EFFICIENT RISK DETERMINATION OF RISK OF ROAD BLOCKING BY MEANS OF MMS AND DATA OF BUILDINGS AND THEIR SURROUNDING

Abstract. Massive earthquake named “Tonankai Massive earthquake” is predicted to occur in the near future and is feared to cause severe damage in Kinki District . “Hanshin-Awaji Massive Earthquake” in 1995 destroyed most of the buildings constructed before 1981 and not complying with the latest earthquake resistance standards. Collapsed buildings blocked roads, obstructed evacuation, rescue and firefighting operations and inflicted further damages.To alleviate the damages, it is important to predict the points where collapsed buildings are likely block the roads and to take precautions in advance. But big cities have an expanse of urban areas with densely-distributed buildings, and it requires time and cost to check each and every building whether or not it will block the road.

In order to reduce blocked roads when a disaster strikes, we made a study and confirmed that the risk of road blocking can be determined easily by means of the latest technologies of survey and geographical information.