Where:
On any public road approaching a junction or intersection.

Purpose:
To inform drivers that turning in the direction indicated by the sign (left or right) is not allowed at the upcoming intersection.
This restriction is usually put in place to improve traffic flow, reduce congestion, or enhance safety where turning movements may be hazardous.

Action:
Do not make a left or right turn at the intersection if the sign is displayed.
Continue straight or follow alternative permitted routes.
Be alert for other signs or road markings that may indicate detours or directions for safe turning.
Ensure you signal early if you plan to follow the permitted route to inform other road users.
Non-compliance may result in traffic fines or penalties, as it is a legal requirement to obey these signs.