Requirements for positioning and navigation in underground constructions

Currently positioning is still a big challenge in an underground project. Amberg Technologies offers a surveying solution that sets new benchmarks in measurement and automation for conventional tunnelling. The actual surveying solution uses total station and laser scanning technologies. Underground projects have some special characteristics compared to civil engineering construction sites. Especially the environment with darkness, dust, humidity and the lack of space requires special work flows to optimise the construction process. In this paper the requirements for a positioning and navigation system for underground construction are explained. The requirements are the results of a practical field test with an innovative indoor positioning system.