Abstract
Identifying and protecting traffic hub is vital to keep the stability and reliability of urban road traffic network. In this paper, a comprehensive evaluation method of node importance in urban road traffic network was introduced based on identification theory of key nodes in complex network. Firstly, taking into account the impact of road network topology and traffic flow characteristics on node’s capacity, node importance in topological network and betweenness, urban road grade and node traffic flow are selected as the evaluating indexes of node importance, and AHP is used to determine the weight of each index. Secondly, the associated value of the indexes are calculated and obtained based on SuperMap Deskpro and practical investigation, and then, combined with TOPSIS, a sequence of node importance is determined. Finally, we applied the method to part district of Hohhot road traffic network, it can be seen that the key nodes obtained with the method stay in the important position in the the traffic network and have greater traffic flow, the results showed it is effective and practical feasible.
Highlights
Complex networks are highly abstract of complex systems which often have a large number of nodes[1]
Wang Wei proposed that key node is refer to the node that is crucial to overall characteristic of network, and its damage will cause the loss of the function of network, simultaneously make the network connectivity, reliability and the road network performance drop rapidly[5]
In order to explore the method of identifying the vital nodes in urban road traffic network, this paper presented a kind of method of evaluating comprehensively the node importance of urban road traffic network
Summary
Complex networks are highly abstract of complex systems which often have a large number of nodes[1]. The research on the evaluation of node importance in urban road traffic network which is a kind of complex and integrated network is very pregnant. We can infer that the protection of the vital nodes in the urban traffic network has great significance to ease the congestion situation, improve the invulnerability ability and enhance the reliability of urban road traffic network. In order to explore the method of identifying the vital nodes in urban road traffic network, this paper presented a kind of method of evaluating comprehensively the node importance of urban road traffic network. This method will be introduced in the following
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
