Optimization and Coordination of Urban Railway Last Train Timetable

In the last train time of the urban railway transits, the timetable optimization should first ensure the reachability of passengers. Due to the uncertain connection order of train in each line, in this paper, a 0–1 variable is introduced to describe the convergence of trains in the last train time and to establish a network transfer model. By adjusting the departure time of the train, a timetable optimization model with the objective of connecting maximum passengers is presented and solved by genetic algorithm. Finally, based on the analysis of the important transfer stations in Chengdu Metro Network, the validity of the model is verified. The results show that the overall number of connected passengers increased by 17.6%. This model can effectively improve the accessibility of passengers.