Prohibitory
No left turn
Do not turn left at the restricted location.
Common mix-up
↗ RTA handbook · 8th edition, p. 77Choose a permitted route rather than improvising a turn.
SHAPE. COLOUR. MEANING.
Read the road.
Recognise the sign, understand the instruction, catch the common trap.
1 signs in this view · Original schematic illustrations
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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.