central places: theory and applications national conference on geography education san juan, puerto...
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Central Places:Theory and Applications
National Conference on Geography Education
San Juan, Puerto Rico
September 25, 2009
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Walter Christaller
Die Zentralen Orte in Suddeutschland
Central Places in Southern Germany
Originally published in 1933, translated into English in 1966
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CENTRAL
PLACE
THEORY
More small places than
big places
Big places farther apart
than small places
Ratio of big places to small places relatively constant
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CENTRAL
PLACE
A settlement whose livelihood depends on the sale of goods and services to people in
the surrounding area
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Settlement Sizes
• Hamlet
• Village
• Town
• City
• Metropolis
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Central Place FunctionsCategories of like services found in a
central place
• Grocery Stores• Gas Stations• Jewelry Stores• Book Stores• Hair Stylists• Auto Dealerships
• Houses of Worship• Schools• Doctors• Dentists• Museums• Concert Halls
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Higher-Order FunctionsHigher-Order Central Places
• Provision of higher-order goods and services
• Trade in goods and services that are more valuable and infrequently demanded
• Because the goods and services are more valuable, people are willing to travel farther to shop.
• Higher-order goods and services are available in higher-order central places.
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Lower-Order FunctionsLower-Order Central Places
• Provision of lower-order goods and services
• Trade in goods and services that are less valuable and frequently demanded.
• Because the goods and services are less valuable, people are willing to travel only short distances to shop.
• Lower-order goods and services are available in lower-order central places.
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Would you travel farther to buy a new car or the week’s groceries?
To buy a new car
Would you travel farther to go to elementary school or to go to high school?
Would you travel farther to see your family physician or a heart specialist?
To see a heart specialist
To go to high school
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A Hierarchy of Educational
Services
Hamlet:
No Schools
Village:
Elementary
School
Town:
High School
City:
College
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How big is the trade area of a service center?
It depends on . . . - How far a consumer is willing to travel for the service- How many customers a service needs
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Each central place function has a:
• Threshold: the minimum number of people needed to support a central place function
• With fewer customers a store cannot afford to stay in business.
• Range: the maximum distance beyond which a person will not travel to purchase a good or service
• Beyond a certain distance people cannot afford the travel costs.
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“We never knew whether or not a village would have a shop or a restaurant, but we were developing a system. We used to look up the population on the map. The IGN puts this in tiny figures next to the village name. Our system went like this:
A WALK ACROSS FRANCE by Miles Morland
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Village Population What to Expect
300+ One all-purpose shop
500+ Shop and café
Occasional pharmacy
700+ 2 shops, 2 restaurants, garage, pharmacy, maison de la presse
200 Forget it.
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Villages become towns,and towns become cities.
The ‘Tween Places
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Central Places ofIntermetropolitan Corridors
Half-way between Washington and Richmond?
• FredericksburgHalf-way between Richmond and
Norfolk?• WilliamsburgHalf-way between Washington and
Baltimore?• Columbia
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Why do we not ever see a perfect central place hierarchy?
• Physical geography is important! Topography and hydrography interfere.
• Consumer behavior is determined by more than economic considerations.
• The automobile has made long-distance travel popular (cheap and easy).
• People make multiple-purpose shopping trips, often bypassing the smallest places.
• The Internet has made it unnecessary to have customers nearby.
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The Practical Value ofCentral Place Theory
Where would you go for ideas, if . . . .
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You were Dutch and needed to settle the newly drained polders of the Zuider Zee?
Central Place Theory
You were an archaeologist and wanted to know where to dig next?
You were Brazilian and needed to settle people on the Amazon frontier?
Central Place Theory
Central Place Theory