This feature has been labeled as deprecated
. The recommended replacement is: lanes:both_ways=*
The reason is documented in Deprecated features
. You are still free to continue to use or interpret this tag as you see fit since OpenStreetMap does not have “banned features”.
Under no circumstances should you (semi-)automatically change “deprecated” tags to something else in the database on a large scale without conforming to the automated edits code of conduct
. Any such change will be reverted.
A two-way center turn lane is a normal-width lane in the middle of a road that handles traffic from either direction turning across the other side (turning left in right-hand-drive countries). If there is a two-way center turn lane, use centre_turn_lane=yes.
An example of a center left turn lane in the U.S.
This tag has been deprecated in favor of the schema described in Lanes and Proposed features/Suffix both ways as in User:Mvexel's diary entry and discussion on talk-us.