Freshmeat page: http://freshmeat.net/projects/routeplanner/
A highway trip planning program that can use interchangable databases (map files). RoutePlanner has two main components: the planning program itself, and the map editor. Eventually, I'll probably add a sanity checking program (to verify that direct routings are, in fact, more direct, etc.). The current releases include two databases of North American highways, one of which is small and woefully out-of-date, the other of which is detailed and not-so-out-of-date.
This project has the following developers:
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