2016 ggsd forum - session 2: presentation by prof. walid oueslati, senior economist, environment and...
TRANSCRIPT
Walid Oueslati GGSD Forum, 09-10 November 2016
Urban Sprawl
Trends and policies
Sprawl: what is at stake?
2
Market failures versus policy failures
Cities are increasingly sprawling worldwide…but especially in Europe, Northern America and Oceania
4
Population and built-up area growth rate in OECD countries, 2000-2050
Land consumption for built-up areas will increase more rapidly than the population in 30 out of 34 OECD countries.
Source: OECD 2015: The Metropolitan Century
1975
Urban development in Paris region
1990
Urban development in Paris region
2000
Urban development in Paris region
2014
Urban development in Paris region
9
Measuring urban sprawl
Urban sprawlPopulation density
Fragmentatio
n
Composition:Dispersion -
Polycentricity
10
OECD SPINE Project
Policies : environmental effectiveness + economic efficiency
Urban sprawl : measurement and policies
Policy Topics• GHG emissions
• Air pollution
• Open Space
• Resilience
• Breakthroughs in
transport
Empirical track
Modelling track
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