31–40 of 170 posts
I was very surprised to read how little Swiss labor (14%) was used in its construction. Most of the labor was Italian (29%): http://www.bloomberg.com/news/articles/2016-05-30/swiss-made...
It's not that surprising, it is? I would expect Italian wages to be considerably lower.
This is $12.5b and 17 years for a 35 mile tunnel through solid rock. Seattle's transit plan is $50b, 25 years, and laying tracks on grade. Probably about the same number of miles. http://seattletransitblog.com/2016/03/24/st3-draft-plan-over...
However, building passenger transit in an urban area is a very different thing, even if a long underground tunnel is a challenge in itself. Mining through solid rock is not really that expensive these days. But when building metropolitan transit, arranging traffic around of an existing population is not easy, and building transit stations is an expensive business. Making a tunnel through solid, hard rock is in any ca…
> The completed tunnel travels up to 2.3 km below the surface of the mountains above and through rock that reaches temperatures of 46C. Is this solely because of the pressure or is there something else (say water?)? Also, I think they forgot degrees (°).
Is it really the deepest, doesn't it just happen to have a lot of mountain on top of it? Other tunnels, by reference to sea level, are probably deeper?
You can check a small animation[1] of the rail traffic from this upcoming weekend when the first passenger trains will pass through the tunnel http://maps.vasile.ch/transit-sbb/?hms=08:40:00&day=2016-06-... [1] http://imgur.com/cN3HKPp?v=2
You can check a small animation[1] of the rail traffic from this upcoming weekend when the first passenger trains will pass through the tunnel http://maps.vasile.ch/transit-sbb/?hms=08:40:00&day=2016-06-... [1] http://imgur.com/cN3HKPp?v=2
So how much time approximately will be saved vs the existing routes?
You can check a small animation[1] of the rail traffic from this upcoming weekend when the first passenger trains will pass through the tunnel http://maps.vasile.ch/transit-sbb/?hms=08:40:00&day=2016-06-... [1] http://imgur.com/cN3HKPp?v=2
So how much time approximately will be saved vs the existing routes?
Earlier quoted context omitted.
Ahead of schedule based on an adjusted schedule during construction. They are slightly behind the originally planned schedule (a couple years). Obviously this is still a very well executed project overall.
Well obviously it's part of the Requirement Engineering process to adjust the schedule when the requirements change.
"... longest and deepest rail tunnel ..." and "... delivered on time and within budget ..." Only in Switzerland, I guess. :) I wish there were better write ups of how the planning for this came together and what differs from other somewhat similar huge projects.