Known Issues & Bugs
Know issuesUnfold this section to read more
Automobile routing is not supported
Routing with vehicle=car is meant for racing bikes
Postal code search is not supported
Housenumbers are searchable if mapped on OSM; housenumbers in the Netherlands are extracted from the Dutch BAG dataset and almost complete.
Long distance routing is not possible
Use via points for shorter distances (sometimes even less than 20 km).
Bicycle routing is weird?
Don't select interstate / major highways avoidance
See also below
Maps are not visible on the device?
See the Installation an other topics in this tips & tricks section to read more about how to use the maps.
Route not aligned with the road network?
Align the compass (North Up) in View menu (Ctrl-N)
Route not aligned with the map?
Press Ctrl-N (or View->North Up)
Routing errors or unexpected long detours?Unfold this section to read more
Once in a while you will see that the GPS refuses to calculate a route, make long detours or just draw a straight line between the start and destination of a route. There can be several causes for this behaviour:
Settings in the GPS unit or Basecamp/Mapsource are not correct / optimal
Read the other Tips & Tricks sections to setup your GPS
Don't avoid highways/motorways
Don't activate multiple routable maps
Broken road network on Openstreetmap
The OSM database is changing a lot, the road network is improved but also editing errors are made
Report those errors in the "note" menu on openstreetmap.org or become a mapper and repair it by joining the osm community
Because of the many updates on osm, there can be differences between the OFM updates. So therefore it is important to use the same map version (=date) on the GPS as on the pc and recalculate old routes that were made with a previous version.
Routes are too long to calculate
Basecamp and Mapsource can calculate longer routes than the GPS. Dont make the route sections too large, 20 km between viapoints should be ok, >100km often not.
Car routing is not supported
The Openfietsmaps are not suitable for car navigation. Motorways and other roads that are blocked for cyclists are non routable.
Limited use for Walking/Hiking navigation
The maps are not optimal for walking/hiking. Some roads that are accesible for pedestrians but not for cyclists can be non routable (e.g. a motorway with a sidewalk). Some paths are not routable (bridleways).
Device transfer options (Basecamp 4.3.3. and later)
Dont select any option! Especially "Always match route to the map" can cause broken routing (straight lines) when selected.
Different OFM version on GPS and Basecamp
This will cause errors when making a route in Basecamp and transfer it to the GPS. After route calculation this can result in straight lines.