1.Key Laboratory of Transport Industry of Big Data Application Technologies for Comprehensive Transport,Ministry of Transport,Beijing Jiaotong University,Beijing 100044,China
2.Highway Planning Unit,Cangxian Transportation Bureau Communication,Cangzhou 061700,China
3.Urban Rail Transit Department,Beijing Vocational College of Transport,Beijing 100096,China
The vehicle window was introduced to the study to address the problem that the factors considered in the route optimization study of multi-vehicle customized bus are not close to the actual situation. Firstly, the concept of vehicle window was introduced to describe the departure cost, travelling cost, vehicle capacity and travelling speed of different type of customized bus. Secondly, an integer linear programming model with vehicle window was constructed. The model has passenger time-space window and vehicle window as input, and the minimization of enterprise operation cost and passenger travel cost as objective. Finally, a three-segment hybrid encoding genetic algorithm including the customized bus, boarding point and alighting point was designed to solve the model according to the characteristics. It solves the problems of chaotic service order and low optimization efficiency caused by hybrid coding in most stations.An example analysis was carried out in the Sioux Falls network. The results show that: The model with vehicle window is more suitable to the actual scheme, and the greater the difference of vehicle speed ratio, the greater the impact on the scheme.
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