Tag:highway=motorway_junction

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Public-images-osm logo.svg highway = motorway_junction
High Five.jpg
Description
An exit from a motorway or other major road.
Used on these elements
may be used on nodes
should not be used on ways
should not be used on areas
use on relations unspecified
Useful combination
Status: Unspecified

Use the highway=motorway_junction tag to identify a point along a highway=* with junction refs or names where it is possible to exit the highway onto another road. This is usually found along a highway=motorway, but is also applicable to other roads with numbered or named junctions including some highway=trunk and highway=primary roads. Some countries name their motorway junctions (e.g., Germany, France, Italy), while others number them (e.g., UK, US, Spain).

How to use

Add a highway=motorway_junction tag at each node along a highway with named or numbered junctions where a driver can legally exit, onto a highway=motorway_link, highway=trunk_link or other road class. This node should be positioned as the last point before the splay at which it is still possible to make a smooth turn. The following tags may also be used at the same point:

highway=motorway_junction
ref=14
exit_to=Buniel (N 602a);Burgos (Oest) (N 120)

Note for Germany: Links highway=motorway_link between two motorways (i.e., Autobahnkreuz or Autobahndreieck) should be tagged with destination:ref=* according to the ref=* of the motorway the exit leads to if there are signs that state this ref, such as A6.

Relation:destination_sign can be used in non-interchange situations.

Destination of the exit

Main article: Key:destination

The destination of an exit can be indicated either on the motorway_junction note with exit_to=* or on the way that branches off from the node by destination=* and destination:ref=*, together with its further subkeys. The key exit_to=* has the disadvantage that it might be ambiguous in some cases, e.g. on parallel motorways (though using exit_to:right and exit_to:left solves this, which is also a problem for ref=* on the node), that it doesn't work for non-motorway junctions with more than two destinations, and that it does not allow to break down destinations per lane.

The key destination=* is used on the way directly after the junction, not the junction itself. The key destination:lanes=* can provide further details like the exact position of the signpost and the destination of each lane. See the article about the key destination=* and its subkeys for further details and examples.

Related keys

  • name=* for the name of the junction
  • ref=* for the signposted reference of the junction
  • destination=* to provide information about the destination of an exit

See Also