REST-AREA LOCATION MODEL FOR TIME-DRIVEN DEMANDS TO THE EXPEND BUFFER TIME OF FREIGHT VEHICLES

In a typical transport schedule of freight vehicles, buffer times are inserted to deal with the risk of a delay. If no delays and extra buffer times exist, the buffer times must be properly consumed for a rest. The rest-area location model without considering the temporal demands is the same structureas the conventional location set covering model and can be easily formulated; however, time conflicts of demands and transportation scheduling of freight vehicles cannot be considered. Therefore, a rest-area location model for time-driven demands (RALMTD) on a road network is developed. The RALMTD considers time-driven demands and achieves to simultaneously provide facility locations and a transportation schedule. In experiments, the effectiveness of the RALMTD is con-firmed using a virtual road network, which is generated based around Tokyo in Japan.