Subject:
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Re: Question for model RR gurus
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Newsgroups:
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lugnet.trains
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Date:
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Sun, 19 Aug 2001 22:16:50 GMT
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Viewed:
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479 times
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Larry Pieniazek wrote:
> An operating trolley pole that reversed at the end of the run would be
> pretty nifty... but reversing loops are not at all unprototypical for
> streetcar service. Over time the labor to go out and crank down the pole,
> lock the control cab and reverse the process at the other end adds up. (In
> Zurich, which is the most dense street railway system that I have seen, in
> terms of lines per square mile of populated area, all the lines had
> reversing loops at the ends (and sometimes at stops not quite at the end but
> that were terminations during rushhour) to facilitate this.
The trolley busses in Boston use a reversing loop also (the bus station
in Harvard Square is interesting, it's underground, in two levels
(arrivals and departures)). The green line uses reversing loops for the
trolley portion (recall what I've said about the reversing loop in the
Park Street Station before). Of course, for most trolley lines, you
technically have a dogbone arrangement, though you do have crossovers.
What would be really neat is to have a real overhead power mechanism for
LEGO trains. The nifty thing with overhead is you loose the reversing
loop wiring problems (your track becomes one half of the circuit and the
overhead wire becomes the other).
--
Frank Filz
-----------------------------
Work: mailto:ffilz@us.ibm.com (business only please)
Home: mailto:ffilz@mindspring.com
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Message is in Reply To:
 | | Re: Question for model RR gurus
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| (...) That's what an interlocking tower USED to do. Nowadays they are getting rare. With CTC (Centralised Traffic Control) an entire division or more can be controlled from far far away. Umpteen thousand miles of the Union Pacific are all controlled (...) (23 years ago, 19-Aug-01, to lugnet.trains)
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