The A500 runs between Nantwich and junction 15 of the M6 at Hanchurch. The section between junctions 15 and 16 forms the shape of a letter 'D', with the M6 as the upright, and hence is always known locally as the 'D-road'.
An informative and entertaining description of the A500 and its history can be found at the SABRE website
Link .
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