Methods of Calculating the Maximum Assembling on Urban Rail Transit Platforms

The changing of passenger flow is analyzed and simplified on urban rail transit platforms by stages.A method of calculating the maximum assembling on urban rail transit platforms with invariable train headway is given,under the circumstance that passengers get off the train before others get on.Further,after analyzing the distribution of train headways under the circumstance that deviations of train headways exist during train operations,a modified method of calculating the maximum assembling on platforms with deviations of train headways according to specified probabilities is given.In a case of an urban rail transit station,the maximum assembling on the island-platform of this station with deviations of train headways is calculated by methods before-mentioned.The maximum assembling on platforms obtained by calculate methods of this paper are smaller,compare with the calculate method given by current code for design of metro.