Dual carriageway
DYOO-ul KA-rij-way /ˈdjuːəl ˈkærɪdʒweɪ/
Neutral Neutral
What it really means
A road where the two directions of traffic are separated by a central barrier or strip of grass, usually with two lanes each way. The national speed limit on one is 70 mph, like a motorway.
Chinese explanation
双向分隔车道公路，两个方向的车流由中央隔离带或绿化带分开，通常每向两条车道。国家限速70英里/小时，和高速公路一样。
Example conversation
A: Is this a motorway? It looks like one.
B: No, it is a dual carriageway. Similar, but bikes and tractors are allowed on it.
A：这是高速公路吗？看着很像。
B：不是，这是双向分隔公路。差不多，但自行车和拖拉机可以上。
What you could say back
No spoken reply needed for this one.
Related phrases
Official sources
Rules and amounts change — confirm important details with the official source.
All Transport
Reviewed by the UK Decoded editorial team
· Last checked 24 July 2026 · Report a mistake