UAV Maps Landslide on Czech Highway - 02/06/2014
Upvision, a UAS company in the Czech Republic, last month used a UAV to map a landslide on the country's D8 highway. The slope landslide buried part of the highway, which is currently under construction, at the village of Litochovice, close to the city of Litomerice, in June 2013 after heavy rainfall.
Highway D8 is being built to connect Prague with north-western Czech agglomerations and Saxony in Germany. The route through the Czech Central Mountains has been the subject of disputes since the 1990s. Since then, vehicular traffic to Germany has increased, with more than 10,000 cars a day detouring through the cities of Usti nad Labem and Teplice.
In addition to classic aerial photographs and aerial video of the landslide, an unmanned aerial vehicle was used to gain a real overview of the current situation. During the flight, the entire location of the landslide was mapped, including the adjacent quarry.
The collected data was used to create an orthophotomap in the image resolution of 7cm/pixel as well as a digital surface model as a point cloud and 3D model.
These complex data visualisations can be used for technical applications, such as vectorisation in the range of digital maps, the landslide volume calculations, terrain profiles and high-definition point clouds, and as a basis for actual geological surveys.
All this can be obtained from one aerial composition obtained during a short, unmanned flight which flies directly to the destination after take-off and returns within one hour, with the field work done, said Jakub Karas, UAS manager at Upvision.Last updated: 27/02/2018