Feb 18, 2015 -- Kokusai Kogyo was tasked with creating a base map to help determine the extent of damage caused by landslides and flooding as a result of a typhoon and torrential rain in Japan, as well as to assist in plans to reduce the risk of secondary damage. Airborne LiDAR data was used to create a post disaster topographic map of the disaster area, which with conventional methods would have taken four to six months. Using airborne survey sensors avoided human alteration of the area and minimized the change to the natural environment.
By utilizing MicroStation to effectively manipulate and analyze the dense point-cloud data captured by airborne LiDAR sensor, as well as Bentley Pointools for the viewing, animation, and editing of the point clouds, Kokusai Kogyo managed to reduce the overall cost of the project by about 60 percent.
A topographic map was delivered in two months, two to four months less than a map created using conventional methods. This comprehensive map not only contributed to the rapid response and provided necessary geospatial insights for recovery and reconstruction work, but also contributed to future damage mitigation design work.