Synthetic Population Spatial Sampler

• Run a population synthesizer as usual

• Specify a sample rate for each zone

• Assign HHs into bins by income, size, workers by zone

• Sample HHs by bin to match zone level sample rates

• Set the expansion weight of each record

• Run travel model as usual

• Average trip matrices before assignment

• For example:

  • Oversample study area zones @ 400%
    • Replicate a synthetic household four times
    • Set the weight to 0.25
  • Undersample zones outside study area @ 25%
    • Select 1 in 4 synthetic households
    • Set the weight to 4

Example

test\test_popsampler.py

See Also

https://github.com/RSGInc/populationsim