Equipped with downward-facing LiDAR sensors or cameras for collecting data, unmanned aerial vehicles (UAVs), including drones or unmanned aerial systems (UAS), are another tool that TWM uses to take aerial views of a job site. These tools carry out topographic surveys in a fraction of the time as traditional methods. The ground is photographed several times from multiple vantage points and each angle is geo-tagged with coordinates to produce thousands of measurements. From this data, detailed 3D maps/models of the project area can be produced and used to extract information.
Our Riegl-based LiDAR sensors can scan the ground from the sky, seeing past vegetation to get a bare-earth model. Equipped with high-end IMUs, we can generate survey-grade, design-ready topographic surveys of practically any site.
With aerial mapping, drones can fly at low altitude and capture data throughout any atmospheric conditions or unsafe areas, such as steep slopes, harsh terrain, or otherwise inaccessible areas. Consistent and high-accuracy outputs result in greater flexibility and cost-effectiveness on projects of almost any size.