Debris scattering is one of the main causes of road/street blockage after earthquakes in dense urban areas. Therefore, the evaluation of debris scattering is crucial for decision makers and for producing an effective emergency response. In this vein, this article presents the following: (1) statistical data concerning the debris extent of collapsed buildings caused by the 2016 Mw 7.0 Kumamoto earthquake in Japan; (2) an investigation of the factors influencing the extent of debris; (3) probability functions for the debris extent; and (4) applications in the evaluation of road networks. To accomplish these tasks, LiDAR data and aerial photos acquired before and after the mainshock (16 April 2016) were used. This valuable dataset gives us the opportunity to accurately quantify the relationship between the debris extent and the geometrical properties of buildings.

中文翻译：

---

日本木结构建筑地震碎片范围统计分析及其在路网中的应用

碎片散落是密集城市地区地震后道路/街道堵塞的主要原因之一。因此，碎片散落的评估对于决策者和产生有效的应急响应至关重要。本着这一思路，本文提出了以下内容：（1）2016 年日本熊本 7.0 级地震倒塌建筑物残骸范围的统计数据；(2)影响碎片范围的因素调查；(3) 碎片范围的概率函数；(4) 在道路网络评价中的应用。为了完成这些任务，使用了主震前后（2016 年 4 月 16 日）获得的 LiDAR 数据和航拍照片。