Construction of Method for Comprehensive Priority Assessment of Road Maintenance Sections Using Network DEA

Abstract

In this paper, we construct a structural model of multiple main factors influencing road section traffic flow and safety, which could not be taken into account using conventional DEA. In this model, road sections are compared in terms of traffic flow and safety, and Network DEA is used to assess comprehensively the maintenance priority on the basis of these two parameters. In addition, the priority assessment of road maintenance sections was tested, taking 64 traffic census section locations from Sapporo City's densely inhabited district as a model case. From these results, we found that the maintenance priority becomes clear in cases where multiple factors are considered, and the usefulness of Network DEA is validated through the comparison of analysis results from conventional DEA and the proposed model