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From: jis1@mtgzz.UUCP (j.mukerji)
Newsgroups: net.railroad
Subject: Re: Signals
Message-ID: <1573@mtgzz.UUCP>
Date: Mon, 20-Jan-86 15:51:52 EST
Article-I.D.: mtgzz.1573
Posted: Mon Jan 20 15:51:52 1986
Date-Received: Tue, 21-Jan-86 07:33:49 EST
References: <1733@brl-tgr.ARPA>
Organization: AT&T Information Systems Labs, Middletown NJ
Lines: 20

> Can anyone tell me about the LIRR's color signal system is?
> Red over green seems to mean all clear....

I have seen LIRR use color light signals only inside the East River Tunnels.
Do they use them anywhere else? At least on the mainline, the Port Jeff line
and the Babylon - Montouk line they seem to use the old Pennsy style lighted
semaphores (or whatever they are called in railroadese). I have never quite
figured out what the colored lights in the East River tunnels mean.

Also, during the morning rush hours LIRR trains going into Penn Station seem
to run bumper to bumper (literally) through Sunnyside. Anyone know how they
do that? Like Air traffic control do they have a visual mode of operation
(like VFR) where each motorman simply makes sure that he does not bump into
the train ahead? Or are there any hidden signals, prehaps cab signals that
aid them in that exercise?

Jishnu Mukerji
AT&T Information Systems Labs
Middletown NJ
mtgzz!jis1