Originally Posted by
crhilton
I bet those GPS distances are based on map info which is far from perfect and 2% is pretty close. I think GPS is only accurate to a few feet so it'd be pretty difficult for it to decipher your exact travel distance without using map information.
It's only accurate to a few feet at any one place, but since it's traveling along a path, the error only matters at the start and stop, so a max of 11 feet at both ends.
What maps? My GPS doesn't use maps, it's a hiking/outdoor GPS. You know, REAL GPS from before those cagers *******ized it. Why someone needs GPS to find their way on a road I'll never know.