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    • Paolo Kerguel

      Comment on "The PPS mobile traverse system"

      Very interesting. I did not think navigation in tunneling would be a complex matter. But then, I never worked in any tunnel with such tight curves. Very creative solution to say the least,

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      • Quirin Poltinger

        The PPS mobile traverse system

        From time to time we get some very interesting and challenging customer requests. This is the story of one of them:   http://tunnelsurveyor.com/the-pps-mobile-traverse-system/

        Tags: surveying, guidance, weknowexactlywheretogo, TBM, navigation