.svg){kind=icon}
Large-scale topographic surveys cover extensive areas proposed subdivisions, commercial and industrial sites, rural blocks, or infrastructure corridors. They capture the overall terrain, drainage patterns, natural features, and existing infrastructure across tens of hectares, providing the data foundation for earthworks design, road planning, and drainage engineering.
Big sites need big-picture data. An accurate largescale survey uncovers constraints hidden gullies, overland flow paths, poorly mapped existing services before design begins. Discovering these during construction is far more expensive than discovering them on a contour map. Engineers and planners need reliable models to produce designs that actually work on the ground.
For large sites, we deploy UAV drones to capture a base terrain model quickly, supplemented by targeted ground surveys at critical points, utility invert levels, drainage features, and areas where dense vegetation limits the drone. This hybrid approach lets us map a 50hectare site in a fraction of the time of a pure ground survey, while maintaining accuracy verified by ground control points. We produce contour maps, orthophoto maps, and digital terrain models ready for engineering software. We integrate seamlessly with your design team because a survey that requires extensive processing or interpretation before it can be used defeats its own purpose.
