Look at the Map. IMG SRC="oslo.png" ALT="[Map of Sagene,Oslo]" Take your dog, girl/boyfriend with you and walk where there is no green lines. Green lines is where someone other has been. There is ofcourse no problem to walk the same route, we will only get more accurate positions.
Please change your GPS to put a track-log mark every 5-10 seconds when you walk and mabye every 1 seconds when you are using bicycle or car. The postitionformat should be UTM/UPS and Map-datum is WGS84, so we dont need to do a lot of converting afterwards.
When your GPS-memory is full, (around 1800 positions on my Garmin GPS III) you should upload you logfile to us at FREEMAP. and we will put this into our database and update our map on the web.
If you dont have any program for downloading the track-log from you GPS. Please send and email. We have a few homebuild programs for this.
If you hate bicycling and walking around, (a real hacker?) but have experience with GIS tools, please contact us. We need people who could verify data and coordinate map-informations.