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Implement allocation of built-up area #11

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jipclaassens opened this issue Jan 19, 2024 · 2 comments
Closed

Implement allocation of built-up area #11

jipclaassens opened this issue Jan 19, 2024 · 2 comments

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@jipclaassens
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@jipclaassens jipclaassens changed the title Implement fractional instead of discrete urban land-use allocation. Implement continuous instead of discrete urban land-use allocation. Jan 19, 2024
@jipclaassens
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jipclaassens commented Jan 30, 2024

From email of Lewis:

If we want to set local maxima, we could use the following thresholds:

  • If a cell has the highest local share of built-up area in T1, it can only increase by 11 pp in T2 (or by 50% - local share if this is smaller than 11 pp)
  • If a cell doesn’t have the highest local share of built-up area in T1 but has neighbouring cells with built-up, it can only increase in T2 to the local maximum in T1 + 6 pp (or by 50% - local maximum if this is smaller than 6 pp)
  • If a cell is not built-up and doesn’t have any built-up in its neighbouring cells in T1, it can only increase by 4 pp in T2

We would just have to decide if we use an area of 3x3 or 5x5 (minus corners)

NB:

  • use wgs84 ~1km grid
  • 0.0% == non-builtup
  • 0.01% == builtup

@jipclaassens
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  • We need suitability for built-up and population
  • Household size could change over time, and have effect on the number of people per cell. We assume these change to be homogeneously per country.
  • Do we need to model non-residential use? Implement non-residential land use as static #18
  • Per cell, residential share/non-residential share/non-builtup. More possibility if cell is relatively a lot unbuilt.

Q:

  • Do we assume redevelopment? Of is the number of dwellings per built-up area initially fixed? Can we model a new Manhattan in developing countries?
  • can we get projections about household size?

@jipclaassens jipclaassens changed the title Implement continuous instead of discrete urban land-use allocation. Implement allocation of built-up area Feb 6, 2024
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