Greater Dhaka Bus Rapid Transit Depots & Corridors
Approx. 200 km road survey using RTK and RTK-enabled UAV under DSCC jurisdiction by DTCA for bus route rationalization and transit terminal hubs.
High-Precision Ground Truth in Challenging Environments
Bangladesh’s dynamic terrain—ranging from rapid delta sediment shifts and complex riverbanks to densely populated urban utility mazes—demands uncompromising measurement accuracy. Geospatial Works deployed advanced geodetic positioning, sensor fusion, and multi-temporal photogrammetry to provide actionable spatial intelligence for this landmark initiative.
Complex Terrain, Dense Infrastructure & Strict Tolerances
The client required sub-centimeter horizontal alignment and millimetric vertical datum benchmarking under tight project deadlines. Traditional surveying methodologies were impeded by seasonal water level fluctuations, vegetative canopy interference, and high-traffic arterial obstructions.
How Geospatial Works Delivered
Our survey engineers designed a hybrid observation matrix combining dual-frequency GNSS RTK base/rover setups, airborne UAV photogrammetry, and specialized acoustic or electromagnetic detection instruments:
Tied directly to national Survey of Bangladesh (SOB) benchmarks with rigorous closed-loop traverse validation.
High-density point clouds classified into ground, vegetation, and structural layers for precise digital terrain generation.
Non-destructive underground utility detection combined with calibrated bathymetric echo soundings.
Seamless spatial geodatabases compatible with AutoCAD Civil 3D, ArcGIS Pro, and web digital twins.
Verified Client Deliverables
200 km route centerline profiles, UAV orthomosaics, georeferenced road network shapefiles, and corridor cross-sections.
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