T Junction Ahead at Dual C'way (With CR Break)

This sign appears where minor roads terminate at dual carriageways with central reservation breaks allowing both left and right turns, typically at junctions deemed important enough to justify full access.

Common on the N7 near Naas and Kildare, N8 approaching Mitchelstown, N11 south of Dublin in Wicklow, and N18 Limerick-Galway route where regional towns require comprehensive dual carriageway access.

These junctions serve significant traffic generators—regional towns, industrial estates, major tourist attractions—where restricting access to left-turn-only would cause unacceptable diversions.

Sign placement occurs 200-300 metres before the junction, often supplemented by directional advance signs indicating which destinations are accessible via left or right turns.

Unlike left-turn-only configurations, these junctions feature dedicated right-turn lanes protected by central reservation islands, though crossing high-speed opposing traffic remains the primary hazard.

This sign warns of approaching T-junction at a dual carriageway where the central reservation has a break (opening), allowing you to turn either left or right.

The critical difference from no-break junctions: right turns are possible but extremely hazardous due to crossing opposing carriageway traffic traveling at 100-120km/h.

Right-turning vehicles must cross the nearside carriageway, enter the central reservation gap, wait for suitable gaps in far carriageway traffic, then complete the turn—requiring judgment of vehicles approaching at motorway speeds from considerable distances.

Most such junctions provide protected right-turn lanes with YIELD or STOP control.

The sign indicates need for early lane selection, significant speed reduction from approach speeds, and extended observation periods.

Left turns are comparatively simpler, requiring only merging with nearside traffic, though speeds remain high.

Poor judgment at dual carriageway T-junctions with central reservation breaks frequently causes severe collisions with serious legal consequences.

Entering dual carriageways without yielding to priority traffic constitutes careless driving at minimum (€80-€120, 2-3 penalty points), escalating rapidly to dangerous driving charges (€5,000, 5 penalty points, disqualification) when collisions occur.

Given opposing traffic speeds of 100km/h+, collisions at such junctions often involve serious injuries or fatalities, triggering vehicular manslaughter investigations under Section 4 of the Road Traffic Act 2010 (prison sentences up to 10 years).

Insurance liability assessments typically assign 80-100% fault to vehicles emerging from minor roads that misjudged gaps.

The advance warning establishes that drivers had notice to prepare for complex high-speed junction maneuvers, making 'didn't see' defenses ineffective.

Theory test questions about dual carriageway junctions emphasize gap judgment at high speeds, understanding of central reservation breaks, and hazard recognition.

Questions assess what this sign means, what specific dangers exist when turning right across dual carriageways, and appropriate preparation procedures.

Scenario questions test understanding that dual carriageway speeds (100-120km/h) require much larger gaps than single carriageway junctions.

Practical driving tests rarely include dual carriageway T-junctions due to test route safety constraints avoiding high-speed roads, but in areas where unavoidable, examiners assess: early recognition of warning signs, appropriate speed reduction, correct lane selection well in advance, extended observation assessing traffic speeds and gaps accurately, and if turning right, proper use of central reservation waiting area and final gap assessment before completing the turn.