Research On The Planning And Construction Of A Fast Track Traffic Engineering

Nansha district is an important support guangzhou economic future,the distance of time and space limits the nansha development of free trade zone,both rail traffic planning is not adapt to the nansha district new planning and positioning,to carry out rapid rail traffic engineering planning and construction problems related to research,this study for the future similar project development has a certain reference value.In urban planning analysis and related on the basis of analysis of the rail transit planning,this study adopts the urban rail traffic simulation calculation for existing railway-speed-increasing scheme,selection of new line vehicle system are studied,and the prediction model,to evaluate system transport capacity,the final verification through the study of construction problems related to engineering practical.Firstly,we study the acceleration of existing rail transit line 4.Through the research,the scheme of replacing 110km/h linear motor vehicle system,and the scheme of setting up the running of the fast and slow train of the line,the speed of acceleration is not good,the operation is affected,the investment is large and the value is not implemented;It can save up to 8min(about 17%)and have no investment,and have certain optimization value.Visible both rail transit line is limited by the matching problem of vehicle system and line conditions,and by changing the vehicle system is not recommended or speed circuit conditions show that the should through the adjustment of operation organization scheme optimization.Secondly,according to the current domestic and foreign high-speed train technology,the selection of 140km/h-350km/h speed grade train system is studied respectively.According to the research,the 160km/h speed class train system has a great advantage in the system capability of the system in terms of the line condition and station condition of the planning scheme,which should be the optimal choice of the vehicle system selection.Visible and high-speed rail system of urban rail line area,vehicle system,the design of station and line conditions are the controlling factors,vehicle system selection should avoid excess capacity,in order to improve the operating efficiency,guarantee the sustainable development of the project.It is recommended that the relevant rail vehicle manufacturers carry out the research on the 160km/h speed class train system suitable for the operation of urban rail line.In the end,the construction of 160km/h speed grade train system for the new rail transit line 18 and 22 is studied.Studies,the line,civil engineering,construction,investment and construction scheme,and line up the terminal connected to the center city comprehensive transport hub,panyu square-white sand section USES the collinear dual mode operation,range,has engineering practical.Should change the existing planning idea and construction mode,urban rail line area should be connected to the city center in order to improve the service level,urban rail district line operation mode should be diversified,to improve the efficiency of the construction and operation.Through this study,improve the service level of the nansha district both rail transit and promote the nansha new area construction of rapid rail traffic engineering,and high-speed railway system in the application of domestic urban rail transit.