Research On Bus Route Optimization Based On The Urban Rail Transit

With the rapid development of the major urban rail transit, it shared more of the urban daily travel choice and released the urban road congestion situation. Rail transit will compet with the existing regular bus station which is along the line during the operation. But, as the characteristics of regular bus and rail transit are different, neither of the two ways can meet the traveling needs of the different passengers alone. Only by optimizing the regular bus, adjusting it to working with rail transit together effectively and reducing competition between the them, can make them to play the respective roles and maximize the benefits also reach the purposes of mutual development and harmonious coexistence.Firstly, the paper analysises the urban rail transit system and regular bus system, then, compares the characteristics of rail transit and regular bus, combined with the attractive range, locates rail transit and regual bus. By analysising their positions with the optimization principles, goals and constraints of line network, gets the optimization methods about the bus routes.In the aspect of new feeder bus route optimization, the paper set the optimization selection model with the goal of maximuming the total turnover tranffic, using the known OD data, transforma the model into the one with the goal of maximum efficiency and uses Lingo software and selects one rail feeder area of the site to solve the model, getting the optimal pick up line in the region. Combined with optimization theory, methods, practical situations and experiences, gives advices of new feeder bus route in the case without the OD data.Finally, the paper analyzs the upcoming Dalian Metro Lines1and2as an example to adjust the optimization of picking up new bus line.