Road marking · Warning Markings
Reversible lane lines
WM4
- Where
- On any road.
- Purpose
- To warn drivers that the lane indicated by this marking can be used for traffic from the opposite direction at various times of day or night.
- Action
- Be on the look out for approaching vehicles. Version 1.00 52 Jun 2012 Copyright © 2012 by SA Department of Transport
Manual on Road Traffic Signs, page 53.