Roadnav description
Roadnav is an in-car navigation system

Roadnav is an in-car navigation system capable of running on a variety of operating systems, including Linux, Windows, and Mac OS X. Roadnav will obtain a car's present location from a GPS unit, plot street maps of the area and also provide verbal turn by turn directions to any location in the US.

Roadnav uses the free TIGER/Line files from the US Census Bureau to build the maps, along with the GNIS state and topical gazetteer data from the USGS to identify locations.

Here are some key features of "Roadnav":

· Generates street level maps for the US
· Interfaces with GPS units to display your position in real time
· Verbal turn by turn directions to any place in the US. Automatically recomputes directions if you miss a turn.
· On screen keyboard
· 3D (driver's perspective) view mode
· Daytime and nighttime color schemes
· Automatic day/night mode switching
· Plots nearby landmarks and points of interest
· Can operate offline (without an Internet connection)
· Antialiased output
· Uses freely available data from the US Census Bureau and the USGS
· Appearance can be customized with skins
· Can output status information to LCD devices through LCDproc