2023 Volume 79 Issue 22 Article ID: 22-22019
In Japan, block walls are commonly used to separate structures.They exhibit excellent safety and security features, but may collapse in the event of a disaster, impeding the passage of emergency vehicles and the evacuation of people. To address this problem, we propose a technique to extract the position and inclination of block walls automatically based on point cloud data, with the aim of facilitating their maintenance and management.Further more refinement of this technology to evaluate the possibility of blockage of adjacent roads caused by the collapse of a block wall based on point cloud data is expected to enable the development of more appropriate evacuation routes. Therefore, in this study, the authors develop a technique to determine road closures caused by collapsed block walls based on point cloud data.
