AP Human Geography Unit 6 Review!

Understanding Urban Land Use in AP Human Geography

Introduction to Site and Situation

• Coach Fishbein introduces the topic of urban land use, focusing on the concepts of site and situation within the context of San Diego.

• The climate of San Diego is highlighted as a significant site factor, with average temperatures ranging from 65°F to 77°F year-round, making it an attractive place to live.

• Low rainfall during summer months is noted as another favorable aspect for residents who prefer dry weather.

Key Site Factors

• Natural resources such as the Pacific Ocean and San Diego Bay are identified as critical site factors that influence urban development in San Diego.

• The concept of situation is introduced, emphasizing connections to nearby cities like Los Angeles and Tijuana, which shape San Diego's accessibility.

Changes Influencing Urbanization

• Transportation advancements (e.g., freeways, cars, airplanes) have historically transformed urban landscapes by promoting suburban sprawl away from city centers.

• Communication changes due to technology (like Zoom and Teams during the pandemic) may alter traditional work patterns in central business districts.

• Population changes driven by fertility rates and migration impact urban growth; local examples include protests against height limit increases in neighborhoods like Bay Park.

Mega Cities vs. Meta Cities

• The discussion shifts to mega cities—defined as cities with populations over 10 million—and their projected growth into meta cities (20 million+) by 2100.

• A visual representation shows how mega cities are shifting from developed regions (North America, Europe) towards developing countries by 2100.

Global Hierarchy of Cities

• Prominent global cities such as New York, London, Paris, and Tokyo are positioned at the top of a global hierarchy due to their cultural significance and connectivity.

• The interconnectedness fostered by globalization is emphasized; world cities play a crucial role in this process through economic and cultural exchanges.

Understanding Urbanization and Suburbanization in Society

The Role of World Cities

• World cities significantly influence societal functions, particularly through globalization and urbanization.

Characteristics of Suburbs

• East Lake is presented as a suburban neighborhood, characterized by winding roads, cul-de-sacs, single-family homes, and parks. It lacks a central business district or industrial presence.

• The process of suburbanization involves moving away from urban centers to suburbs for family living, facilitated by major freeways connecting back to the city core.

Impacts of Sprawl

• Suburban sprawl is evident in East Lake's expansion into undeveloped areas like mountains and canyons as development continues. This raises discussions about the pros and cons of such sprawl.

• Decentralization occurs as more people leave urban cores (like San Diego) for surrounding cities (e.g., Chula Vista, Escondido), leading to the emergence of edge cities.

Bid Rent Theory

• The bid rent theory illustrates land value distribution: land closest to the city center is most expensive due to demand from retail businesses that benefit from foot traffic. Further out are residential areas followed by rural zones.

• Understanding this theory is crucial for grasping urbanization patterns globally; it highlights why some individuals choose to live further from city centers despite higher costs closer in.

Edge Cities and Boom Burbs

• Edge cities like Chula Vista represent rapidly urbanizing areas on the outskirts of major cities, attracting families due to lower land costs and increasing amenities. Examples include Oceanside and Carlsbad.

• "Boom burbs" refer to fast-growing suburban areas like Chula Vista, while "exurbs" are wealthier suburban regions with more rural characteristics, exemplified by communities like Bonzel in North County San Diego. These areas offer larger properties at slower paces compared to traditional suburbs.

Rank Size Rule and Primate Cities

Understanding the Rank Size Rule

• The rank size rule suggests that in countries following this model, the largest city (e.g., São Paulo with 12.5 million people) is significantly larger than the second-largest city, which will be about half its size.

• This pattern continues down the line: the third-largest city will be one-third the size of the largest, and so forth. This can be observed in Brazil's urban structure.

Primate City Concept

• A primate city is defined as a single city that dominates all others in terms of size and influence within a country; Mexico City serves as an example with nearly 10 million residents compared to Tijuana's less than 3 million.

• The concept highlights significant disparities between cities within a nation, where one city overshadows all others in population and economic activity.

