Standards Graph System of Road Infrastructure Maintenance and Management

Abstract:

To improve the consistency and integrality of the road infrastructure maintenance and management standard system， crucial standards which have an essential effect on infrastructure industry are explored and temporal and reginal characteristics of the standard system are analyzed in this paper. After establishing a standard graph of road infrastructure maintenance and management， an importance analysis on key nodes in the complex network is made to find the important， representative and authoritative standards by using the degree centrality， semi-local centrality and PageRank algorithm. And the technique for order preference by similarity to an ideal solution（TOPSIS） is introduced for comprehensive evaluation. In addition， a word cloud-based frequency statistics method is used to analyze the hotspots of standard topics in different time periods and three different geographical zones， acquiring characteristics on maintenance objects and technologies. By establishing a road maintenance management standard graph， the correlation and context of road infrastructure maintenance and management standards are sorted out， providing an important reference for the improvement of the standard system.

Key words:traffic engineering;road infrastructure maintenance and management;standard graph;complex network analysis;key nodes