Lanes: Difference between revisions

== Description ==

 

 

Lane-specific information can be expressed on a way by suffixing the key with <code>:lanes</code>. This suffix is applicable to any existing <code><key>=<value></code> tag pair. In such case, the value of that key then contains the values for each lane separated by a | (vertical bar) in left-to-right order as viewed in the respective driving direction of those lanes. If the value of a specific lane is left blank, the (possibly assumed/implicit) value of the main key without <code>:lanes</code>-suffix applies (the so called ''default value'').

 

In the common case of two driving directions either <code>:forward</code> or <code>:backward</code> is added to the end of the key; i.e., <code><key>:lanes:forward</code> describes the properties of the lanes in the same direction as the osm-way, whereas <code><key>:lanes:backward</code> described the properties of the lanes in the opposite direction of the osm-way.

 

== Examples ==

<nowiki>*</nowiki> These tags show how to add more than one value to a single lane, by separating those values with a ; (semi-colon).<br>

<nowiki>**</nowiki> There is ''no'' physical separation between the upper two lanes and the lower ones, just a double solid line. While the [[Editing_Standards_and_Conventions#Divided_highways|editing standards]] recommend to split the ways only when a ''physical'' separation is present, in many regions the ways are already splitted in case of a legal separation like a double solid line. In such a case both resulting ways should be tagged with {{Tag|lanes||2}}.

 

== Editor support ==