Turn Left

Turn Left signs appear at junctions where continuing straight or turning right is prohibited due to one-way systems, physical barriers, or traffic management requirements.

Common in Dublin city center at junctions entering one-way streets, at shopping center exits where right turns onto busy roads are prohibited, approaching construction zones where traffic is diverted left, and at T-junctions where the main road prohibits right turns.

Found at locations where road geometry, safety considerations, or traffic flow management makes left turn the only permitted movement.

Drivers must turn left at this junction as straight-ahead and right-turn movements are prohibited.

This is a mandatory instruction, not a recommendation: physical barriers, one-way restrictions, or traffic control measures prevent other movements.

The requirement applies to all vehicles unless specific exemptions apply (emergency vehicles responding to calls).

Drivers should position in the left lane if multiple lanes exist and execute the turn safely while observing for pedestrians and cyclists who may also be turning left or crossing.

Mandatory left turn violations result in €80 fixed charge penalties and 2 penalty points for failing to comply with regulatory signs.

Attempting prohibited straight or right movements can result in additional penalties for wrong-way driving, entering prohibited areas, or dangerous driving.

Violations in busy urban areas often create collision risks with properly turning traffic.

Commercial vehicle violations may result in operator license consequences.

Repeat mandatory sign violations indicate poor observation skills and may result in license review requirements.

Turn Left mandatory signs test immediate compliance and understanding that certain movements may be prohibited for safety or traffic management reasons.

Theory questions emphasize that mandatory turn signs must be obeyed regardless of driver preferences and that violations can create dangerous situations.

Practical tests assess immediate recognition and compliance: examiners expect appropriate lane positioning, safe turn execution with proper observations for pedestrians and cyclists, and understanding that mandatory signs override normal junction rules.

Proper compliance demonstrates awareness of regulatory authority and traffic safety principles.