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Path: utzoo!watmath!clyde!cbosgd!ihnp4!qantel!lll-crg!seismo!brl-tgr!brl-smoke!ron
From: ron@brl-smoke.ARPA (Ron Natalie <ron>)
Newsgroups: net.railroad
Subject: Re: Forwarding: Re: Signaling on the NY
Message-ID: <612@brl-smoke.ARPA>
Date: Wed, 15-Jan-86 13:38:06 EST
Article-I.D.: brl-smok.612
Posted: Wed Jan 15 13:38:06 1986
Date-Received: Mon, 20-Jan-86 04:30:31 EST
References: <1433@brl-tgr.ARPA> <212@micropro.UUCP>
Organization: Ballistic Research Lab
Lines: 17

> In article <1433@brl-tgr.ARPA> dennis@CSNET-SH.ARPA (Dennis Rockwell) writes:
> >Are these lines third rail or overhead?  I would think that the dead spot in
> >the third rail and easy public access to the third rail would rule out grade
> >crossings, ...
> >Dennis
> 
Washington Metro uses third rails (although you can't get anywhere near
a Metro track except in a station).  The cars have pickup shoes at all
four corners.  As long as the dead section is shorter than the length of
the car, seems that you wouldn't have a problem.

There is an AMTRAK draw bridge between Baltimore and Aberdeen where they
have to disconnect the overhead power wires when it opens as well.  However
it is done manually, and is such a pain AMTRAK wants to stop opening the
bridge.

-R