|From:||Devizes Road (SU155838)|
|To:||Wootton Bassett Road (SU140841)|
|Distance:||1 miles (1.6 km)|
|Now part of:||A4289|
|Route outline (key)|
Rather oddly, the entire route is now the A4289, which is simply a straight renumber of this route. This can be explained by the fact that the road seems to be shown as Class II in 1975 (possibly the B4006, as it fills in the gap of that road), allowing the A4015 number to be reused elsewhere.