What does "carriageway" mean?

The part of a road that carries traffic.

What is a synonym for "carriageway"?

Common synonyms include: alley, arterial, artery, avenue, blind alley, boulevard.

noun

noun ·Rare ·Advanced level

Noun

1
The part of a road that carries traffic. Hong-Kong, Ireland, UK
2
one of the two sides of a motorway where traffic travels in one direction only usually in two or three lanes wordnet
3
One side of a dual carriageway that carries traffic in a single direction. Hong-Kong, Ireland, UK

"The carriageway was reduced to one lane."

From carriage + way.