I was experimenting with A* pathfinding (and it went very smoothly). Attachted a screenshot of the result (both busses use the same line!
Since there are likely some unknow errors around, use this only for testing. I suggest to make the max_route entry in simuconf.tab much smaller (like 16000) and see, if the vehicles still find a route. (They should do so even on 1024*1024 maps.)
Changlog:
FIX: after reloading, check stations for post offices (was broken before)
FIX: search for next station failed too often
FIX: error message when AI failed building a route does not appear any more
FIX: crossing channels with eltric wires again ok
FIX: going to end of station also on bridges
FIX: avoid deleting parts of a bridge
FIX: default filter state for convoi list is off
CHANGE: A* for faster pathfinding and preference of faster ways for faster vehicles

