Key:dual_carriageway

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Public-images-osm logo.svg dual_carriageway
Dscf0444 600.jpg
Description
Specifies whether a highway is a dual-carriageway (divided) road Edit or translate this description.
Group: Highways
Used on these elements
should not be used on nodesmay be used on waysshould not be used on areasshould not be used on relations
Requires
Useful combination
See also
Status: unspecified

Wikidata

See Tag:dual_carriageway=yes for discussion how this tag is used.

Comparison

(can indicate different values; may be confusing for carriage=* and other *way=*.)

(may imply multiple-carriageway)

There was a less sharp uptick for carriageway=* in 2013, than the rise of dual_carriageway=* in 2014.