Study On Set The Reasonable Urban Rail Transit Station Spacing

In order to solve the increasingly serious traffic congestion problems, urban publictransport is concerned. Urban rail transit as the backbone of the public transport system, playsan irreplaceable role in solving the problem of traffic congestion.Rail transit station is set upreasonable or not will directly effect on fully play the role. The domestic and foreign scholarshave done extensive research about the average station spacing reasonable. However, thecalculated average station spacing not plays a guiding role in the actual layout site. To thisend, Based on the results of previous, studied the station spacing model of urban rail transitbased on the scale.First, on the basis of summarizing domestic rail station spacing theory, introduced therole and classification of urban rail transit station site, analysis of the station spacingcharacteristics and the impact of the numerical station spacing to the construction costs,analysis of the domestic and international urban rail transit station spacing，then analysis ofthe relevant factors effect on set up the rail transit station.In the second place, to discuss the pattern of city layout according to the shape of theouter contour of the city, the city is divided into three categories—circular, elliptical andrectangular cities, then to model solving radius of three types of cites. Afterwards, to analyzethe city that build rail transit, the influence of the sensitivity coefficient of the model, and todetermine the expression of the sensitivity coefficient to solve the model of average stationspacing of the different levels and different shapes of cities.Then, the rail transit station divided into three levels, according to the rail transit averagestation spacing based on the size of the city, as well as the length of the line, determine areasonable number of sites rail lines. Then the rail line divided into the hazard area and purearea, pure zone subdivided into viable area and connected areas. Then according to the road ifthere is a primary sites and secondary sites, the station spacing model is divided into foursituations solved in feasible region. First, find the location of the higher priority site, then theline will be divided into several segments, the next priority site is to solve in the everysegment[1].Lastly, with Changchun Light Rail Line4as a example, use Chapter III rail transit onurban scale model to proposed analyze the average station spacing suitable for Changchun railtransit. Use of station spacing model presented in Chapter IV, analysis the station layout of4th line. Then comparative analysis of the result of the calculation results of the model andlight rail line has been laid on the4th line, qualitative analysis of the differences between thesite location, Quantitative analysis of the technical indicators the peak fractional transport capacity and power train utilization. Through examples demonstrate the feasibility andeffectiveness of this model.