Yes, I know that metrolink has nothing to do with the SEMMS project, but the metrolink line builds pretty much exactly on the alignment of the route, pretty much the last nail in SEMMS' coffin.
If HS2 Ltd. says that the HS Station for Manchester Airport should be in a sensible place, just north of the M56 spur in 'Jet Parks' then it should be the case that the Metrolink line should pass through this way on it's way to Manchester Airport to give a proper link in, and leave the land that would be needed for SEMMS to be able to be completed. Would be very helpful to have as part of the HS2 project (all the way to Bredbury if possible) providing much better links for High Peak to Manchester Airport.
By the way, I'd be looking at a double dumbell roundabout with T2 off the first, and T1/3 off the second, with slips as is on the T2 side and east facing slips on the T1/3 side. The link to the current local road network on the north side by a D2 loop between the two roundabouts, off witch, the current S2 local roads would branch (by traffic light) and there would be access to the HS Station.
D3M to the east, retaining D2M through the junction as is, terminating on the M56.
Would be a bit tight coming off the M56, but not much worse than it is now, as the majority of traffic from the M56N would be heading for Manchester Air, and the majority from the south down the M560. If it becomes a problem, access from the south to the airport could be provided by means of some extra slip roads, splitting the northern access before the underpass and merging one lane into the D2M, with an additional slip over the M56 merging on the left before the first roundabout.
