Information Model Based On Life Cycle Of Medium-sized City Transit Network Planning Theory And Practice

With the continuous development of urban traffic,the advantage of public transport as the main mode of transportation is more and more obvious.In view of the public transport planning has become an effective method to relieve urban traffic pressure and improve the efficiency of travel.It is benefit for improving the level of bus service,reducing the costs of operating and improving the running efficiency of public transport system to research the processing of city bus.In this paper,according to the development characteristics of the medium-sized city,putting a set of comparatively effective construction scheme of whole life cycle of city bus on the basis of summing up predecessors' experience.First,reference the application of BIM in construction industry to establish bus information exchange platform construction.According to the time,the city bus construction is divided into three phases,four steps and clarifying the responsibilities of each participant in each step.Second,a medium-sized city,for example,we will expound the bus design on city bus design phase.According to the analysis of current this city bus operation,to design of urban public transport,urban transit network organization structure form,design of bus lines and terminal,and establish the diagnosis method of the bus problem and diagnosis index standard.Then,in view of the phasing of the bus operation stages,through brought to hand over the specific investigation,and put forward from two aspects of circuit layout and bus operating line adjustment method,and compares them to the line after the adjustment.Finally,in view of the departure intervals,through programming optimization genetic algorithm,get the residents more satisfied and take into consideration the departure intervals in enterprise cost.For some big station express line is opened,the trip will be selected based on the Logit model,through the parameters calibration and model test,the conclusion residents to choose the significant influencing factors of big station express way,and sums up the big station express site layout principles.Through study of a medium-sized city bus construction process,we will get a set of relatively complete and effective scheme of urban transit construction process,which can be taken as reference to other medium in the development of city bus.And it has most important significance for planning urban traffic,enhancing the travel efficiency,reducing the pressure on urban traffic and lowering the operating costs for the bus.