The HS2 trains don't serve the same route south of Crewe. How can they be said to provide Liverpool with an adequate service to the WCML south of Crewe ?
Supposedly we are spending billions to buold a station at Manchester Airport (and a tunnel from there to Piccadilly) so that that can serve as a railhead for places like Wilmslow. Why do they need residual WCML services as well ?
Also talking about Liverpool's Birmingham services is comparing apples with pears. Manchester has Birmingham (and beyond) services as well. Why aren't they adequate to connect to connect Manchester to the WCML ?
I don’t understand the problem. Liverpool’s current London trains are fast south of Crewe, which is surely a good thing?
Wilmslow is also a town of its own, like Runcorn, with a rail heritage, some inbound travel and a walking catchment - not purely a railhead. Plus it adds another fast Crewe service (which is the second tph for Scotland connection) so it serves a purpose.
The WCML will still need to exist and will skip even less stations, so the residual service is key. It’s also about more capacity to secondary places so that the big cities have their fast trains. But guess what, the traditional termini, usually spurs, will still be those same big cities.
But Manchester will have three different routes all with interim demand by HS2. Whereas Liverpool will basically have the same principal approach with the interim places covered by other services. Blame the Victorians. Arguably Warrington BQ is now an option, but it is not established at all.
Nothing else runs from Macclesfield, Stoke, Stockport or Wilmslow to London - so Manchester has to receive those services by default. They also add a huge amount of capacity from those stations commuting into Manchester.