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Scenario modelling for land use evolution. Hedwig van Delden, RIKS ESPON Territorial Scenarios and Vision for 2050 Workshop at Comittee of the Regions 11 October 2013, Brussels. Questions.
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Scenario modelling for land use evolution Hedwig van Delden, RIKS ESPON Territorial Scenarios and Vision for 2050 Workshop at Comittee of the Regions 11 October 2013,Brussels
Questions • How will the current land use pattern evolve over time, given the current behaviour of spatial actors? • How will spatial policies influence future land use dynamics? • How will assumptions on socioeconomics and changes in behaviour influence future land use dynamics?
Zoning Land use Regional demands Land use at time T+1 & Interaction weights & Suitability Potential for change Accessibility & & = Land use change over time Transition Rule Cells change to land-use with highest potential until regional demands are met. Time Loop
Employment 2010-2030 by MASST3 Probability for Urbanization Baseline 2050
Employment 2010-2030 by MASST3 Difference in Urban Surface Scenario A and Baseline (2030)
Employment 2010-2030 by MASST3 Difference in Urban Surface Scenario C and Baseline (2030)
Employment 2010-2030 by MASST3 Agriculture in HNV farmland Scenario C Regions vs Baseline (2030)
Employment 2010-2030 by MASST3 Agriculture in HNV farmland Scenario B Cities vs Baseline (2030)
Key messages • To maximize effects of policies, it is important to consider the context in which they operate and their effects at a detailed spatial level • Urban sprawl is a powerful process. To mitigate uncontrolled sprawl, strong zoning regulations and enforcement are necessary. Areas near existing cities and along the (Mediterranean) coast are most under pressure • Socio-economic demands will drive metropoles to higher density levels than the current ones • Increase of land area for urban use isn’t inherently constrained by administrative boundaries. Policy interventions need to consider spill-over effects on neighbouring regions
Considerations for the Vision 2050 • What is the future of the agricultural areas: will the ongoing decline provide more space for nature or will it be used for food security and/or bio-energy? • Should valuable landscapes be protected through agricultural subsidies? • Should metropoles densify or should spill-overs to neighbouring regions be allowed or even stimulated? • Could the development of green belts be a solution to minimize urban sprawl and increase the quality of life?
Further information: www.et2050.eu (working documents) hvdelden@riks.nl