Measuring Road Network Vulnerability with Sensitivity Analysis.

ABSTRACT: This paper focuses on the development of a method for road network vulnerability analysis, from the perspective of capacity degradation, which seeks to identify the critical infrastructures in the road network and the operational performance of the whole traffic system. This research involves defining the traffic utility index and modeling vulnerability of road segment, route, OD (Origin Destination) pair and road network. Meanwhile, sensitivity analysis method is utilized to calculate the change of traffic utility index due to capacity degradation. This method, compared to traditional traffic assignment, can improve calculation efficiency and make the application of vulnerability analysis to large actual road network possible. Finally, all the above models and calculation method is applie

SUBMITTER: Jun-Qiang L 

PROVIDER: S-EPMC5268385 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature