Key:stop:direction

stop:direction=* is used with highway=stop to indicate the direction of travel affected by the stop sign/signal.

This tag only applies for nodes that are part of a way. For stop nodes placed at their real position next to the road, use direction=* with cardinal directions or angles as the value.

Description

Complex junctions where multiple crossing nodes are tagged with highway=stop can cause routing algorithms to interpret two or more individual stops where in reality stop signs/signals only apply once to crossing traffic. This can be overcome by tagging the direction of travel affected by the stop.

Using this information routing algorithms can better determine how stops at a junction affect journey time and provide better weighted route choices.

Tagging

Key	Value	Element	Comment
stop:direction	forward		Only traffic which passes in the same direction as the way is affected.
stop:direction	backward		Only traffic which passes in the opposite direction as the way is affected.

Note that this tagging is ambiguous in case the node belongs to more than one highway=*! For this reason, use the stop:direction=* tag only on nodes which are part of exactly one highway. Avoid junction nodes and nodes between two ways as well (where they have been split, but are connected by a node). If in doubt, better simply insert a new node into the way which can be freshly tagged.

See also

• traffic_signals:direction=*
• Forward & backward, left & right