a type of road in Britain that is smaller than a motorway, but larger than a B-road 〔英国〕A级公路,干线公路〔小于高速公路但大于B级公路〕
Examples from the Corpus
A-road• That's likely to join up with a new A-road to East Anglia.• Show these cars a twisty, wet A-road, though, and the Limited transforms from man to He-man.