RT info:eu-repo/semantics/article T1 Road safety evaluation through automatic extraction of road horizontal alignments from Mobile LiDAR System and inductive reasoning based on a decision tree A1 José Antonio, Martín-Jimenez A1 Santiago, Zazo A1 José Juan, Arranz Justel A1 Pablo, Rodríguez-Gonzálvez A1 Diego, González-Aguilera A2 Ingeniería CartograficaGeodesica y Fotogrametria K1 Cartografía K1 Road safety K1 Decision tree K1 Geometric design consistency K1 Horizontal alignment parameters K1 Mobile LiDAR System AB Safe roads are a necessity for any society because of the high social costs of traffic accidents. This challenge is addressed by a novel methodology that allows us to evaluate road safety from Mobile LiDAR System data, taking advantage of the road alignment due to its influence on the accident rate. Automation is obtained through an inductive reasoning process based on a decision tree that provides a potential risk assessment. To achieve this, a 3D point cloud is classified by an iterative and incremental algorithm based on a 2.5D and 3D Delaunay triangulation, which apply different algorithms sequentially. Next, an automatic extraction process of road horizontal alignment parameters is developed to obtain geometric consistency indexes, based on a joint triple stability criterion. Likewise, this work aims to provide a powerful and effective preventive and/or predictive tool for road safety inspections. The proposed methodology was implemented on three stretches of Spanish roads, each with different traffic conditions that represent the most common road types. The developed methodology was successfully validated through as-built road projects, which were considered as “ground truth.” PB Elsevier YR 2019 FD 2019-07-04 LK http://hdl.handle.net/10612/10998 UL http://hdl.handle.net/10612/10998 NO ISPRS Journal of Photogrammetry & Remote Sensing NO 13 p. DS BULERIA. Repositorio Institucional de la Universidad de León RD 25-abr-2024