Modeling and Simulation of Standing Passengers’Space Comfort in Subway Carriage
Author(s): WU Qi-bing, CHEN Feng, LIU Ou-yang, FANG Ji-ping, LI Xiao-hong
Pages: 126-132
Year: 2014 Issue: 5
Journal: Journal of Transportation Systems Engineering and Information Technology
Keyword: urban traffic; crowding force model; social force; passenger space; psychological comfort; particle follow;
Abstract: Passengers’comfort declines when passengers are in a crowded subway carriage. According to the concept of body space bubble and the psychological comfort of passengers in the subway carriage, with the investigation of passengers’perceptive space comfort, the theory model of passenger space is established in this paper, and then the standing passenger density evaluation criteria based on space comfort is obtained. Based on the existing pedestrian model, a generalized crowding force is defined by learning the repulsion in the social force model, and a passenger crowding force model in subway carriage is established. Beijing Metro Line 4 is selected for case study. Combined with the passenger density distribution law by the spot investigation, the discrete element software of PFC2D is used to simulate passengers’space comfort by force modality. The results show that the reasonable standing passenger density should be between 4-5 person/m2 when the space comfort grade of 80%of passengers is above comfortable, and the results can provide reference for setting the standard of standing passenger density.
Pages: 126-132
Year: 2014 Issue: 5
Journal: Journal of Transportation Systems Engineering and Information Technology
Keyword: urban traffic; crowding force model; social force; passenger space; psychological comfort; particle follow;
Abstract: Passengers’comfort declines when passengers are in a crowded subway carriage. According to the concept of body space bubble and the psychological comfort of passengers in the subway carriage, with the investigation of passengers’perceptive space comfort, the theory model of passenger space is established in this paper, and then the standing passenger density evaluation criteria based on space comfort is obtained. Based on the existing pedestrian model, a generalized crowding force is defined by learning the repulsion in the social force model, and a passenger crowding force model in subway carriage is established. Beijing Metro Line 4 is selected for case study. Combined with the passenger density distribution law by the spot investigation, the discrete element software of PFC2D is used to simulate passengers’space comfort by force modality. The results show that the reasonable standing passenger density should be between 4-5 person/m2 when the space comfort grade of 80%of passengers is above comfortable, and the results can provide reference for setting the standard of standing passenger density.
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