Prague tests new system to prevent loss of satellite (GPS etc) signal in tunnels
The system, which should make life easier for drivers who rely on car-navigation technology, is currently being tested in Prague’s Blanka tunnel. If successfull, it will be rolled...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
cover tunnel photo by: Matt Brown from London, England / CC BY
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