Key:oneway
From OpenStreetMap
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 oneway |
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| Description: Oneway streets are streets where you are only allowed to drive in one direction. |
| Group: Restrictions |
| Element: help
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| Implies: |
| Tagwatch: help |
Summary
The oneway tag is used to indicate the access restriction on the way. This means that this tag should be used when this way can only be used in one direction.
Take a look on the access=* page to add more detailed restrictions.
How to Map
In addition to any highway=* tags on the road the tag oneway=yes is added. Make sure the way points in the same direction as the oneway goes. (To show the ways direction in JOSM activate it in the general or layer preferences, Potlatch has an arrow in the bottom left of the screen which shows the direction of the way.)
If the road is only a oneway road in certain parts, you'll have to split up the way in several ways.
You don't need to tag junction=roundabout with a oneway tag, because they are oneway by default.
If for some reason the oneway goes not in the direction of the way, but the other direction and you can't change the direction of the way, you can instead tag it as oneway=-1. But in most cases it makes more sense to turn the way around. JOSM and Potlatch have menu options for this.
Rendering
Osmarender renders little blue and grey arrows at the beginning and end of a oneway street.
Mapnik renders little blue arrows at the beginning and repeats these arrows until the end of a oneway street.
See also
- access=* - General access restriction key.
