Haven’t had a chance to try it yet, but RoadNav is an open source GPS Road Navigation program that uses TIGER data to generate street maps and turn-by-turn directions, gives verbal commands, and doesn’t require an Internet connection. Also runs on Linux and Mac OS X, in addition to Windows. I usually drive alone, and it’s a *really* bad idea to use a PC-based road navigation program as the driver, so I don’t know when I’ll get around to it. If anyone tries it out, please let me know how it works for you.
Addendum from the comments: Check out this SlashGEO posting for links to other freeware road navigation solutions.
Other posts in the GPS Tools series
- Simplifying GPS Tracks
- Recap Of Exporting/Importing GIS Data To/From A GPS Unit Series
- Freeware GPS Road Navigation Software
- GPS Satellite Display In Google Earth
- Solar GPS DataLogger
- Loading An AutoCAD DXF File Into A GPS Or Google Earth
- Open Source Web-Based GPS Fleet Tracking Software
- Determining Local GPS Satellite Geometry Effects On Position Accuracy
- Determining Terrain Effects On GPS Accuracy
- GPS File Format Converter
- “Turn Your Cellphone Into A GPS!”? Not Exactly, But Still Kinda Cool
- USAPhotoMaps: GPS Functions
- Java-Based GPS Route Format Converter
- RouteConverter Updated
- Create Location-Based Media (Games, Hikes, Tours, Etc.) With Mscape
- Protecting Your GPS Unit’s Screen
- Upload Google Maps Directions As A Route To A GPS
- Get-A-Route Upgraded Already
- Two Free Applications For Marine Navigation
- KML To GPX Converter For PC And Mac
- Creating GPS Routes And Tracks In Google Earth
- GPS “Dilution Of Precision” (DOP) Maps
- Real-Time GPS/WAAS Status Reports
- Cheap Bluetooth GPS Antenna And Data Logger
- Improving Position Measurement Accuracy In Consumer-Grade GPS Receivers - Part I
- Cheap Digital Camera With Built-In GPS
- Cheap GPS Antennas, Compasses, Oddball Gadgets And Junk
- Improving Position Measurement Accuracy In Consumer-Grade GPS Receivers - Part II
- RouteConverter Updated - Java GPS Route Editing And Conversion For Windows (Mac And Linux Too?)
- Sports Route Planning Software For The Macintosh
- OKMap - GPS Mapping Software For The Beta-Adventurous
- Create Bicycle/Travel Courses For Your Garmin Edge/Forerunner GPS With Bike Route Toaster
- Web App For Analyzing GPS Tracks
I got this running a few years ago on my SHARP Zaurus PDA (Linux-based). It worked, and the maps were lighter weight than others. There were no voice commands then. If I wanted to use my Zaurus in the car, this is where I would start.
See this post for the other alternatives alongside RoadNav:
http://industry.slashgeo.org/article.pl?sid=06/03/19/215236
A freeware GPS mapping software called OkMap.
If you are interesting to publish my software you can download the pad xml file at http://www.okmap.it/pad.xml that contains all informations.
Thank you
Gian Paolo Saliola