Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.3 alpha 4/15/85; site amdcad.UUCP
Path: utzoo!linus!decvax!tektronix!hplabs!nsc!pesnta!amdcad!phil
From: phil@amdcad.UUCP (Phil Ngai)
Newsgroups: net.auto,net.consumers
Subject: Re: 55mph speed limit
Message-ID: <1304@amdcad.UUCP>
Date: Sat, 11-May-85 19:40:13 EDT
Article-I.D.: amdcad.1304
Posted: Sat May 11 19:40:13 1985
Date-Received: Mon, 10-Jun-85 05:31:38 EDT
References: <5500003@petrus.UUCP> <3560@alice.UUCP> <556@digi-g.UUCP> <825@ccice5.UUCP>
Organization: AMDCAD, Sunnyvale, CA
Lines: 19

In article <825@ccice5.UUCP>, rdz@ccice5.UUCP (Robert D. Zarcone) writes:
> > I do: the Interstates were engineered for safe operation at 70 mph.
> > They were not designed for 135 mph.
> 
> Yes and no.  The Interstate highway building began in the late 1950's and
> really picked-up in the 1960's.  Cars at that time were about twice as
> heavy as they are today, on average.  Guard rails, light posts, etc. were
> designed to retain and break away when hit by that greater mass.

I don't mean they are designed to let you survive a crash at 70 mph.
I mean you can drive at 70 mph without your car falling off the road
when you take a turn.

-- 
 I speak for myself and no one else.

 Phil Ngai (408) 749-5720
 UUCP: {ucbvax,decwrl,ihnp4,allegra}!amdcad!phil
 ARPA: amdcad!phil@decwrl.ARPA