Study On General Public Transit Optimizing Means For Coast Medium-Sized Cities

As the basis of the urban transportation planning, the public transportation network planning is not only give expression to the regulation of the urban passenger production and distribution, but also reflect the transportation change tendency in future, Developing the urban transportation, raising the rate of the bus, reducing the rate of bike, making the transportation network more reasonable and science, is very important. One of the fundamental contents of priority for public transport is to optimize the bus network, it is the basis for developing the public transport system service level and competition, which is important to resolve the general problems of traffic congestion.In this paper, on the condition of given road network and public transit passenger volume distributing, It is a useful method for solving the urban traffic problems by optimizing the public traffic network and effectively using the traffic source. After studying the main content, principle, objective and restriction condition of the public traffic network optimization, and considering the passenger's travel time, public traffic network density, public traffic cooperation benefit and the entire city transportation system affected by the public traffic network arrangement, authors have set up the function formula of the optimization objective, restriction condition's formula, much object model of the public traffic network optimization. As a example, the improved model is put forward for Weihai city's transportation network planning and many indicator to estimate the result. A satisfactory result is obtained.Public transit routes network planning is a system engineering, Every planning tache is a important constitute part importantly. Therefore , It analysis and improve on model for public transit routes network point of origin and destination, and distribute the OD matrix of passenger flux from the small areas to node. It research the passenger flux distribute model of public traffic, and analysis the model of public traffic station. Built reasonable model of public transit station distance, and analysis the optimization of bus station...