High-precision LiDAR survey for erosion analysis and risk mitigation
A parking lot presented a gully of considerable size, which constituted a structural and safety risk. The need was to obtain a detailed topographic survey to dimension the extent and depth of the erosion.
In-situ measurements were dangerous and logistically complex due to terrain instability. A Digital Elevation Model (DEM) and high-resolution contour lines with 25-centimeter precision were required for the development of a mitigation project.
Client
Construction Company
Location
Parking Lot, El Salvador
Duration
3 days
Type
Erosion analysis
We used a UAV platform with LiDAR technology to scan the affected area. The sensor's ability to capture high-density data in a single flight allowed us to obtain a point cloud with millions of XYZ coordinates that mapped the three-dimensional geometry of the gully with sub-centimeter precision.
Unlike photogrammetry, LiDAR technology was not affected by shadow conditions or lack of texture in the eroded earth, ensuring data integrity.
The project was executed in a three-day period without sacrificing data fidelity with reality, demonstrating the efficiency of the method.
25cm
Contour intervals
3
Days of work
100%
Data integrity
The speed in LiDAR data acquisition allows engineers and architects to advance the design of mitigation works almost immediately. Additionally, being an automated mechanism, it minimizes risks associated with workplace accidents when obtaining data due to terrain instability and allows complete access to the study surface.
Full geospatial survey of approximately 3,000 km of power lines for a major electricity distribution company in El Salvador.
Client: Electricity distribution company
Area: ~250 km²
Duration: 4 months
Result: ~3,000 km of power network mapped with LiDAR, DSM, and orthomosaic for vegetation management
Non-invasive documentation of pre-Hispanic heritage with LiDAR technology. An airborne LiDAR scanner was used to perform systematic scanning of four archaeological sites, mapping subtle topographic variations under dense vegetation.
Client: Ministry of Culture of El Salvador
Area: ≈237 blocks
Duration: Phase I
Result: Complete digital documentation of 4 archaeological sites
High-precision LiDAR survey for 170-block urbanization project
Client: Real Estate Developer
Area: 170 blocks
Duration: 2 weeks
Result: Project completed in 2 weeks with 25cm DEM resolution