Meaning of the word "dual carriageway" in English

What does "dual carriageway" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

dual carriageway

US /ˌduː.əl ˈkær.i.dʒ.weɪ/
UK /ˌdʒuː.əl ˈkær.ɪdʒ.weɪ/

Noun

a road that has a dividing strip between the lanes of traffic going in opposite directions

Example:
The accident occurred on the busy dual carriageway.
We drove for miles along the new dual carriageway.