From OpenStreetMap Wiki
The route tag is for any kind of non-physical route.
To describe routes. See also relation:route!
See below for common values:
|route||bicycle||Cycle_routes explains how to tag cycle routes|
|route||bus||The route a public bus service takes. See Buses|
|route||detour||Route for fixed detour routes. Examples are Bedarfsumleitung in Germany and uitwijkroute in the Netherlands|
|route||ferry||The route a ferry takes from terminal to terminal Please make sure to add at least one node per tile (zoom level 12), better at least one every few km, so offline editors catch it with bbox requests.|
|route||hiking||hiking explains how to tag hiking routes|
|route||mtb||Mountainbike explains how to tag mtb routes|
|route||pipeline||for pipelines, pipeline markers, and pipeline stations|
|route||piste||Proposed for the routes of pistes (e.g. snowshoe or XC-Ski trails) in winter sport areas.|
|route||power||where power lines use the same towers (the same way)|
|route||railway||A sequence of railway ways, often named (eg Channel Tunnel). See Railways|
|route||road||Can be used to map various road routes/long roads|
|route||ski||For ski tracks (e.g XC-Ski Trails User:Langläufer/Loipemap)|
|route||train||Train services (eg London-Paris Eurostar) See Railways|
|route||tram||See Trams for more information on tagging tram services|
|route||user defined||tag statistic according to Taginfo|
This table is a wiki template with a default description in English. Editable here.