Road Narrows on Right

Road Narrows on Right signs appear where the right edge of the carriageway constricts asymmetrically.

Common at bridges with reduced right-side width, coastal roads where the right shoulder disappears near cliff edges or sea walls, construction zones encroaching from the right, sections where hedgerows or stone walls reduce right clearance, and areas where the right side has collapsed or eroded.

Frequent on scenic coastal routes in Kerry, Cork, and Donegal.

The right side of the road is narrowing while the left side remains normal width.

If you are positioned toward the right of your lane, adjust slightly left to maintain clearance from the right edge.

This is particularly critical where the right edge may drop away, have barriers, or drainage channels.

Be aware of oncoming traffic which may also move toward their right (your left) to avoid their narrowed left side.

Increased attention to lane discipline is essential.

Poor positioning at right-side narrowing can cause collisions with roadside obstacles or departure from the carriageway.

Such incidents constitute careless driving: 2 penalty points and fines to €2,000.

If incorrect positioning causes head-on collision with oncoming traffic also adjusting for narrowing, liability is shared but penalties are severe: dangerous driving charges carrying 5 penalty points, fines to €5,000, imprisonment, and disqualification.

Striking barriers or walls due to inadequate clearance results in full driver liability for damages.

Recognizing and responding to asymmetrical road narrowing demonstrates advanced observation skills.

Theory questions test understanding of how single-sided narrowing affects positioning and interaction with other traffic.

Practical tests assess whether you identify the warning early, adjust position smoothly to the left while maintaining safe clearance from oncoming vehicles, and demonstrate awareness that oncoming traffic may also adjust position.

Overcompensating left into the path of oncoming traffic results in Grade 3 failure.

Insufficient adjustment allowing right wheels to leave the carriageway results in Grade 2 faults minimum.