Mandatory
Pass either side
You may pass the obstruction on either indicated side.
Common mix-up
↗ RTA handbook · 8th edition, p. 77Continue to obey the lanes and direction of traffic.
SHAPE. COLOUR. MEANING.
Recognise the sign, understand the instruction, catch the common trap.
You may pass the obstruction on either indicated side.
Continue to obey the lanes and direction of traffic.
Schematic learning illustrations are not manufacturing specifications. Supplementary plates, road markings and context can change what applies. The linked handbook is an older edition; check current RTA materials.