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Path: utzoo!linus!philabs!cmcl2!seismo!umcp-cs!mangoe
From: mangoe@umcp-cs.UUCP (Charley Wingate)
Newsgroups: net.railroad
Subject: Re: Ties
Message-ID: <1627@umcp-cs.UUCP>
Date: Thu, 19-Sep-85 08:07:21 EDT
Article-I.D.: umcp-cs.1627
Posted: Thu Sep 19 08:07:21 1985
Date-Received: Sat, 21-Sep-85 10:44:38 EDT
References: <1591@brl-tgr.ARPA>
Organization: U of Maryland, Computer Science Dept., College Park, MD
Lines: 16

In article <1591@brl-tgr.ARPA> Nicholas.Spies@H.CS.CMU.EDU writes:

>	 The interesting messages about rail technology prompts me to
>	 ask whether any of you know what has happened to the idea of
>	 using pre-stressed concrete for RR ties. Also, what is the
>	 service life of rails, ties, and the track bed? As the three
>	 are a integral unit it would be interesting to know what the
>	 ideal qualities of each would be, which may suggest new ways
>	 to build tracks requiring less maintenance, give longer
>	 service life, etc. 

The AMTRAK line from DC to NY is all laid with concrete ties.  It's the most
massive-looking right-of-way I've ever seen.


Charley Wingate