The Edge Importance Evaluation of Compound Network Formed by Comprehensive Transportation Network

On the basis of complex network theory, the edge importance evaluation method of compound network formed by comprehensive transportation network is studied. First, combining the characteristic of comprehensive transportation network, the different network topology extraction methods are analyzed. Then the extraction method of compound network topology is determined, and the compound network of comprehensive transportation network is proposed. Second, considering different transportation ways’ factors of network size, running speed and turnover volume of passenger and goods etc., the weight computation formula of every sub-network topology edge is constructed. Third, dual weighted node degree and weighted node betweenness are chosen as evaluation index which are used to evaluate the edge importance of compound network. Finally, Jing-Jin-Ji region comprehensive transportation network is chosen as empirical study. The result proves that the method proposed in this paper is feasible and effective, and the assessment results are in line with the actual situation.