Research On Y-line Train Routing Of Urban Rail Transit

With the development of economy, the urbanization speeds rapidly in China. In order tomeet the requirement of urban construction a large number of rural people move into thecities, as well as the urban population grows what makes the number of city increase,especially for large city. As the number of motor vehicles and population in these citiesincrease day by day, urban traffic congestion problems have emerged and become more andmore serious when the construction of urban roads can not keep up with demand for urbandevelopment, which restricts the development of city. The urban traffic development needsnew transport that has the characteristics of Large volume, low energy consumption, safe,reliable, simple and convenient. Basing on such background, people realize that Developingurban rail transit system is the only way to solve the problems, as well as to achieve theSustainable development of urban economy. The construction of urban rail transit networkand post-operational management is continuous, differing from state-owned railway systemand urban public transport systems. The research in urban mass transit would be wildlyconcerned if related system operates well.This paper analyzes the Y-line routing plan of rail transit that gradually changes fromsingle line to network line in the development of rail transit basing on the researches domesticand abroad on routing plan of it. the paper introduces the common forms of rail transit routinglines as well as analyzes the formation of Y-line and factors of it. in the end, the paper givesout the contrast and choice of the routing plan according to the main factors. In the result, itdefines an optimization model taking the passenger satisfaction and unit operating costs as theobjective function as well as the train interval as matching relationship between lines, whichtransforms the multi-objective planning into single objective planning.