Quote:
Originally Posted by moosejaw
They use the exact one in Holland and its now going anywhere? Buses and trains would use it, extending its life.
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i dont see how keeping a tunnel from the 1950s with buses and trains in it is any different then cars? how would that be "extending its life?" it would still be the same age regardless of what is going through it.
Quote:
Originally Posted by moosejaw
Have you been to Japan?
They have like a lot of tunnels even tunnels connecting islands..................you know else they have a lot of?.............earthquakes........do you know how they address it........all trains and tunnel traffic stop before entering if sensors detect a quake.
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i don't know enough about their tunnels and the sediments they sit on, but do they have piles going down to bedrock? how are the tunnels fixed to the floor?
here they are sitting on soft silt subject to liquefaction. there is nothing under the tunnel really except mud. then ontop the only thing holding it down is a net and large boulders. the bounders move, thing pops up and dies.
sure, we could put in a warning system. but we are left with an ancient tunnel, with a train line in it that cost billions upon billions and was unnecessary since there isn't that much demand, and there is a risk of the tunnel collapsing and either killing anyone inside, like currently, or the risk that it collapses and the transit line that is pointless and cost billions upon billions is now useless for years, probably forever as building a new tunnel there for transit after the event would be pointless.
and say we do this, build a train line through it, the maintenance of that tunnel would be very expensive for a line that is underutilized. costs increase exponentially as the thing ages.
but ignoring all of that, looking at just the feasibility of rail going through that corridor, there is no demand. what is this fantasy people have thinking something like SkyTrain going into Delta along Highway 99 is a good idea? there is nothing to suggest that this would ever be feasible in the next 30 years. the Canada-Line cost ~100 million/km. so taking the most direct route, #3-Steveston-Massey-River-Ladner, that is 13km. that means at minimum 1.3 billion at 2009 prices. or, if you want to go to the ferry terminal, that is 25km, or 2.5 billion in 2009 prices.
so, for 2.5 billion dollars, in 2009, you get a line that may or may not be useless if there is an earthquake, that costs a crazy amount in tunnel maintenance, and goes through mostly farm land.
based on YTD numbers from BC ferries, assuming the average car has 2 people in it, then ~50% of people are foot passengers. the Spirit Class has a capacity of 2,100 passengers. this means ~1,050 passengers are on foot.
so lets assume 2 Spirit Class ferries arrive and depart at the same time, every time. so 2,100 people per hour would use the transit line.
(assuming they all want to go NoF) Canada-Line has an hourly capacity of 13,000 per hour. now on top of this, you need a lot more trains to service the terminal, because each train has ~450 capacity you would need to send a few trains every hour. trains they don't have, plus then all the extra track work/tunnel work/station work/security work/etc.
so, i don't see the need.
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