The road starts at the A57 just outside
Sheffield City Centre which forms part of the
Sheffield Parkway, then runs to the
M1 at Junction 33. Beyond the roundabouts it heads west to
Rotherham which it passes as the dual carriageway, four-lane
Centenary Way, turning north and northeast towards
Conisbrough and
Doncaster, passing
Conisbrough Castle. Between Warmsworth and Balby it meets the
A1(M) at Junction 36. From there it heads east to Doncaster, then passing
Armthorpe it heads to the
M18 at Junction 4 where the road terminates. ==Motorway junctions==