Due to the altitude and remoteness there was a weak GNSS signal over almost the entire distance, especially in the five tunnels included in the survey area. It’s particularly difficult to access both sides of the retaining walls, as they are built on steep, heavily overgrown terrain. With a 23% slope in some places and huge drops into the valley below, the roads in Berchtesgadener Land are not easy to survey. The project was the first time that mobile mapping had been applied to this type of challenge.Ĭhallenging physical constraints for data capture After exploring options, Ing Geovision used a Leica Geosystems mobile mapping solution to digitally capture the road and its retaining walls.

The Authority asked Ing Geovision, surveying and geospatial data management experts, to survey a 3.2 km stretch. A pioneer in using digital methods, TSBA wanted to create a digital record of the area as a basis for planned construction work. TSBA manages the alpine roads in addition to a network that includes hundreds of kilometres of federal and state roads, walking and cycling paths, bridges, support structures and tunnels.

The responsibility for that falls to The Traunstein State Building Authority (TSBA). As the gateway to tourist areas in the southeastern tip of Bavaria, it’s vital to the local economy that the roads are kept in a good condition. The alpine roads in Berchtesgadener Land, Germany, offer some of the most breathtaking views in the world. Raphael Goudard, Business Manager for Mobile Mapping solutions

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