(1) As used in this section, “center left-turn lane” means a center lane on any road or highway that is for the purpose of executing two-way left turns in either direction and that is so marked by signage or striping.
(2) A center left-turn lane shall be for the exclusive use of a left-turning vehicle in either direction.
(3) A center left-turn lane shall not be used for through travel, nor shall a center left-turn lane be used for passing or overtaking, except as a part of the left-turn maneuver.
(4) It is permissible for a vehicle making a left-hand turn from an intersecting street or driveway to utilize a center left-turn lane as part of the maneuver to gain access to or to merge into the traffic lanes, except that it is not permissible to use the center left-turn lane as an acceleration lane.