Does anyone have any suggestions how to map a long tunnel? I know how to tag the ways, the issue is where does the tunnel go. You can't exactly get a GPS trace! I want to map the tunnels under the Mersey. The queensway tunnel has 3 exits, all at slightly odd angles and there is a junction in the middle of the tunnel.
Do you think I could figure out some reasonable positions using a cars odometer and a compass? Or does it not really matter that much? Another option just occurred, the tunnel was started in 1925, so any maps from that era would be out of copyright. Perhaps a trip to the library? _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk-gb
