the.com/ring road

A highway built so nobody has to experience the city it circles.

means A road that loops around a town or city so through-traffic can bypass the center entirely.

from A plain compound of 'ring' (circle) and 'road,' describing exactly what it is — the term took hold in the 20th century as cities built circular bypass routes to handle growing car traffic without routing it through old, narrow centers. Britain favors 'ring road'; America more often says 'beltway' or 'loop,' same idea, different accent.

purpose
diverts through-traffic away from congested centers
side effect
often spawns sprawl along its edges
irony
frequently becomes as jammed as what it bypasses
famous example
M25 around London, 117 miles of patience
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