Exploring the Multi-Layer Structural Properties of the Bus-Subway Transportation Network of Shanghai

Buses and subways are essential to urban public transportation systems an important engine for activating high-quality development. Traditional multi-modal networks focus on the structural feature mining of single-layer or each layer, ignoring association multi-layer networks. In this paper, we examined property bus-subway network Shanghai at both global nodal scales. A dual-layer model city’s bus subway system was built. Single-layer complex indicators were also extended. The paper explored spatial coupling properties identified its primary traffic nodes. It found that 1) increased network’s connectivity a certain extent broke through limitation in terms physical structure, making connection between any two locations more direct. 2) changed topological characteristics transit network, increasing centrality value bit order degree centrality, betweenness closeness different degrees, tend converge city center distribution. Enhancing management critical nodes would help integrated operate effectively provide higher-quality services.