Simulation Study of Passenger Flow Characteristics in Subway Passage

The characteristic of passenger flow in subway passage is an important factor in allocating transfer facilities, evaluating service level and increasing operational efficiency. This paper took the example of Dongzhimen subway station in Beijing as simulation scenario. A simulation model of passenger flow in transfer passage was developed using Anylogic software. An optimized path-choice algorithm had been made to improve the Anylogic, avoiding passenger congestion in the simulation. Through survey data, parameters in the model were calibrated and the model validation was proved. Moreover, the paper analyzed the sensitivity of passage width and width proportion of different transfer directions. The results show that: the improved simulation model has greatly relieved the blocked condition in the passage, caused by the original shortest path-choice algorithm in Anylogic model; the simulation data is in accord with measured data, verifying that the model is applicable in practice. From the sensitivity analysis, it is found that when passage width varies from 5 m to 7 m, the passenger intensity decreases, but the rate of the change increases first and decreases afterwards with the increasing passage width; when the bidirectional passenger volume is high, the variation of width proportion of different transfer directions has an obvious effect on passenger density and passenger intensity.