7 Development Plan · 7.2 Preparing a development plan

7.2.2 Population projection methods: arithmetic, geometric, incremental increase and logistic curve

A Development Plan is sized for a projected horizon-year population, worked out by methods that assume a constant increase (arithmetic), a constant rate (geometric), a changing increase (incremental) or growth that levels off at saturation (logistic).

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Key terms

  • population projection
  • arithmetic increase
  • geometric increase
  • incremental increase
  • decreasing rate of growth
  • logistic curve
  • saturation population
  • cohort component
  • decadal growth rate
  • compound annual growth rate
  • graphical method
  • ratio method

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Mains writingMains writing
  5. Common trapsFoundation
  6. Quick revisionFoundation

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