|highway = motorway|
|High capacity highways designed to safely carry fast motor traffic.|
|Used on these elements|
|Tools for this tag|
The tag highway=motorway is used only on ways to identify the highest-performance roads within a territory.
Generally roads with control of access are proclaimed in government documents, and have an official status as a controlled access road, sometimes this can include the term motorway, freeway or expressway among others in the road name. These kinds of roads usually have a special designation by the law, with a set of laws specifically applied on them. Generally some restrictions are placed on the kind of vehicles or traffic which can be on roads which should be classed as highway=motorway, such as no pedestrians, bicycles, livestock, horses and so on.
Selected limited access roads which can be classed as motorways include those that:
- Generally resemble a controlled access road and must be free from intersection controls;
- Typically have at least two lanes in each traffic direction with some degree of separation;
- Have access roads only for servicing purposes, such as a limited number of driveways serving non-residential property, service roads to infrastructure, or rest-area roads or bays, which may be more typical in regional or rural settings
The tag highway=motorway_link should be used for the link roads, sliproads or ramps which lead to and from a motorway. Where one motorway terminates or begins on another the highway=motorway_link can be used to separate and identify the different motorway roads and the continuing route; that is, generally two divergiving or converging highway=motorway ways should not meet or join in OpenStreetMap, but rather be separated by highway=motorway_link ways.
While the box on the right lists some implied tags, they have been changed several times, they are often country-specific and the community does not agree about the implications. Please tag them anyways to clear out any doubt.
How to map
A motorway is normally represented by a series two parallel ways, one for each carriageway tagged with highway=motorway. These ways should all point direction of travel and be tagged with oneway=yes. In the less usual case of a motorway where traffic travels in both directions along the same carriageway use a single way and tag it with oneway=no. When drawing parallel ways, place the nodes for each direction next to each other, which results in a better representation on most maps. The following tags may be applicable:
|name=*||Name of the motorway.||Autostrada dei Fiori|
|ref=*||Highway code in the national highway network.||A 3|
|oneway=yes||See section #How to map|
|lanes=*||Number of lanes.||3|
|maxspeed=*||The maximum speed which is allowed (in km/h).||130|
|minspeed=*||Minimum speed which a vehicle must be capable of to use the motorway (in km/h).||50|
|destination=*||Name of town for the direction of the motorway. Normally the town written on the sign which belongs to the motorway-link.||Frankfurt|
|carriageway_ref=*||In the UK, the reference number for the carriageway, as displayed on Highway Agency signing||B|
Consider adding the all of these ways to a relation of type (what type of relation? PeterIto 02:47, 20 January 2013 (UTC)).
|Australia|| Motorways, freeways, and freeway-like roads.
Divided roads with 2 or 3 lanes in each direction, limited access via interchanges, no traffic lights. Generally 100 or 110 km/h speed limit. For example: Hume Freeway.
|Australian Roads Tagging|
|Belgium||nl:autosnelweg fr:autoroute de:autobahn maxspeed=120 km/h|
|Brazil||Autoestradas, >80 km/h|
|Czech Republic||Dálnice||WikiProject Czechia/roads tagging|
|Denmark||Motorvej||Danish Map Features|
|France||autoroute (A)||Fr:Map Features|
|Hong Kong||Designated expressways and other public roads with expressway-like rules.||Zh-hant:Hong Kong tagging|
|Hungary||Autópálya||WikiProject Hungary/Gyorsforgalmi út|
|Iran (Islamic Republic of)||The Freeways according to the definition of Iranian National Standardization Organization.|
|Italy||Autostrada, compresi i raccordi autostradali come le tangenziali di Milano e il Grande Raccordo Anulare di Roma.||It:Italian Roads Tagging|
|Japan||Expressways or motor roads. Normally divided with 2 or more lanes in each direction.|
|Korea||Divided, grade-separated highway with 2 or more lanes in each direction designated by a red and blue shield (toll roads). Also, some National Routes (blue oval) which have been upgraded to Motorway status (toll-free).|| Ko:Map Features|
|Norway||Motorvei & Motortrafikkveg|
|Poland||Autostrada||WikiProject Poland/Klasyfikacja dróg|
|Portugal||Auto-estrada – the national road institute changed the reference to IP (Itinerário Principal) or IC (Itinerário Complementar). There are still some "Auto-estradas" not renamed so they keep the name.|
|Russia||автомагистраль (avtomagistral'), которая уже имеет статус trunk.||RU:Map Features:highway|
|Slovak Republic||Diaľnica & Rýchlostná cesta|
|Spain||Autopista/Autovía||WikiProject Spain/Autopista Normalización|
|Switzerland||Autobahn / autoroute|
|US|| A freeway, turnpike, or interstate
Grade-separated highway, normally divided with 2 or more lanes in each direction. Access by ramps only. This includes all Interstate Highways (with a couple of rare exceptions) and some US and state highways (or portions thereof).