There are a number of those spirl tunnels in the Alps. The last one was a
joint venture between France and Italy. It was designed to accommodate the TGV
(French) and the ETR 450/500 (Italian) HST trains.
The Swiss, and others, make use of an energy efficient method of
scheduling trains so that when one is going uphill another is coming downhill.
Instead of using dissipative resistors and blower fans they use the dynamic
braking of the boggie motors of the downhill train to partially power the
uphill train. Our Great Northern railroad did that, but when they were bought
out by the CB&Q most of the electrification was removed. A really stupid but
typical American move.
The Great Northern also had a very nice herald:
https://www.gnrhs.org/images/gn_logos/Gn9.jpg
>
>>
>> More accurately, we're #1 at being last. One look at our passenger
>>rail service will tell you everything.
>>
>
>HAH! Tell me about it!
>
>I lived in Switzerland. They know how to do trains. I rode two of them,
>twice a day. They have funiculars: two tracks with cable-connected cars
>that counter-balance each other. They have cog railways ("zahnzug") for
>when it gets too steep in the mountains. (Makes an awful racket!) They
>have spiral railroad tunnels, bored right through the Alps.
>
Chris
When the going gets weird, the weird turn pro
- Hunter S. Thompson
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