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File:Petrol use urban density.svg

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Summary

Description

A graph showing the relationship between urban density and petrol use

Newman and Kenworthy’s 1989 study is often referred to in demonstrating a relationship between overall urban density and transport energy use. Newman and Kenworthy’s statistical methods have been criticised by a number of authors. The essential problem is examining the relationship between ‘motor spirit use per person’ and ‘persons per hectare’. Because population is in the denominator in one term and the numerator in the other, a spurious correlation emerges. Reanalysis of the primary data comparing gasoline use per person to area per person shows a more complex relationship. The revised graph shows this.
Source Own work
Author Hohum
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Revised graph.
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GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
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35,400 byte

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900 pixel

width

1,000 pixel

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1385d2f5606c44d106de62640bcacb4a6f639a1e

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Date/TimeThumbnailDimensionsUserComment
current22:04, 25 June 2008Thumbnail for version as of 22:04, 25 June 20081,000 × 900 (35 KB)Hohum{{Information |Description= |Source= |Date= |Author= |Permission= |other_versions= }}
21:53, 25 June 2008Thumbnail for version as of 21:53, 25 June 20081,000 × 900 (35 KB)Hohum
21:48, 25 June 2008Thumbnail for version as of 21:48, 25 June 20081,000 × 900 (35 KB)Hohum{{Information |Description= |Source= |Date= |Author= |Permission= |other_versions= }}

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