I don't know if Kim Salo reads the BBS much now, but it would be interesting to find out what algorithm he uses. His empeg nav software does routing (including one-ways etc) and I seem to recall it already does real time rerouting if you take a wrong turn.

I could be wrong though. I do have a copy of the software but I don't have a UK map for it. If we can find a suitable Netherlands map it would be a cool thing to demo at the next owner meet in Amersfoort.

Rob