On 25 Mar, 08:47, "Lüko Willms" wrote:

But there may be a lot of utility lines ond other uses of the
underground to be removed before one can go on boring; also London
Crossrail is planned to have more stations, and underground stations,
which in itself would be more expensive than the one Stratford Int'l
box, plus interchanges with existing underground and train stations.
That is a lot of extra work, which makes the London Crossrail tunnel
more expensive to build than the London HS1 tunnel with the one open
station in its middle.

I thought about the cost of stations - then remembered that the
Jubilee Line extension included four new underground stations,
interchanges with three existing underground stations (plus 2 new and
2 altered surface stations) and it /still/ only (sic) £3.5bn.

That's not just a bit less than Crossrail - that's one fifth of the
predicted Crossrail cost.

Remember, Crossrail = HS1 + Jubilee Line Extension + WCML upgrade.

Ian