Research on Vehicle Actuated Coordinated Control Method Based on RFID Electronic Tag

For traditional arterial road coordinated control with predetermined cycle, split, and offset cannot adapt for dynamic real-time traffic flow. In addition traditional vehicle actuated coordinated control will fail in oversaturated traffic status and other limitations. To overcome these limitations, this paper adopts active electronic tags to get the update ratio of the vehicles in the test range, changes time interval between vehicles as control basis in traditional vehicle actuated control theory, puts forward putting vehicle density as whether green light extension control basis by using RFID electronic tag in vehicle actuated control. When the vehicle density is higher than the setting threshold value, green light continues, on the contrary, switching the phase. The method not only can overcome the drawback that traditional vehicle actuated coordinated control will fail in oversaturated traffic status, but also can effectively improve the utilization of green light and decrease the average delay in the intersection, which has been verified by simulated experiment through VISSIM.