This is a highway trip planning program, similar to programs like Rand McNally's "TripMaker." It allows you to plan road trips between two or more locations, using various interchangeable map files (or databases).
Currently, the program includes two databases covering North America; one is fairly simplistic, and one is quite detailed. You can also create new databases with the editor in the routeplanner-gnome package.
For retrocomputing nuts, this program traces its lineage back to a 1980s program called "RoadRoute" written by Jim Butterfield for the Amiga. AFAIK all of the code has been rewritten, but the Basic-USA database included here is Jim's original dataset.
The package includes two console-based interfaces; for the GNOME interface and the editor, you should install routeplanner-gnome as well.
Home Page: http://sourceforge.net/projects/routeplanner/