Research Of Urban Rail Transit Line Collaborative Safety Operation Basing On Passenger Flow

As one of the main means of public transportation, the scale of urban rail transit is constantly expanding and being completed. Intertwined into the net, urban rail transit line is the foundation of massive urban rail transit network. Current research on urban rail transit line safety operation focus on efficiently carrying on transport task, however, the practice ignores requirements of passenger flow as a guider to reflection of safety operation. The paper pays attention to optimization of security cooperative operation in urban rail transit lines basing on passenger flow with mining accumulation characteristics of passenger flow and coordinating relationship between lines, which has important practical significance to balance traffic pressure, improve operation efficienc and guarantee safe operation.This paper deeply studies the operating risk characteristics of density in traffic line s wich directly reflect the clustered index of passenger flow basing on changes in temporal and spatial distribution characteristics of passenger flow and combined with collaborative operation theory of line and finally put up an optimization method of urban rail transit line operation basing on coordinated security operation of passenger flow. Specific content are as follows:1. Basing on analysing structure of urban rail traffic station, combined with moving patterns of train,the paper summarizes spatio-temporal changes features of platform passenger density and car passenger density and proposes security grade of passenger density and safety operation effected elements of line; 2. Basing on collaborative management theory and moving patterns of train, the paper will build a collaborative optimization model of interval and use fuzzy analysis theory to cope with different target requirements; 3. Apply instance to calculate the model of different interval length in an hour period and compare results to summary optimal sent strategy meeting different target requirements; 4 Follow the cooperative optimization theory and combined with elements of urban rail transit line safety operation, the paper puts up passenger flow control strategy including limited startup time, limiting speed of passengers at the level of urban rail traffic station and line.