Research on determination method for target speed of urban rail transit
The target speed of urban rail transit is the maximum operating speed that a train can reach on main line.It is an important basis for determining design standards,selecting operating modes,and estimating the scale of the project in its early stage.On the basis of analyzing the factors affecting the target speed,this article proposes a method for determining the speed target for urban rail transit lines,which revolves around master planning and project function orientation to propose operation range and time-consuming goals.Combined with analysis of multi-mode travel competition,the range of target speed is obtained.Then,based on station spacing,route conditions,route length,etc.,the range of target speed reaching,operation range and time-consuming goals matching,and time-saving effect are calculated at different operating speeds.The differences in engineering investment under different target speed are analyzed from the aspects of power supply,civil engineering,and vehicle order,that the reasonable target speed is determined through comprehensive comparison above.Then,taking the urban express line of a certain city as an example,the above method is used to determine its target speed,and the adaptability and rationality of target speed and operation mode selection are verified,in order to provide guidance for the selection of target speed for subsequent urban rail lines.
urban rail transittarget speeddetermination methodoperation range and time-consuming goalsroute conditionengineering investment
NETL
NSTL
万方数据
