Bus route 18 (GNW) on the map of Manchester

Although the routes starts at Langley, in operation the route starts at Middleton Bus Station (Stand A).
Most services start / terminate at Manchester (Shudehill, both directions), and some services starts at Middleton (Stand N, southbound) and Collyhurst (northbound).
Some services start at Middleton (Stand A), go for a loop at Langley, and terminate at Middleton (Stand N).