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In this paper, we present a new algorithm of the time-dependent shortest path problem with time windows. Give a directed graph , where V is a set of nodes, E is a set of edges with a non-negative transit-time function . For each node , a time window  within which the node may be visited and  , is non-negative of the service and leaving time of the node. A source node s, a destination node d and a departure time t0, the time-dependent shortest path problem with time windows asks to find an s, d-path that leaves a source node s at a departure time t0; and minimizes the total arrival time at a destination node d. This formulation generalizes the classical shortest path problem in which ce are constants. Our algorithm of the time windows gave the generalization of the ALT algorithm and A* algorithm for the classical problem according to Goldberg and Harrelson [1], Dreyfus [2] and Hart et al. [3].

The Algorithm of the Time-Dependent Shortest Path Problem with Time Windows