 It goes under the Wilmslow railway viaduct holding the Crewe to Manchester Piccadilly railway line, turns right at a roundabout where the B5166 joins, and runs past Wilmslow town centre to a set of traffic lights where it turns left and becomes Manchester Road.Between the roundabout and the traffic lights it is part of what was the A34 before the A34 Wilmslow bypass was built in the mid-1990s.From the traffic lights, the road heads out toward Manchester Airport, being initially Water Lane, then shortly after, Altrincham Road.