[OSM-talk] Mapping and surveying long road tunnels
richard at systemeD.net
Thu Mar 22 14:11:13 GMT 2007
Steve Chilton wrote:
> How would you survey the curving underground
> alignment of the Limehouse Link? I suspect even the best GPS handheld
> devices won't get a signal. You can't get any useful data from the Yahoo
> satelite imagery. You can't use any published map sources that you
> consider reliable as it is too new for o-o-cop maps.
> Any thoughts?
Half in jest, Nick Gagravarr and I were talking a while back about
using a motion sensor for underground surveying... such as the one on
the Nintendo Wii.
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