Urban Patterns Study Notes

Urban Patterns

Definition and Complexity of Cities

  • Cities can be described as stimulating, agitating, entertaining, and frightening environments; they cater to a diverse population with different needs.

  • Urban geography clarifies the complexities of urban patterns, highlighting the distribution of populations and activities.

  • Models provide frameworks for understanding urban distributions and the underlying reasons for these patterns.

Key Urban Locations Discussed

  • Rochefort, France

  • Columbus, Ohio

  • Cleveland, Ohio

  • London, England

  • Paris, France

  • Boston, Massachusetts

  • Cambridge, Massachusetts

  • Louisville, Kentucky

  • Los Angeles, California

  • Houston, Texas

  • Mexico City, Mexico

  • Baltimore, Maryland

  • Brussels, Belgium

  • Mumbai, India

  • Curitiba, Brazil

  • Pietermaritzburg, South Africa

  • Buenos Aires, Argentina

  • Beijing, China

13.1 The Central Business District (CBD)

Key Issue: How are cities defined?

  • Definition of CBD:

    • The CBD represents the downtown area with a concentration of consumer, business, and public services.

    • It serves as the focal point of urban communities, easily accessible from various parts of the region.

  • Characteristics:

    • Public Services: Includes city halls, courthouses, libraries, and museums, aimed at accessibility for locals.

    • Business Services: Offices for advertising, finance, law, etc., cluster in the CBD for easy access to clients and resources. Notably, personal relationships remain crucial even in the digital age.

    • Consumer Services: Catering to workers in the business district; includes retail shops and entertainment venues.

    • Changes Over Time: CBDs have shifted from industrial hubs to service-oriented zones with some residential return.

Figures Illustrating CBD Characteristics

  • Public services in Louisville's CBD

  • Business services like the KFC Yum! Center

  • Consumer services including shops and hotels

  • Historical manufacturing locations replaced with modern businesses

  • Recent housing development in CBD areas with new living spaces attracting urban dwellers.

13.2 Defining Urban Settlements

Key Issue: How are cities defined?

  • Urban settlements include cities, urban areas, and metropolitan areas.

  • Definitions:

    • Central City: Legally incorporated urban areas, often experiencing population decline.

    • Urban Area: Combination of a central city and surrounding suburbs (e.g., urbanized area with at least 50,000 residents or an urban cluster with 2,500-50,000 residents).

    • Metropolitan Statistical Area (MSA): A core urban area with at least 50,000 people and surrounding areas with strong socio-economic ties.

    • Micropolitan Statistical Area (µSA): Areas with populations between 10,000 and 50,000.

    • Census data from 2010 indicated 486 urbanized areas and 3,087 urban clusters in the U.S., with approximately 70% of the population in urbanized areas.

Local Government Fragmentation

  • Historical annexation allowed cities to grow by assimilating peripheral land, providing access to services.

  • Current trends show less annexation as peripheral communities maintain independence in service management.

Overlapping Metropolitan Areas

  • Instances like the Northeastern U.S. also known as Megalopolis show extensive urban sprawl and overlapping metropolitan structures.

13.3 Models of Urban Structure

Key Issue: Where are people distributed within urban areas?

  • Three primary models describe urban distribution:

    1. Concentric Zone Model (Burgess, 1923): City grows in rings around a central area. Rings in order:

    • CBD: Nonresidential activities.

    • Zones in transition: Industry and lower-quality housing.

    • Working-class homes: Modest older houses.

    • Better residential zones: Spacious middle-class homes.

    • Commuters' zone: Outlying areas where people live and travel to CBD.

    1. Sector Model (Hoyt, 1939): Development in a series of sectors radiating outwards from the center, influenced by environmental factors.

    • Central business district

    • Transportation and industry

    • Low, middle, and high-income residential spans outward from the CBD.

    1. Multiple Nuclei Model (Harris and Ullman, 1945): Different activities cluster around multiple nodes (e.g., universities, parks) rather than a single CBD.

Peripheral Model

  • Developed by Chauncey Harris--suggests urban areas comprise an inner city and suburban nodes linked via ring roads.

13.4 Applying the Models

  • Census data helps visualize social distinctions and residential patterns in urban demographics through the stated models.

  • Social Area Analysis: Investigates demographic factors affecting housing distributions and correlates models with observable patterns across urban settings.

  • Limitations to models depending on historical context; contemporary urban patterns may not abide by earlier models due to changes in social dynamics.

13.5 Structure of Europe's Cities

Key Issue: How do non-U.S. cities differ?

  • Interpretation of CBDs differ in size, population density, and land use compared to U.S. cities (e.g., Paris vs. Detroit).

  • Historical architecture and planning restrict modern construction styles; high demand for housing leads to significant rent costs in city centers.

Urban Distribution in Cities like Paris

  • Concentric zones and sectors are similar to U.S. models, with housing patterns altered by history. However, richer residents tend to cluster in specific areas due to historical preference.

13.6 Cities in Developing Countries

Key Issue: How are non-U.S. cities structured?

  • Urban settlements in developing countries often reflect historical roots influenced by colonial governance structures.

  • Multi-ethnic cities demonstrate varied urban models as different socio-religious communities establish distinct residential zones.

13.7 Applying the Models to Developing Countries

  • Urban patterns in places like Buenos Aires showcase a concentric zone model, with neighborhoods evolving to accommodate immigrant populations seeking employment.

13.8 Urban Transportation Challenges

  • The significance of public transportation varies geographically; most trips within U.S. cities heavily employ motor vehicles.

  • Issues like traffic congestion, increased urban sprawl, and urban planning lead to administrative measures like congestion charges and innovative transport strategies.

13.9 Suburban Sprawl & Segregation

  • Suburban growth leads to segregation—both social (income) and land use (commercial vs. residential). Sprawl increases dependency on vehicles and distributes services inefficiently.

13.10 Sustainable Cities

Key Issue: What challenges do cities face?

  • Low-income populations in urban settings face multidimensional challenges, from job scarcity to inadequate services.

  • Gentrification processes in cities revitalize neighborhoods but may displace existing residents, presenting mixed impacts on urban settlements.