Rockfalls and unstable slopes pose a serious threat to people and property along roads/highways in the southwestern mountainous regions of Saudi Arabia. In this study, the application of terrestrial light detection and ranging (LiDAR) technology was applied aiming to propose a strategy to analyze and accurately depict the detection of rockfall changes, calculation of rockfall volume, and evaluate rockfall hazards along the Habs Road, Jazan Region, Saudi Arabia. A series of temporal LiDAR scans were acquired at three selected sites. Our results show that these three sites have different degrees of hazard due to their geological differences. The mean volume loss of sites A1, A2, and A3 is 327.1, 424.4, and 3.7 L, respectively. Statistical analysis confirms the significance of the influence of site type on rockfall volume, with a probability value of < 0.0105. The rockfall volume and change detection values are then correlated with precipitation, which is a triggering factor. The study also reveals that the use of terrestrial LiDAR could reduce time and effort, increase accessibility, and produce effective solutions. LiDAR could be an indispensable tool for disaster risk assessment, response and recovery process.

落石和不稳定的斜坡对沙特阿拉伯西南山区道路/高速公路沿线的人员和财产构成严重威胁。在这项研究中，应用地面光探测和测距 (LiDAR) 技术，旨在提出一种策略来分析和准确描述吉赞地区哈布斯路沿线的落石变化检测、落石量计算和落石危险评估。 ， 沙特阿拉伯。在三个选定的地点进行了一系列时间 LiDAR 扫描。我们的研究结果表明，这三个地点由于地质差异而具有不同程度的危害。位点 A1、A2 和 A3 的平均体积损失分别为 327.1、424.4 和 3.7 L。统计分析证实了场地类型对落石量影响的重要性，概率值 < 0.0105。然后将落石量和变化检测值与作为触发因素的降水相关联。该研究还表明，使用地面激光雷达可以减少时间和精力，增加可访问性并产生有效的解决方案。激光雷达可以成为灾害风险评估、响应和恢复过程中不可或缺的工具。