London’s Crossrail Is a $21B Test of Virtual Modeling (2016) • Hacker News Board

Re: London’s Crossrail Is a $21B Test of Virtual Modeling (2016)

#11

Post by londons_explore » Sat, Jul 31, 2021, 9:37 AM UTC

DrBazza wrote: post #9

jl6 wrote: post #8

Earlier quoted context omitted.

Only half a billion? So 2% over budget? That sounds great for an infrastructure project.

According to wikipedia, at least, it's 4bn [1] But you're correct, for a (UK) infrastructure project that's actually pretty good especially considering it has to go underground through a city that has medieval and Roman ruins littered all over the place [2] > The total estimated cost has risen from an initial budget of £14.8 billion to £18.7 billion, as of August 2020.[7] 1. https://en.wikipedia.org/wiki/Crossrail ht…

It isn't done yet... To really see how far the budget miss is, you have to wait for the thing to be finished and all costs accounted for, while also seeing how much the project has been scaled back (for example travel time goals not met because the trains are poorer performance than initially specced)

Re: London’s Crossrail Is a $21B Test of Virtual Modeling (2016)

#12

Post by Symbiote » Sat, Jul 31, 2021, 9:41 AM UTC

bambax wrote: post #7

flancian wrote: post #2

(2016)

Indeed. From the article: > The first Crossrail trains will start running in 2017, and when the network is fully open in 2019, it will shuttle an estimated 200 million passengers every year. Currently the project hopes to be able to open one line in 2022 (maybe) and is at least half a billion pounds over budget.

That is a pessimistic spin on things. They're opening the final part of the line (the new tunnels), they're confident of doing this in February, and there's a clear plan on how the rest will open in stages in the following 12 months or so.

https://www.ianvisits.co.uk/blog/2021/07/12/crossrail-to-mak...

Re: London’s Crossrail Is a $21B Test of Virtual Modeling (2016)

#13

Post by Reason077 » Sat, Jul 31, 2021, 9:45 AM UTC

> "The first Crossrail trains will start running in 2017, and when the network is fully open in 2019, it will shuttle an estimated 200 million passengers every year."

We're half way through 2021 and still waiting! According to the latest project update, "Crossrail Ltd plans to bring the Elizabeth line into passenger service as soon as practically possible in the first half of 2022."

Re: London’s Crossrail Is a $21B Test of Virtual Modeling (2016)

#14

Post by tsywke44 » Sat, Jul 31, 2021, 10:23 AM UTC

Reason077 wrote: post #13

> "The first Crossrail trains will start running in 2017, and when the network is fully open in 2019, it will shuttle an estimated 200 million passengers every year." We're half way through 2021 and still waiting! According to the latest project update, "Crossrail Ltd plans to bring the Elizabeth line into passenger service as soon as practically possible in the first half of 2022."

Who cares? These are rail lines which will be used for centuries. Trust me, nobody will even remember a few years of delays.

Re: London’s Crossrail Is a $21B Test of Virtual Modeling (2016)

#15

Post by monkeydust » Sat, Jul 31, 2021, 10:28 AM UTC

Impressive implementation of a digital twin. Looking forward to finally taking a ride in this thing when it opens.

Re: London’s Crossrail Is a $21B Test of Virtual Modeling (2016)

#16

Post by moeadham » Sat, Jul 31, 2021, 11:06 AM UTC

tsywke44 wrote: post #14

Reason077 wrote: post #13

> "The first Crossrail trains will start running in 2017, and when the network is fully open in 2019, it will shuttle an estimated 200 million passengers every year." We're half way through 2021 and still waiting! According to the latest project update, "Crossrail Ltd plans to bring the Elizabeth line into passenger service as soon as practically possible in the first half of 2022."

Who cares? These are rail lines which will be used for centuries. Trust me, nobody will even remember a few years of delays.

I think a lot of people care.

Re: London’s Crossrail Is a $21B Test of Virtual Modeling (2016)

#17

Post by scoopertrooper » Sat, Jul 31, 2021, 11:17 AM UTC

bambax wrote: post #7

flancian wrote: post #2

(2016)

Indeed. From the article: > The first Crossrail trains will start running in 2017, and when the network is fully open in 2019, it will shuttle an estimated 200 million passengers every year. Currently the project hopes to be able to open one line in 2022 (maybe) and is at least half a billion pounds over budget.

Well, in fairness the events of the last two years have probably caused delays to many infrastructure projects.

Re: London’s Crossrail Is a $21B Test of Virtual Modeling (2016)

#18

Post by Joeboy » Sat, Jul 31, 2021, 11:43 AM UTC

moeadham wrote: post #16

tsywke44 wrote: post #14

Earlier quoted context omitted.

Who cares? These are rail lines which will be used for centuries. Trust me, nobody will even remember a few years of delays.

I think a lot of people care.

I care - I chose my new flat partly based on its proximity to a Crossrail station. Nevertheless I'm optimistic that the delays will seem like historical trivia in a year's time.

Re: London’s Crossrail Is a $21B Test of Virtual Modeling (2016)

#19

Post by edent » Sat, Jul 31, 2021, 12:00 PM UTC

moeadham wrote: post #16

tsywke44 wrote: post #14

Earlier quoted context omitted.

Who cares? These are rail lines which will be used for centuries. Trust me, nobody will even remember a few years of delays.

I think a lot of people care.

No one using the Jubilee line today cares about the construction delays.

Re: London’s Crossrail Is a $21B Test of Virtual Modeling (2016)

#20

Post by detritus » Sat, Jul 31, 2021, 12:03 PM UTC

tsywke44 wrote: post #14

Reason077 wrote: post #13

> "The first Crossrail trains will start running in 2017, and when the network is fully open in 2019, it will shuttle an estimated 200 million passengers every year." We're half way through 2021 and still waiting! According to the latest project update, "Crossrail Ltd plans to bring the Elizabeth line into passenger service as soon as practically possible in the first half of 2022."

Who cares? These are rail lines which will be used for centuries. Trust me, nobody will even remember a few years of delays.

Well, in the context of the linked article and hence the comments here, it seems relevant to mention the fact - 5 years after the article's publication - and to consider whether the reliance on comprehensive digital modelling might be in any way to blame for the delays?