You can’t travel through London either. It has 14 termini. That issue plagues every major UK city and is a Victorian legacy. IIRC Crossrail will be the first solution in the UK.This.
Infrastructure in the North West is chaotic. Just a few examples of literally hundreds:
1. You can’t travel “through“ Manchester (or Liverpool) by train, both are termini. Actually, you can but only on slow services using Trans Pennine. The same is true in London of course but connections are on foot or by the absurdly slow tram.
A couple of acquaintances of mine were TA Sapper specialist officers both of whom worked for British Rail. They showed me and some fellow Sappers around the Manchester Olympic bid in IIRC 1993. Basically the bid was predicated around the selection criteria that requires lasting public good and it picked up on the fact that the Atlanta Olympics were transport chaos.
So the core of the transport bid was railways. Specifically a circular route around the city, linking up the two termini and providing a “ringrail” connecting suburbs.
I believe there were two problems with transport pitch for the 2000 Olympics. Firstly it was made by lots of boring men talking about machinery and secondly their competitor was Sydney.