Lane 2 of 2 Narrow (advance)

Lane 2 of 2 Narrow (Advance) signs appear on Irish dual carriageways ahead of construction zones where both lanes continue but at reduced widths.

Common approaching temporary barrier installations on the M50 and N7, bridge construction zones where lane widths reduce through work areas, and utility project sites where barriers or equipment encroach from both sides reducing effective road width.

The 'advance' designation indicates this is an early warning positioned 200-400 meters before the actual narrowing begins.

These signs appear before major resurfacing operations where edge work reduces usable width, temporary traffic management setups, and construction zones where maintaining two-lane flow requires accepting narrower lane widths throughout the work area.

Both lanes of the dual carriageway will narrow ahead within the next 200-400 meters, with actual narrowing indicated by subsequent non-advance signs.

This advance warning allows you to prepare for reduced lane widths while still operating in full-width lanes.

Reduce speed to 60-80 km/h and increase attention to lane positioning.

Begin moving toward lane center and reduce following distances in preparation for tighter clearances ahead.

The advance warning indicates sufficient distance remains to adjust your driving style before entering the narrow section.

Check mirrors and adjust position within your lane to ensure centered placement for upcoming restricted width section.

Ignoring advance narrow lane warnings and entering restricted sections at excessive speed constitutes careless driving with 2 penalty points and fines up to €2,000.

Maintaining inappropriate speed through subsequently narrowed sections can result in dangerous driving charges: 5 penalty points, €5,000 fines, and disqualification.

Construction zone speed violations carry doubled penalties.

Advance warning violations are prosecuted as they demonstrate deliberate disregard for progressive safety information.

Collisions in narrow lane sections after ignoring advance warnings result in increased liability determinations recognizing the clear warning provided.

Advance warning signs are covered in Irish theory tests as part of progressive hazard information systems.

You must understand that 'advance' warnings require immediate preparatory actions even though the hazard isn't yet present.

Theory questions test recognition that advance narrow lane warnings demand speed reduction and lane positioning adjustments before entering restricted sections.

Practical assessments evaluate whether you respond to advance warnings with appropriate preparation rather than waiting for actual hazards.

Proper response to advance signs demonstrates anticipatory driving skills essential for safe construction zone navigation.