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From: larry@kitty.UUCP (Larry Lippman)
Newsgroups: net.railroad
Subject: Re: Signaling on the NYC Subway
Message-ID: <663@kitty.UUCP>
Date: Wed, 25-Dec-85 14:50:59 EST
Article-I.D.: kitty.663
Posted: Wed Dec 25 14:50:59 1985
Date-Received: Sat, 28-Dec-85 01:03:11 EST
References: <981@brl-tgr.ARPA>
Organization: Recognition Research Corp., Clarence, NY
Lines: 27

>> Could someone explain the signals used on New York's subway system?  There is
>> quite a variety of them, with different numbers of red, yellow and green
>> lamps in various arrangements.
> ...
> This is only part of the story.
> This is one of my favorite subjects in the world.

	Mine, too!  One of my favorite books (I am into historical technology)
is a reprint of a book entitled: "Interborough Rapid Transit" originally
published in 1904, and reprinted by The Arno Press, LC number 71-90436.  This
book provides a number of fascinating photographs and details on the first
New York City subway system; there is about 10 pages on the signalling system.

> I can go on at any length or depth on this that anyone wants to hear.  I
> spent a large part of my childhood and adolescence in NY roaming the
> subways, communicating with the then-NYCTA, collecting prints, circuit
> diagrams, interlocking plans, etc....

	I'd love to find out more details, and would like to get some further
documentation for my "collection" if you have any sources.

==>  Larry Lippman @ Recognition Research Corp., Clarence, New York        <==
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