The Study on Spatial Data of Across-district Emergency Response Information Sharing System

Across-district emergency response is the mode of calling for different geographical emergency department to respond as a united system when the response area is insufficient force in tackling emergency situations. In this paper, which major in database layer and application layer, presents a scheme of emergency response transaction and information sharing system based on WebGIS and service technology. The emergency response information sharing system's database is composed of spatial data and attribute data. And there is especial an issue database, which is used for promulgate the emergency response data. ArcIMS is used to connect and management the data center and clients. ArcIMS application server in charge of receiving clients' requests, load balance, service management and pass the request to special data server. The spatial data server processes the requests and then returns the data to client using ArcXML message style. ArcIMS supports lots of terminal types include HTML browser, JAVA browser and GIS browser, etc.