基于可靠性分析的公交线网优化方法研究

Public transport system is affected by many random factors, such as weather conditions, traffic accidents and so on. Therefore, in the public transportation system planning and management, only to take into account the constant indicators is not enough and the reliability as a probability index is better reflect its dynamic random. It is able to be more accurate and comprehensive evaluation to describe the situation of public transport. Referred on the road network reliability optimization theory, this paper initial searches after the optimization method of public transportation network reliability . The article raises the optimization idea and procedure of the public transportation network reliability. It expounded the important degree of the line in the net and the important degree of the unit of the line and gave the travel time reliability example to drive important degree formula. It established the urban public transportation network optimization model based on the reliability. This theory has important practical significance in optimizing public transit network and enhancing the level of public transportation services.