adrienne o’neill fall 2008 energy technology and policy
TRANSCRIPT
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ENERGY AND THE BUILT ENVIRONMENT
Adrienne O’NeillFall 2008Energy Technology and Policy
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Austin Population Growth
1940 1970 2008 20380
1,000,000
2,000,000
3,000,000
4,000,000
5,000,000
Austin Population Growth
Growth in Austin City LimitsGrowth in the Five County Area: Bastrop, Caldwell, Hays, Travis and Williamson
Source: http://www.ci.austin.tx.us/demographics/
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Austin Student Demographics•UT enrollment• 1960: 20,396• 1975: 42,589• 2008: 50,006
•2005 Campus Area Housing • UT campus: 7K• West Campus: 12K• North Campus: 5K• Total= 35K
•West Campus zoning• Many years of latent
demand
http://www.ci.austin.tx.us/demographics/
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Current West Campus development
http://austinzoning.typepad.com/austincontrarian/2008/01/west-campus.html
South area of West Campus
North area of West Campus
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The US has a lot of land
http://www.radicalcartography.net/density-values.png
By 2050, US estimated population will be 420 million, (www.census.gov)
100 million more people must be added to urban areas
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Density Issues Lower Urban Density (sprawl)
Imperative for car usage, higher daily vehicle miles traveled per capita
Decreased car gas mileage due to congestion Public transportation is inefficient Higher Infrastructure costs
Roads (asphalt) Water conveyance (pumping and materials)
Single Family homes have poor energy efficiency compared to multi-family Surface area, materials use , capital energy cost
Sprawl displaces farming, higher food transportation costs to the urban area
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Road Transportation and Density
http://www.worldwatch.org/node/1730
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Density and Walking/Public Transportation
http://austinzoning.typepad.com/austincontrarian/2008/09/the-association-between-density-and-mode-of-commuting.html
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Barcelona vs. Atlanta
Source: Bertaud
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Examples
Development principles New Urbanism Smart Growth
Cities that have changed development patterns Curitiba Portland
Questions?
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References
Austin Contrarian (austinzoning.typepad.com/)
City of Austin Demographer (www.ci.austin.tx.us/demographics)
WorldWatch Institute (www.worldwatch.org)
Burchell, Robert. “The Costs of Sprawl-Revisited”
Alain Bertaud. “The Spatial Organization of Cities: Deliberate Outcome or Unforeseen Consequence?”