Thread: iGO Primo: Route calculation algorithms/formulas

Originally Posted by GPSveteran

They must have changed the limits of national roads way up, so the route calculation is way of balance.

The issue is not about speed limit, it's about the driving speed of a road based on the time of day. That is what stored in the .fsp (and .hsp) file. The road speed limits are store in .fbl (the map file)