I wouldn't assume a highway should be classified as different road types just because of different states of maintenance or surface quality. Have a look into the OSM wiki at [how highways are classified in OSM][1]. Furthermore have a look at [surface][2], [smoothness][3] and [tracktype][4]. Tracktype is used not only in combination with highway=track. highway=track. 4wd_only=yes exists, too. Own experience: Two years ago I travelled a highway whose surface was partly new asphalt, partly crumbled asphalt, partly fine gravel, partly pebblestone. All the way I tagged it highway=primary - since it was/is one. :) Pictures: [](http://malenki.ch/Touren/11/Galerie/Tag_21/slide_28.html) [](http://malenki.ch/Touren/11/Galerie/Tag_21/slide_31.html) [](http://malenki.ch/Touren/11/Galerie/Tag_22/slide_05.html) [](http://malenki.ch/Touren/11/Galerie/Tag_22/slide_34.html) [1]: http://wiki.openstreetmap.org/wiki/Highways#Classification [2]: http://wiki.openstreetmap.org/wiki/Surface [3]: http://wiki.openstreetmap.org/wiki/Proposed_features/smoothness [4]: http://wiki.openstreetmap.org/wiki/Tracktype

I wouldn't assume a highway should be classified as different road types just because of different states of maintenance or surface quality. Have a look into the OSM wiki at [how highways are classified in OSM][1]. Furthermore have a look at [surface][2], [smoothness][3] and [tracktype][4]. Tracktype is used not only in combination with highway=track. Own experience: Two years ago I travelled a highway whose surface was partly new asphalt, partly crumbled asphalt, partly fine gravel, partly pebblestone. All the way I tagged it highway=primary - since it was/is one. :) :) Pictures: [](http://malenki.ch/Touren/11/Galerie/Tag_21/slide_28.html) [](http://malenki.ch/Touren/11/Galerie/Tag_21/slide_31.html) [](http://malenki.ch/Touren/11/Galerie/Tag_22/slide_05.html) [](http://malenki.ch/Touren/11/Galerie/Tag_22/slide_34.html) [1]: http://wiki.openstreetmap.org/wiki/Highways#Classification [2]: http://wiki.openstreetmap.org/wiki/Surface [3]: http://wiki.openstreetmap.org/wiki/Proposed_features/smoothness [4]: http://wiki.openstreetmap.org/wiki/Tracktype

I wouldn't assume that a highway should be classified as different road types just because of different states of maintenance or surface quality should be classified as different road types. quality. Have a look into the OSM wiki at [how highways are classified in OSM][1]. Furthermore have a look at [surface][2], [smoothness][3] and [tracktype][4]. Tracktype is used not only in combination with highway=track. Own experience: Two years ago I travelled a highway whose surface was partly new asphalt, partly crumbled asphalt, partly fine gravel, partly pebblestone. All the way I tagged it highway=primary - since it was/is one. :) Pictures: [](http://malenki.ch/Touren/11/Galerie/Tag_21/slide_28.html) [](http://malenki.ch/Touren/11/Galerie/Tag_21/slide_31.html) [](http://malenki.ch/Touren/11/Galerie/Tag_22/slide_05.html) [](http://malenki.ch/Touren/11/Galerie/Tag_22/slide_34.html) [1]: http://wiki.openstreetmap.org/wiki/Highways#Classification [2]: http://wiki.openstreetmap.org/wiki/Surface [3]: http://wiki.openstreetmap.org/wiki/Proposed_features/smoothness [4]: http://wiki.openstreetmap.org/wiki/Tracktype

I wouldn't assume that a highway just because of different states of maintenance or surface quality should be classified as different road types. Have a look into the OSM wiki at [how highways are classified in OSM][1]. Furthermore have a look at [surface][2], [smoothness][3] and [tracktype][4]. Tracktype is used not only in combination with highway=track. Own experience: Two years ago I travelled a highway whose surface was partly new asphalt, partly crumbled asphalt, partly fine gravel, partly pebblestone. All the way I tagged it highway=primary - since it was/is one. :) Pictures: [](http://malenki.ch/Touren/11/Galerie/Tag_21/slide_28.html) [](http://malenki.ch/Touren/11/Galerie/Tag_21/slide_31.html) [](http://malenki.ch/Touren/11/Galerie/Tag_22/slide_05.html) [](http://malenki.ch/Touren/11/Galerie/Tag_22/slide_34.html) [1]: http://wiki.openstreetmap.org/wiki/Highways#Classification [2]: http://wiki.openstreetmap.org/wiki/Surface [3]: http://wiki.openstreetmap.org/wiki/Proposed_features/smoothness [4]: http://wiki.openstreetmap.org/wiki/Tracktype