STUDY ON ROAD TRAFFIC SITUATION OF TRAVEL TIMES AND ROUTES OF CARS UNDER THE DOWBPOUR DISASTER IN TOKAI AREA

本研究以2000年9月发生在名古屋市区市民回家时段的暴雨灾害为研究对象，利用灾害发生时的车辆路线、出行时间、巨大拥堵路段等调查数据，分析暴雨灾害发生时的道路交通状况及始发地与目的地之间的车辆路线。通过分析，我们可以清楚地看到，暴雨对城市交通网络的影响很大。利用GIS可以明确暴雨状态与道路状况之间的关系。

In this study, we aim to analyze road traffic situation and routes of cars between origin and destination under the downpour disaster occurred in the time period for citizens going home in Nagoya city area, September 2000, by using survey data including the routes of cars, travel times and a huge congestion road sections under the disaster. As a result of analysis, we were able to make obvious that the downpour had great influence on transportation networks in the city. And a relation between a heavy rain state and a road situation was able to be clarified by using GIS.