We do not sub-contract the survey. CDG (Laos) mobilises its own technical survey team and specialised equipment — LiDAR-equipped UAV platforms, single-beam echo sounders, RTK GNSS systems and supporting geodetic instrumentation — for topographic, bathymetric and corridor survey work.
Fixed-wing and rotary UAV platforms with high-pulse-rate LiDAR sensors and integrated GNSS/IMU positioning, flown with a minimum 60% side-lap for bare-earth extraction under vegetation.
High-accuracy LiDAR and photogrammetry mapping with RTK/PPK GNSS, high-density point cloud generation and RGB imagery acquisition.
VTOL fixed-wing platform for large-area corridor and topographic mapping, where endurance and coverage per flight matter more than hover time.
Vessel-mounted hydrographic systems integrating multi-frequency single-beam echo sounders with RTK GNSS positioning, for cross-sections perpendicular to flow direction.
Cross-sections run from top-of-bank, through the submerged channel thalweg, to top-of-bank on the opposite side — so the sounding data overlaps the airborne LiDAR and the two merge into one watertight, continuous surface.
LiDAR point cloud processing and classification for MicroStation.
Spatial analysis, cartography and data publishing.
Precise survey processing, with levelling processing licences.
Static baseline and satellite data processing for control networks.
Tell us the corridor, the accuracy you need and the deadline — we will size the team and the kit.