Meaning
In British English, a dual carriageway is a road where traffic travelling in opposite directions is separated by a central reservation or strip, broadly corresponding to a divided highway in American English.
How it is used
Cambridge Dictionary labels dual carriageway as UK English and defines it by the physical separation of traffic moving in opposite directions, comparing it with US divided highway. Collins independently labels the term British and likewise centers the definition on separated opposing traffic flows. Lane counts can vary, so separation—not simply having two lanes—is the key idea.
Examples
- “The road becomes a dual carriageway after the junction.”
- “Stay on the dual carriageway for several miles.”
- “Traffic was slow on the northbound side of the dual carriageway.”
Pronunciation
/ˌdjuː.əl ˈkær.ɪdʒ.weɪ/ · DYOO-uhl KARR-ij-way
Tone and register
Neutral and standard British road vocabulary. Dual carriageway is a descriptive road term, not slang.
Visitor guidance
Visitors should not interpret dual carriageway as meaning merely a road with two lanes, nor assume it is automatically a motorway. The phrase describes separated carriageways for opposing traffic. Speed limits, vehicle restrictions, junction design, lane use, central reservations, and other legal or engineering details depend on the particular road and current rules.
Cultural context
Dual carriageway is useful travel vocabulary because it appears in directions, traffic reports, road signs, planning documents, driving discussions, and route descriptions. It is especially helpful for visitors who know divided highway but may misread carriageway as simply a lane or individual strip of road.
Places represented
Open the reviewed place guide for each regional sense carried by this canonical entry.