LiDAR models nature-based drainage

- Researchers used LiDAR and 3D simulations to model nature‑based drainage channels, testing flow and discharge before construction to reduce flood risk on site. - The study lets designers compare channel cross‑sections, vegetation roughness and outlet performance under storm scenarios prior to committing to earthworks and maintenance. - Early modelling helps avoid costly retrofit by validating discharge and erosion behaviour before excavation and rework. (x.com/SustBldgCan/status/2051272450361503794)