, emergency braking inevitably occurs when meets an accident or sudden mechanical failure. It more critical wireless got delays. Therefore, “how predefine minimum distance (MSD) considering delay” challenging issue. To this end, series of field tests were carried out measure delay IEEE 802.11p that underlying protocol DSRC. Subsequently, MSD modeled analyzed travels at accelerating, cruising, decelerating states. More importantly, results are applied models investigate impact on practice. The simulation verify proposed model effectively vehicles’ even if happens with certain