A route guidance system of a traffic network

This paper presents a traffic control system, an optimal route guidance algorithm and an evaluation algorithm of mean travel time. The traffic control system is constructed by combining a route guidance system and a traffic signal control system. The optimal route guidance algorithm is derived from Dijkstra's algorithm weighted by the mean travel time of each link. The mean travel time is evaluated by taking account of traffic congestion lengths, traffic signal control parameters, moving directions at the downstream signalized intersection and so on. The optimal route guidance algorithm is simulated and compared with actual measurement values in a traffic network.