Maybe HS2 might take passengers between the Airport and City Centre, depending on the cost and ease of use of HS2, but you could probably fit all those passengers on the 2tph already loaded with London and Birmingham passengers. The existing station has 7 or 8 tph but they are short trains, which aren't full and many of the passengers want to go somewhere beyond Manchester, which they can't do on HS2. However personally I think if the Airport station is built it should have more than 2tph because I don't see Piccadilly filling a 400m train every 20 minutes.
After the Ordsall Chord is built I think all but one of the Airport's trains will go through Oxford Road, so it doesn't make sense to cut them back because there's nowhere else in Manchester to terminate them, so you don't gain anything there. It might be easier to add more stops in South Manchester though.
After the Ordsall Chord is built I think all but one of the Airport's trains will go through Oxford Road, so it doesn't make sense to cut them back because there's nowhere else in Manchester to terminate them, so you don't gain anything there. It might be easier to add more stops in South Manchester though.