CONSTRUCTION OF 3D GIS FOR THE EFFICIENT EXPRESSION OF FACILITY RISKS AND FLOOD DATA IN FLOOD DISASTERS

摘要

For large-scale water disasters induced by the abrupt climate change, various relevant studies on damage prediction and prevention have been actively conducted. Such disasters bring about casualties and property damage at the same time, and damage to SOC facilities that are directly or indirectly connected has continuously increased. Diverse information relevant to water disasters can be practically obtained on land, and GIS connection is essential in order to provide intuitive information. In addition, considering that the damage induced by water disasters affect buildings and citizens on the land, GIS mashup of diverse information is expected to be a solution for effective information analysis/prediction and countermeasure. The present study aims to establish a three-dimensional geographic information system that combines the facility information and damage information under a flood disaster situation that can be obtained on land, based on research in the three-dimensional GIS engine field, which is growing internationally. This could contribute to direct flood damage, and could also provide a control tower system that enables a water disaster manager to make a prompt decision.