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Article #2100

Re: Definition of "Short Trip"

#2100
From: Steinn Sigurdsson
Date: Wed, 27 Jan 1993 12:35
42 lines
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In article <1993Jan27.154945.15317@ke4zv.uucp> gary@ke4zv.uucp (Gary Coffman) writes:

   In article <Jym.24Jan1993.1807@naughty-peahen> Jym Dyer <jym@mica.berkeley.edu> writes:
   >>> Some how the concept of SHORT TRIPS has been disregarded
   >>> or possibly there is a definition of short trip that I am
   >>> not familiar with.
   >> Short trip: any trip that can be completed on one tank of
   >> gas or less. 
   >
   >=o= Well, that may be "a definition," but it's certainly not
   >a useful one.  Unless there's a definition of "useful" that
   >I am not familiar with.
   >
   >=o= Given that most auto trips are on the order of 6 miles
   >or less, perhaps one could use "6 miles or less" as a useful
   >definition of "short trip."
   >    <_Jym_>


   One *could* say that if one accepted as given that most auto
   trips are of the order of 6 miles. But since that is incorrect,
   the statement would be incorrect. The average miles driven per
   auto per year in the US is roughly 12,000. That leads to an average 
   daily travel of about 33 miles. As an example, I drive about 60 miles
   a day in two 30 mile trips. I'm above the national average and
   there are those below the average, but 6 miles is *way* below
   the average.

doesn't follow Gary. How many "trips" per day does the average
auto make?
Also, even though the mean is 33m/d that does not mean that
_most_ trips are near the mean, the distribution is probably
quite skewed - for example for a while my mean daily travel
was dominated by occasional trips of few hundred miles
while my modal trip was under five miles.

*  Steinn Sigurdsson   			Lick Observatory      	*
*  steinly@lick.ucsc.edu		"standard disclaimer"  	*
*  I know people whose idea of fun				*
*  Is throwing stones in the river in the afternoon sun		*
*  Oh let me be as free as them					*
*  				- BB 1986			*
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References: <1993Jan15.072734.11941@organpipe.uug.arizona.edu> <1993Jan17.172955.12468@ke4zv.uucp> <Jym.24Jan1993.1807@naughty-peahen> <1993Jan27.154945.15317@ke4zv.uucp>

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Path: arc1-ca.pugleaf.net!sparky!uunet!think.com!spool.mu.edu!agate!darkstar.UCSC.EDU!darkstar!steinly
From: steinly@topaz.ucsc.edu (Steinn Sigurdsson)
Newsgroups: sci.energy,talk.environment
Subject: Re: Definition of "Short Trip"
Date: 27 Jan 93 12:35:50
Organization: Lick Observatory/UCO
Lines: 43
Message-ID: <STEINLY.93Jan27123550@topaz.ucsc.edu>
References: <1993Jan15.072734.11941@organpipe.uug.arizona.edu>
 <1993Jan17.172955.12468@ke4zv.uucp> <Jym.24Jan1993.1807@naughty-peahen>
 <1993Jan27.154945.15317@ke4zv.uucp>
NNTP-Posting-Host: topaz.ucsc.edu
In-reply-to: gary@ke4zv.uucp's message of Wed, 27 Jan 1993 15:49:45 GMT