DISCLOSING THE DISASTERS INFORMATION TO PUBLIC VIA WEB GIS

本研究以横滨市为例，以灾害信息公开调查为目的，开发了基于GIS的灾害信息数据库及应用系统，以使居民对灾害信息的公开感到方便和安全。通过调查，利用居民房屋所在地与灾害图的关系，分析了居民对灾害认识的变化。同时，研究了人们对通过互联网披露这些信息的要求。因此，人们通过获得房屋周围的详细信息来进行适当的灾害识别，尽管许多人以前对灾害识别不清楚。很明显，许多人要求通过互联网披露这些信息。以自治防灾组织为对象，进行了第二次关于隐私和互联网信息的调查。本研究之结果为：网域与隐私的关系，以及依据个人隐私程度或需求选择媒体与显示方式的重要性。此外，对一些地方政府现有的地理信息进行了调查，并将GIS应用于防灾减灾工作。这些研究成果将有助于政府组织、地方政府和区域层面通过Web GIS、Internet GIS向公众公开灾害信息。

The purpose of this study is to research the disclosing the disaster information for residents to feel easy and safely.GIS based Disaster Information Database and Application System was developed for the survey to go public disaster information in the case of Yokoahama city. Through the survey the changes of disaster recognition are analyzed by the relationship between a place of people's house and hazard map. Also, people's request for disclosing this information via Internet was researched. As a result, people had proper disaster recognition by getting detailed information around house, though many people had unclear disaster recognition before. And it was obvious that many people requested to disclose this information via Internet. The second survey on privacy and information via Internet was conducted and taken Autonomous Disaster Prevention Organization as an object. The results of this survey were the relation between Domain and Privacy and the importance of chooses media and the display method according to the degree of privacy or needs of people. Moreover, the investigation of the existing geographic information and utilization GIS to disaster prevention at some local governments. These results will help government organization, local government and regional level to disclose disaster information to public via Web GIS, Internet GIS.