Gravity Model in Human Geography

Exploring Connections Between Cities

• The gravity model illustrates how major cities like New York City exert influence over smaller cities such as Lincoln, Nebraska, and Charlotte, North Carolina. Larger arrows represent stronger connections to New York due to various interactions (e.g., education trips).

• Conversely, connections between smaller cities are depicted with thinner arrows indicating weaker relationships; this reflects limited interaction or shared resources among them.

Central Place Theory

Hexagonal Structure of Urban Areas

• Central place theory utilizes hexagons to represent urban areas because they balance compactness (like circles) and nesting ability (like squares), making them ideal for geographic modeling.

• In this theory, central places attract people for specific amenities found only in larger cities (e.g., unique attractions or services available only downtown). San Diego exemplifies this with its distinct offerings like sports events at Petco Park or cultural sites like Balboa Park.

Service Distribution Based on Usage

• Different types of services are distributed based on their frequency of use; essential services like gas stations are more widespread compared to specialized ones located solely within urban centers. Gas stations might appear in smaller towns while unique attractions remain centralized in major cities.

City Models Overview

Burgess Concentric Zone Model

• The Burgess concentric zone model features concentric rings around a central business district (CBD), illustrating urban land use patterns from about a century ago but may not accurately reflect modern geographical realities due to physical barriers like oceans or mountains affecting layout.

Hoyt Sector Model

• The Hoyt sector model presents an alternative layout using wedges radiating from the CBD instead of rings; it was particularly relevant during early 20th-century urban development when streetcars were prevalent modes of transportation but may not apply well today given changes in transit methods and urban growth patterns.

Urban Models and Their Implications

Classical Urban Models

• The discussion begins with a critique of classical urban models, noting their limitations in accounting for modern transportation methods and urban geography.

• The Harris-Moore Multiple Nuclei Model is introduced, emphasizing the existence of multiple central business districts (CBDs) within cities rather than a single core.

• Examples from San Diego illustrate how various institutions like universities exist outside the traditional urban core, creating diverse nodes of activity.

Galactic City Model

• Pierce Lewis's Galactic City Model is highlighted, showcasing radial highways that connect different parts of a city, which is particularly relevant for cities with ample space.

• The model effectively explains urban areas that are landlocked or have limited connectivity due to geographical features like oceans or rivers.

International Urban Models

Latin American City Model

• This model features a "spine" that connects the CBD to better housing and industrial parks, indicating socio-economic segregation within cities.

Southeast Asian City Model

• It emphasizes port zones due to the geographical layout of Southeast Asia, where water bodies play a crucial role in urban development.

African City Model

• Highlights colonial influences on city planning, contrasting regimented colonial CBD layouts with more organic non-colonial structures. It suggests patterns of segregation among ethnic neighborhoods.

Urban Density and Infrastructure

Density Variations

• An image of downtown San Diego illustrates high-density living conditions in the urban core compared to medium-density suburban areas like Eastlake.

Infrastructure Necessities

• Infrastructure encompasses essential services such as utilities and emergency services; its management varies across cities based on local governance structures.

Sustainability Challenges

• Acknowledges the need for sustainable practices as urban populations grow significantly, stressing the importance of planning for sustainability in densely populated areas.

Urban Design and Sustainability

Key Concepts in Urban Sustainability

• Mixed Land Use: This approach combines retail spaces on the ground floor with housing above, promoting a more integrated community structure.

• Walkability: Emphasizing pedestrian-friendly environments reduces reliance on cars, contributing to environmental sustainability.

• Transportation-Oriented Development: Positioning essential services near transportation lines enhances accessibility and encourages public transit use, as illustrated by San Diego's potential improvements.

• Smart Growth Policies: These policies aim to optimize land use, such as creating elevated walkways that maximize space utility while reducing urban sprawl.

• Green Belts and Slow Growth Policies: Initiatives like London's green belt limit urban expansion, while cities like Boulder implement slow growth strategies to preserve natural landscapes.

Pros and Cons of Urban Design Initiatives

• Benefits of Good Urban Design: Effective initiatives can reduce urban sprawl and enhance livability by ensuring diverse housing options are available within close proximity to amenities.

