Definition of relief road noun from the Oxford Advanced Learner's Dictionary


relief road

; NAmE
(British English) Types of road
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a road that vehicles can use to avoid an area of heavy traffic, especially a road built for this purpose See related entries: Types of roadExtra examples It’s part of the relief road system around the city. There is a detailed map showing where the new relief road is going to go. There were plans for an M4 relief road to the south of Newport.