EVALUATION OF IMPROVEMENT PROJECTS IN DENSELY BUILT-UP WOODEN RESIDENTIAL AREA IN TERMS OF DIFFICULTY IN WIDE-AREA EVACUATION

Abstract

In high-density wooden residential areas, some aspects of spatial characteristics must be improved to safeguard against high risks which may occur in a major earthquake. However, improvements have not been steadily performed due to the lack of cost-benefit analysis on improvement projects. In this paper, we evaluated past improvement projects in terms of difficulty in wide-area evacuation by using a multi-agent simulation model. Results showed that some buildings where residents have difficulty in evacuating have not been improved by these projects, and this risk can be reduced by shortening the street length which these buildings are adjacent to.