Test this region in West Germany: http://www.openstreetmap.org/#map=16/51.9968/8.6172
Coming from east, before the first slip road to A2, drive the B 66 west, then right (north) to L787 Nordring. You will get twice "turn left", and shortly before Ostring "keep straight". I could not find any reason in the OSM data. Do you?
Additionally, I cannot remember having seen the lane assistant, although lane data are given. What is the reason for this?
Coming from east, before the first slip road to A2, drive the B 66 west, then right (north) to L787 Nordring. You will get twice "turn left", and shortly before Ostring "keep straight". I could not find any reason in the OSM data. Do you?
Additionally, I cannot remember having seen the lane assistant, although lane data are given. What is the reason for this?