Improved A* Algorithm For Time-dependent Vehicle Routing Problem
نویسندگان
چکیده
Time-dependent vehicle routing problem (TDVRP) is concerned with vehicle routing optimization in road networks with fluctuant link travel time. Firstly, Time-dependent functions about routing time indicator and routing threat indicator are introduced. Secondly, a time-dependent heuristic function including routing distance indicator, routing time indicator and routing threat indicator is constructed, and an improved a* algorithm is promoted for tdvrp. Finally, the algorithm is validated by using simulations. Keywords-Time-dependent vehicle routing Problem, Heuristic algorithm, Threat, Time-dependent heuristic function
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تاریخ انتشار 2011