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Class 13a: Services and transportation Tertiary economic activity Central place theory Transportation geography Air pollution
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What are services? No tangible product “Leftover” economic activity Consumer vs. business vs. public –Retail vs. personal –Producer vs. transportation
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What are services? Bifurcated wages, skills Labor more important, but fewer unions More women (“pink-collar” workers) Tertiary, quaternary, or quinary
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Where are services? From local to global More developed = more service jobs “Post-industrial” economies
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Central place theory How are services distributed? Why does a regular pattern exist? How are large and small cities connected? Central place: market center for region
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Central place theory Range: how far are you willing to travel for a service? Threshold: how many customers do you need? Assume shortest distance possible Threshold < range Market area, not city size, matters
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Central place theory Hexagonal market areas –Cover all space –No overlap First order: largest threshold and range Second order, etc.
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First order Range
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First order Range
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First order New range
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First order Second order
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First order Second order
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First order Second order New range
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First order Second order Third order New range
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First order Second order Third order
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First order Second order Third order
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OrderTheoretical number Actual number Theoretical spacing Actual spacing 215415311.210.3 339 22.423.6 410944.849.6 52-3389.694.0 60-10179.2--
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Central place theory Accessibility based on time, not distance Administrative principle –Political boundaries affect consumers –Lower taxes, more permissive rules
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So what? Model for regional development Explains decline as well as growth –Neighborhood or city scale The point is not the hexagons, but the hierarchy and interconnectedness of places
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Transportation Enables all other economic activity –Derived demand Important in its own right Accessibility: existence of opportunities Mobility: ability to get there Equity of accessibility and mobility
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Transportation geography Shrinking distance Changing technology Changing accessibility and mobility Impact on landscape
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Transportation geography New technology: container shipping No break-of-bulk Less labor needed Less “slippage” Concentration on a few ports
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Rotterdam
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