Carrying capacity calculation method of subway-bus composite network in severe cold city

Abstract:

For constructing the urban public transportation network that is more in line with the actual transfer willingness of residents, on the basis of the space-M method of complex network theory, the connecting edge rule of two-layer network with carrying capacity as edge weights was proposed considering the travel characteristics of urban residents in alpine area. The weighted two-layer network model of subway-bus network was constructed, and the statistical characteristics and carrying capacity calculation method were given. According to the survey of transfer willingness of residents, the transfer willingness of subway-bus stations varied obviously in different seasons. Then, taking the subway-bus network in Harbin as an example, the overall carrying capacity, edge carrying capacity, and node carrying capacity in winter and other seasons were compared, and the robustness of the network was analyzed. Results show that the overall carrying capacity of Harbin subway-bus network in winter was 7 960 594 person/h, which was lower than that in other seasons (8 338 903 person/h). Therefore, for alpine cities, more favorable management and control measures for subway and conventional public transportation should be implemented in winter to improve network carrying capacity.