To Go or Not To Go: N-hop Congestion Notice with Experience Support for Dynamic Detouring

A dynamic detour scheme for intelligent transportation systems (ITSs) to avoid traffic congestion is proposed in this paper. When running into traffic congestion, vehicles usually can do nothing but waiting. The proposed scheme can prevent driver suffer from traffic congestion by balancing traffic flows with nhop notices method and experience-support method. Congestive information can be received from road side units. The notification range of congestion event is determined by the server. In this study, the range of congestion notification is defined as nhop from congestion road. Only the vehicles located in the n-hop range will receive the notification. Also, the information about the average time for vehicles to get through each road can be recorded to help reselecting a new path to avoid congestion. According to simulation results, both n-hop notices and experience-support method are proved to improve traffic congestion effectively.