• Challenges Faced: Popular urban areas may see increased housing costs, potentially displacing lower-income residents.

• De Facto Segregation Issues: Historical practices like redlining have led to segregation in neighborhoods, impacting community diversity and character negatively.

The Role of Data in Urban Planning

• Quantitative Data Utilization: Cities rely on quantitative data from sources like the census to inform decisions about land use—determining whether areas should be developed for housing or parks.

• Census Importance: The U.S. Census is conducted every ten years to gather demographic data crucial for planning; it includes efforts to reach hard-to-count populations effectively.

Discriminatory Housing Policies

• Redlining History: In the early 20th century, discriminatory lending practices marked minority neighborhoods red on maps, severely limiting access to home loans for these communities.

• Impact of Redlining on Inequality: This practice has had long-lasting negative effects on socioeconomic inequality across the United States today.

• Blockbusting Tactics: Real estate agents exploited racial fears by encouraging white homeowners to sell their properties under false pretenses about neighborhood demographics.

Urbanization and Housing Inequities

The Impact of White Flight and Blockbusting

• The phenomenon of white flight occurs as white populations move to suburbs, creating a demand imbalance in housing for African Americans. This is referred to as blockbusting.

• Negative consequences include inequitable access to resources, leading to segregated school districts and increased crime rates, alongside environmental impacts.

Environmental Inequities

• Areas with better loan opportunities (blue/green zones) are often elevated with good views, increasing home values, while red zones are low-lying and near industrial areas, resulting in poorer living conditions.

• Lack of land tenure can create disamenity zones, exemplified by favelas in Rio de Janeiro where infrastructure is neglected, forcing residents to create makeshift solutions for basic needs like power and water.

Urban Challenges: Abandonment and Slums

• Urban environments may develop into zones of abandonment, where areas become uninhabited due to neglect or economic decline; slums in Mumbai serve as an example of this issue.

Solutions Against Discriminatory Policies

Inclusionary Zoning Initiatives

• Strategies such as inclusionary zoning aim to make cities more inclusive for lower-income individuals who cannot afford expensive homes. Local food movements also empower communities by promoting the use of locally grown produce.

Urban Renewal Efforts

• Urban renewal projects seek to revitalize city centers, encouraging people to return by improving living conditions and amenities; however, these efforts can lead to gentrification that displaces existing residents. An example includes North Park in San Diego which has undergone significant changes over the decades but faces criticism for becoming too appealing for wealthier newcomers (yuppies).

Government Fragmentation Issues

• The fragmentation of government entities complicates urban problem-solving; different jurisdictions (state, county, city) manage various aspects like education and transportation independently, hindering cohesive action on urban issues.

Sustainability Challenges from Urbanization

Addressing Sprawl and Environmental Concerns

• As urban sprawl continues unchecked, it raises concerns about sustainability—issues like wildfires become more prevalent without proper planning or growth boundaries established by regional authorities (e.g., Boulder Colorado). Additionally, challenges related to sanitation, air quality, water quality, energy usage, and climate change must be addressed through collaborative governmental efforts. Remediation of brownfields is one approach aimed at restoring polluted areas for community use.

Farmland and Community Spaces

Importance of Green Areas

• The speaker emphasizes the significance of maintaining green belts and wild areas on farmland, highlighting their role in providing enjoyable spaces for the community.

• These green spaces are essential for enhancing the quality of life for residents, offering recreational opportunities and promoting environmental health.

Conclusion and Future Content

• The session wraps up with a note about the completion of Unit 6, marking it as a successful first attempt at this format.

• A reminder is given to viewers to like and subscribe, indicating that more content (Unit 7 video) will be available in a couple of weeks.

Engagement with Audience

Social Media Interaction

• The speaker invites followers to connect on social media platforms such as Instagram (@coachfish_) and Twitter (@coachfishunderscore).

Exam Preparation Support

• Viewers are encouraged to send questions regarding review topics as exams approach, demonstrating an interactive approach to learning.

• Specific exam dates are mentioned: May 28th for some students, while others have exams scheduled for June 8th or June 10th.