Tag:highway=construction

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Public-images-osm logo.svg highway = construction
12Jan05 04.jpg
Description
A highway (road, track or path) currently under construction. Edit or translate this description.
Rendering in OSM Carto
Rendering-highway construction tertiary carto.png
Group: Highways
Used on these elements
may be used on nodesmay be used on waysmay be used on areasshould not be used on relations
Useful combination
See also
Status: de facto

This tag is used together with construction=* for any type of highway, including roads, tracks and paths, currently under construction and impassable by the traffic it is intended for.

Major construction projects typically several years to complete. Use this key to denote active construction roadworks. For projects being planned, where there is little or no evidence for them on the ground, avoid tagging them or use proposed=* instead.

Already existing features may be closed for a short time for a temporary construction (e.g. old, damaged roads getting rebuilt). Don't use construction=* to tag such short-term closures (e.g. a road closed over a weekend to replace a sewer pipe); consider using conditional restrictions instead. As OSM data is often used offline (and therefore may be several months old), only tag construction sites if they are planned to be closed for at least six to nine months.

For minor road-works (where the road in question remains open), see construction=minor

How to map

To map a highway under construction you can just draw a line (way) and tag with highway=construction and construction=*

The value of the construction=* key should be one of those defined below and indicates the type of road, track or path being built .

For example: highway=construction+construction=primary describes a highway which is under construction and its type after the construction has finished will be a highway=primary.

If you know the date at which a construction site is expected to be completed, you can tag it with opening_date=*. Additionally, you can use check_date=* to denote when you last checked/updated the values. This can be useful as large construction projects are often delayed and for some construction projects planned opening date may be unknown or complicated to obtain.

Also add:

  • bridge=yes - If the highway goes over a street or waterway.
  • tunnel=yes - If the highway goes below a street or waterway.

How to map the start of a road repair or reconstruction

Suppose there is a road highway=tertiary that has been closed for a longer period of time due to repair or reconstruction. It is then necessary to:

How to map the completion of road construction

If a road tagged highway=construction has already opened and is passable, don't forget:

  • to replace highway=construction with highway=tertiary or similar depending on the road category
  • remove tags construction=*, or possibly note=* and update access tags (some add access=no to highway=construction, sometimes roads allow bicycles/pedestrians during construction but not once road is completed)
  • add surface=* tag with the road surface and optionally other road parameters
    • In some cases removing outdated detail without adding it would be beneficial

Values

highway=construction with any of the following values for construction=* will render on the Standard layer at zoom level 12 and above:

Value Element Comment Rendering carto
motorway way Motorway under construction Rendering-highway construction motorway carto.png
motorway_link way Motorway sliproad under construction Rendering-highway construction motorway carto.png
trunk way Important non-motorway road under construction Rendering-highway construction trunk carto.png
trunk_link way Sliproad to an important non-motorway road under construction Rendering-highway construction trunk carto.png
primary way Primary road under construction Rendering-highway construction primary carto.png
primary_link way Sliproad to a primary road under construction Rendering-highway construction primary carto.png
secondary way Secondary road under construction Rendering-highway construction secondary carto.png
secondary_link way Secondary road link under construction Rendering-highway construction secondary carto.png
tertiary way Tertiary road under construction Rendering-highway construction tertiary carto.png
tertiary_link way Tertiary road link under construction Rendering-highway construction tertiary carto.png
unclassified way Unclassified road under construction (alternatively tag construction=minor) Rendering-highway construction tertiary carto.png
road way Road with unknown classification under construction Rendering-highway construction road raceway carto.png
raceway way Raceway road under construction Rendering-highway construction road raceway carto.png
residential way Residential road under construction Rendering-highway construction tertiary carto.png
living_street way Living street under construction Rendering-highway construction living street carto.png
pedestrian way Pedestrianised road under construction Rendering-highway construction pedestrian carto.png
service way Service road under construction Rendering-highway construction service carto.png
track way Track under construction Rendering-highway construction misc ways carto.png
bridleway way Bridleway under construction Rendering-highway construction misc ways carto.png
cycleway way Cycleway under construction Rendering-highway construction misc ways carto.png
footway way Foot path under construction (alternative tag <construction=footpath>) Rendering-highway construction misc ways carto.png
path way Path under construction Rendering-highway construction misc ways carto.png
steps way Steps under construction Rendering-highway construction misc ways carto.png

Possible tagging mistakes

If you know places with this tag, verify if it could be tagged with another tag.
Automated edits are strongly discouraged unless you really know what you are doing!
If you know places with this tag, verify if it could be tagged with another tag.
Automated edits are strongly discouraged unless you really know what you are doing!