1. Central Place Theory Ryan Cobelli

2. Central Place Theory CPT is a geographical theory that seeks to explain the number, size and location of settlements in an urban system. Created by Walter Christaller

3. CPT Assumes Abstract space (flat and limitless) Evenly distributed population/resources All settlements exist in equal lattice (triangle) pattern Perfect competition (no excess profits, equal buying power, common sense) Humans are reasonable

4. CPT Asserts Most efficient for settlement location is lattice (triangle/hexagon) pattern Provides no overlap 3 Principals (known as K values) K=3 Marketing K=4 Transportation/Traffic K=7 Administrative 5 Community Sizes Hamlet, Village, Town, City, Regional Capital Settlements are just 'central place' for surrounding areas

5. CPT Explained Place a lattice pattern over a flat space Make a settlement (of the sizes listed) at the intersections K Value Systems increment based on K value EX: Marketing (K=3) 2 Cities 6 Towns 18 Villages 54 Hamlets

6. CPT History Developed as standard relationship between cities and "suburbs" Created for economic reasons Began development in 1933

7. CPT Flaws The world isn't flat () People aren't reasonable Economic status isn't considered Population density isn't considered

8. Central Place Theory Works well here

9. Central Place Theory Not here