Calibrating Global Urban Boundaries

paulnovosad · x · 2026-07-15

The authors manually reviewed the 30 largest cities and countries, adjusting thresholds where necessary.

The core idea isn't to rigidly apply a uniform algorithm, but to define urban boundaries that are suitable for research and consistent across regions.

Related event: Researchers release open global city boundaries dataset for consistent cross-country urban definition(9 posts)→

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