Central Place Theory
Unlock Walter Christaller's urban model. Toggle Range and Threshold parameters across a hexagonal grid to understand the spatial distribution of hamlets, villages, towns, and massive Central Cities.
RELATED VISUALIZATIONS
AP HUMAN GEOGRAPHY
DTM Expanded Model
Scrub through the 5 stages of the Demographic Transition Model. Watch CBR, CDR, and Natural Increase shift while witnessing the real-time morphing of population pyramids.
AP HUMAN GEOGRAPHY
Migration Push/Pull Factors
Visualize the forces of global migration. Set economic, political, and environmental push/pull factors, and watch how intervening obstacles and opportunities alter the migration stream.
AP HUMAN GEOGRAPHY
Urban Models: Burgess/Hoyt
Compare the core North American urban models. Toggle between the Burgess Concentric Zone and Hoyt Sector models to understand socio-economic spatial layout.
AP HUMAN GEOGRAPHY
Agricultural Origins Map
Explore the First Agricultural Revolution on an interactive timeline. Click flashing hearths to discover the origin points for global domestication of plants and animals.