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Revision:Christaller's CPT

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TSR Wiki > Study Help > Subjects and Revision > Revision Notes > Geography > Christaller's CPT

Christaller made a number of assumptions such as:

All areas have

an isotropic (all flat) surface
an evenly distributed population
evenly distributed resources
similar purchasing power of all consumers

The theory points out that to prevent spheres of influence overlapping or having gaps, the best shape was a hexagon.

The breaking point is where the consumer is equidistant from two/more similar services i.e. where the consumer is equally far from two or more centers.

The formula to calculate it is $d_{jk} = \frac{d_{ij}}{(1 + \sqrt {(P_i/P_j)})}$ where $d_{jk}$ is the distance from to , $d_{ij}$ is the distance between two towns, P_i/P_j are the populations of and and is the bigger town.