JSTE Journal of Traffic Engineering
Online ISSN : 2187-2929
ISSN-L : 2187-2929
Special Edition A (Research Paper)
A Study of Evacuation Plan considering Road Disruption Measures in Densely Built-up Wooden Areas in a Large-Scale Earthquake
Jun SAKAMOTORen IWAINozomu NAGATA
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JOURNAL FREE ACCESS

2021 Volume 7 Issue 2 Pages A_263-A_269

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Abstract

In the event of a large-scale earthquake in a densely built-up area of wood, road blockages due to the collapse of houses may hinder evacuation. Local governments are taking measures such as earthquake resistance for dwellings that may collapse. Still, they have not adequately responded due to the difficult financial situation in recent years.

This study proposes a method for road blockage countermeasures during a large-scale earthquake. First, it calculates the possibility that residents can reach the evacuation site after the disaster using the census, digital road map, and each section's road blockage rate. Next, it considers the priority of road blockage measures that can efficiently increase the number of evacuees, taking into account local governments' financial constraints.

The proposed method applied to the earthquake and fire priority countermeasure area in Kochi City as the case study area. As a result, it founded that it is efficient to take priority measures from the section where the number of people who can evacuate is the largest, the road blockage rate is high, or the frequently used route from each point to the evacuation site.

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© 2021 Japan Society of Traffic Engineers
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