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

本研究旨在利用调查资料，包括受灾车辆路线、出行时间及受灾路段的巨大拥堵程度，分析名古屋市区2000年9月发生暴雨灾害期间市民回家期间的道路交通状况及来往车辆来往路线。作为分析的结果，我们能够清楚地看到，这场暴雨对城市的交通网络产生了很大的影响。利用地理信息系统能够明确暴雨状态与路况之间的关系。

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.