Land-use specific spatiotemporal scaling laws of urban vitality dynamics: Evidence from 30 Chinese cities
This study analyzes mobility-derived urban vitality data across 30 Chinese cities over 25 working days to identify spatiotemporal scaling laws at both grid and concentric-ring scales. It measures how vitality fluctuations relate to built-environment factors across residential, employment, public-service, and transportation land-use categories, mapping their nonlinear associations with temporal scaling exponents.
Why it matters — It demonstrates that urban vitality scaling laws are not uniform but vary systematically by land-use type, revealing distinct temporal persistence and spatial attenuation patterns. This provides a framework for understanding how specific urban functions and built-environment thresholds shape human activity dynamics.
Caveat: The analysis is restricted to officially designated working days, meaning the identified scaling laws and built-environment relationships may not apply to weekends or holidays.