The Study Of Customized Bus Network Design In Diversified Operation Modal

In the development context of diversified traffic demand,the requirements of public for the city travel personalized,quality,fine requirements are getting higher and higher.The customized bus with the characteristics of demand response and flexible operation began to appear in many cities.However,because there are no standardized operating organization model system and effective line planning method,the customized bus still has lower spread and operating enterprises take the loss and so on.Based on the actual operating background and the current research situation at home and abroad,this thesis started the research from the two aspects of perfecting the customized bus operational service system and analyzing the customized bus network planning method.Combining the operational service model elements with the network planning target constraints,multi-mode operational service elements of the customized bus network planning model is built based on Vehicle Routing Problem(VRP)model.Besides,by analyzing the case,the thesis obtains basic theory of network planning which is more suitable for customized bus diversification operational mode.And this can provide reference for the urban customized bus and public transport development.The main research of the thesis includes:(1)According to the relevant literature at home and abroad and operation status,the thesis analyzes the concept and positioning of customized bus,and clarifies the relationship between the customized bus operational service mode and the network planning method.Besides,the thesis summarizes the incompatible problems between customized bus operational service mode and the network planning method;(2)Perfecting the customized bus service framework system and summarizing the process characteristics of the customized bus operation mode,and constructing the operational service system including the participants,service configuration,service mechanism and service management.Prospects is also be analyzed;(3)The idea and principle of customized bus network planning are studied.The key issues such as demand analysis,operation mode,and network level and fare mechanism are discussed and analyzed in detail.The objective function and the constraint conditions of the network planning model are analyzed,and the evaluation system is arranged,which provide the theoretical support for network planning;(4)Combining with the characteristics of customized bus service model,we can build the corresponding network planning model,which aims at the minimum cost of operating enterprises and the maximum benefit of passenger travel and chooses the operational service model elements including multi-vehicle transportation,multi-point to multi-point operation,passenger mixed load,travel time requirements as the constraints.The heuristic algorithm is used to solve the model;(5)Based on the analysis of the actual situation of a city,the author uses the simulation demand data and combines the actual site and road network to carry out the specific planning of the customized bus network.Finally,the optimization suggestions of customized bus operation organization and network planning are put forward.