Support system for snow disaster-mitigation in urban area considering transition of social environment

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The results obtained in the study are summarized as follows :(1) We investigated the actual conditions of life environmental obstacles caused by torrential snow drift, and discussed how to reduce snow disasters.(2) A study of regional snow risk evaluation should be done with an emphasis on the sequence of disaster. We constructed a risk evaluation method considering uncertainly of snow drift, and compared the evaluation results with the actual snow damage data.(3) We applied the Neural Computing technique to the prediction of the depth of snow deposit, and the predicted results were in a good agreement with the observed data.(4) In order to consider social environment and urban planning in the aged, the rearrangment of infrastructure concerning the change of lifestyle structure was investigated.(5) The policy of snow disaster reduction by the local city's government or the agreement of the people was analyzed considering the aging society in future.(6) We investigated the actual conditions of snow removal on the roof or in the street at the front of the house.(7) From the viewpoint of meteorological, geographical and social environment, mitigation of disaster in an earthquake in snow area was also discussed.