关键词: 交通工程, 可靠性, 复杂网络, 城市轨道交通, 有权网络

Abstract:

Since the importance of urban rail transit lines and stations in the network structure are affected by the passenger flow volume, the reliability evaluation only from the network structure may produce misjudgments. In this paper, a weighted network model with section passenger flow as edge weight of urban rail transit is constructed based on the metro smart card. For the unweight network and weighted network, the network characteristic parameters and failure strategy parameters are determined. Based on four cascading failure strategies, a network reliability model is constructed. To compare the reliability of these two kinds of networks, taking the case of Beijing Subway as an example, the results show that under the same attack mode, the network vulnerability and the importance sort of stations have larger variety in weighted network. So, the weighted network can reflect the reliability of real network more accurately. The validity of the model is verified, which makes up the gaps in reliability research of urban rail transit network.

Key words: traffic engineering, reliability, complex network, urban rail transit, weighted network