Citizen visualization of LIDAR data in Gipuzkoa. Democratization of access to 3D information

Abstract

The availability of 3D spatial data in the form of point clouds and BIM models has significantly increased in recent years, particularly due to the PNOA-LiDAR project and its third coverage cycle (2022–2025), which reaches densities of 5 points/m² or higher across the entire Spanish territory. This wealth of information creates clear opportunities for territorial analysis, urban planning, environmental management, risk prevention, and heritage conservation. However, it also presents a clear challenge: both the general public and many technical users are still unable to fully exploit these data, as their use depends on specialized software and highly specific technical expertise.