ring road
n. countable B1 Intermediate
n. a road that goes in a circle all the way around a city. You use it to avoid traffic in the city center.
n. a major road encircling a town or city, designed to bypass the urban center and reduce inner-city traffic congestion.
We took the ring road to avoid the busy city center.
The city council plans to expand the ring road to alleviate bottle-necks occurring at the major eastern junctions.
In many European capitals, the ring road serves as a physical boundary between the historic core and the rapidly developing industrial suburbs.
Usage
Common in British English; frequently referred to as a 'beltway' in American English.