|Traffic priority for narrow parts of roads, e.g. narrow bridges.|
|Used on these elements|
|Tools for this tag|
Single lane traffic direction priority
Where traffic is narrowed to a single lane due to an obstacle such as a narrow bridge or a traffic calming measure there is sometimes a sign either side of the restriction indicating that one direction of traffic has priority over the other. These signs are registered in theas these:
|Priority for oncoming traffic (B5)||Priority over oncoming traffic (B6)|
It is useful to record this information in OpenStreetMap so that routing algorithms could take account of it in determining the delay based on travel direction.
Applies to: Ways (typically highway=*)