Assessment of Street Network Accessibility in Tokyo Metropolitan Area After a Large Earthquake
Toshihiro Osaragi†, Maki Kishimoto, and Takuya Oki
Tokyo Institute of Technology
2-12-1-M1-25, Ookayama, Meguro-ku, Tokyo 152-8550, Japan
It is difficult to evaluate the street network accessibility after a large earthquake occurs. In this paper, we construct a model to evaluate the street network accessibility for wide-area emergency behaviors under the condition of property damage in the Tokyo Metropolitan Area after a large earthquake. Additionally, we analyze the relationships between a local environment and street network accessibility by using multiple regression analysis. Finally, we discuss some important factors for evaluating risk mitigation strategies.
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