Tag:route=detour

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Public-images-osm logo.svg route = detour
Zeichen 463 - Bedarfsumleitung (rechts), StVO 1970.svg
Description
Named, permanent detour in case of emergency or traffic jam Show/edit corresponding data item.
Group: routes
Used on these elements
should not be used on nodesshould not be used on waysshould not be used on areasmay be used on relations
Useful combination
Status: in use

A detour is a named and permanent route you can take if there is a traffic jam on the main route.

How to map

required: Relation
ref=name
type=route
route=detour

optional:

destination=city
detour=ref - ref of the way this is a detour to
operator=country/...

If there are alternative routes, set a node at the fork, add it to the relation and assign the role fork.

National pages

Germany

See WikiProject_Germany/Bedarfsumleitung

Netherlands

See WikiProject_Netherlands/Uitwijkroute

An emergency detour route (EDR) sign on Ontario Highway 401.

United States

New York

Lettered detour routes are used along the Thruway.

Resources

Emergency detour routes along the Thruway: https://www.thruway.ny.gov/travelers/detours/index.html

Pennsylvania

Pennsylvania uses colored detour routes to denote detours from freeways for use in inclement weather, traffic accident, or other road closure. D14-101 signs are used at exit gores on freeways, while D14-102 trailblazers are used on the detour route[1]. Colors commonly used are black, blue, green, orange, and red. Purple has been used as a temporary detour route color when the main detour is closed due to road construction.

Colors repeat, so it is important to tag which freeway and which segments of the freeway it is bypassing between exits. Example tagging for the orange detour on I-79 between Exits 121 and 130[2]:

ref=Orange

A rectangular sign with arrow and text that reads Red Detour in red. The background is white.
An emergency detour trailblazer sign used in Pennsylvania. MUTCD D14-102

type=route

route=detour

detour=I 79 (use the ref tag of the freeway the detour is for)

colour=orange

name=Orange Detour (I 79 Exits 121-130) (Include the colored detour. Within the parenthesis, use the ref tag of the freeway that the detour is for. Also include the section of the freeway that the detour is bypassing.)

Resources

Emergency detour routes in PennDOT District 11: https://www.dot.state.pa.us/public/Districts/District11/internet/EMERGENCYDETOURROUTE.pdf

See also

  1. Handbook of Approved Signs (13 June 2023) p 733 Pennsylvania Department of Transportation
  2. OpenStreetMap relation #14997597