Major Hazard Assessment And Information System

Along with our country economic and social development of rapid, disasters caused casualties and property losses were also on the rise year by year, particularly major disasters caused by the killing and injuring many people and the property loss is a serious impact on China's economic construction. Can prior to the occurrence of disasters, grasp and control major hazard sources, and to eradicate it in the bud, nip it in the bud. become a matter of concern and discussion of the issues, a major source of risk assessment of the issue is also for this reason has been made.GIS After nearly 40 years of development, has been integrated into the various aspects of social life. Technology All departments and industries are also making extensive use of this technique to the solution of their own problems. GIS because of its spatial data analysis capabilities, the fire system has been widely used. Put introduce. GIS to assess the source of fire danger, design developed a major source of risk information system, this paper will focus on solving the.Construction is a major source of risk assessment model, design a major source of information systems risk, Description focus on the Dijkstra algorithm based on the fire optimal path analysis, of the existing fire station reach an assessment.