4 ms·

Some of the engineering is terrifying - less than a metre separation between the tunnel they are boring and adjacent tube lines! https://www.theengineer.co.uk/

• Animats 9y ago
  Look at the route. There are twists and turns to avoid various underground obstacles. Most station work involved acquiring and demolishing something before work could even start. There was supposed to be a Crossrail 2, running north-south, but it looks like that's being canceled. After Brexit, London will be much less of a banking center, and traffic is expected to drop.
  • Boothroid 9y ago
    So that's a bonus for the environment then, what with all the concrete it would have required.
    • dx034 9y ago
      Given expected passenger numbers and the fact that Crossrail 2 (as Crossrail) would stretch to outer parts of London with a high share of care ownership, the reduction in car traffic would probably outweigh emissions created for concrete.