Models
Rank-Size Rule
Describes the remarkable regularity in many phenomena including the distribution of
city sizes around the world, sizes of businesses, particle sizes (such as sand),
lengths of rivers, frequencies of word usage, wealth among individuals, etc.
city sizes around the world, sizes of businesses, particle sizes (such as sand),
lengths of rivers, frequencies of word usage, wealth among individuals, etc.
Central Place Theory
Concerned with the way that settlements evolve and are spaced out. Theory proposed by Walter
Christaller that explains how and where central places in the urban hierachy should be funtionally
and spatially distributed with respect to one another.
Christaller that explains how and where central places in the urban hierachy should be funtionally
and spatially distributed with respect to one another.
Gravity Model
Takes into account the population size of two places and their distance. A mathematical
prediction of the interaction of places, the interaction being a functin of population size
of the respective between places and the distance between them.
prediction of the interaction of places, the interaction being a functin of population size
of the respective between places and the distance between them.
Concentric Zone Model
The Concentric Zone model is a model of the internal structure of cities in which
social groups are spatially arranged in a set of rings. A structual model of the
American central city that suggests the existence of five concentric land-use
rings arranged around a commnon center.
social groups are spatially arranged in a set of rings. A structual model of the
American central city that suggests the existence of five concentric land-use
rings arranged around a commnon center.
Sector Model
A structural model of the American central city that suggests the existence
of five concentric land-use rings arranged around a common structure.
of five concentric land-use rings arranged around a common structure.
Multiple Nuclei-Model
A model of town growth based on the fact that many towns and nearly all
large cities grow about many nuclei rather than around a simple CBD
large cities grow about many nuclei rather than around a simple CBD