The Size and Distribution of Cities

Isabella Hernandez
7 min read
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Study Guide Overview
This study guide covers city size and distribution, focusing on the rank-size rule and primate cities. It explains how cities are arranged, why it matters, and key influencing factors. The guide details the rank-size rule, its formula, limitations, and the concept of primate cities with examples. Finally, it discusses the advantages and disadvantages of primate cities and provides practice questions.
#AP Human Geography: City Size and Distribution - The Night Before Review π
Hey there! Let's get you prepped for the exam with a super-focused review of city size and distribution. We'll make sure everything clicks, and you'll feel confident going in! Let's do this!
#Introduction to City Size and Distribution
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What it is: How cities are arranged in a region or country.
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Why it matters: Impacts infrastructure, economic development, and population trends.
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Key factors: Geography, transportation, economy, culture, and politics.
- Example: A hypothetical country:
- Metropolis: 10 million (center, economic/cultural/political hub)
- City A: 5 million (coast, major port)
- City B: 3 million (mountains, tourism)
- City C: 2 million (agricultural region, food processing)
- Example: A hypothetical country:
Understanding city size and distribution is crucial for planning and understanding regional dynamics.
#The Rank-Size Rule
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What it is: A pattern where a city's population is inversely proportional to its rank.
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In simple terms: The largest city is roughly twice the size of the second, three times the third, and so on.
- Formula: Population of nth city = (Population of largest city) / n
- Example: If the largest city has 1,000,000 people:
- 2nd largest: 1,000,000 / 2 = 500,000
- 3rd largest: 1,000,000 / 3 = 333,333
#How the Rank-Size Rule Works
- Visual Representation:
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Largest City: 1,000,000 (1,000,000 / 1)
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2nd Largest City: 500,000 (1,000,000 / 2)
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3rd Largest City: 333,333 (1,000,000 / 3)
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4th Largest City: 250,000 (1,000,000 / 4)
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5th Largest City: 200,000 (1,000,000 / 5)
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Another Example:
- Largest City: 200,000
- 2nd Largest: 100,000
- 3rd Largest: 66,666
- 4th Largest: 50,000
- 5th Largest: 40,000
- 6th Largest: 33,333
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Think of it like a pizza: the first slice is the biggest, then they get progressively smaller as you divide the pizza into more slices.
#Problems with the Rank-Size Rule
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Not always accurate:
- Based on a log-linear relationship that doesn't always hold.
- Ignores geography, infrastructure, and economic factors.
- Doesn't account for changes over time.
- Based on limited data, may not apply to all regions.
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Primate Cities: Some countries have a dominant city much larger than predicted by the rule.
- Example: In the U.S., New York City is a primate city, making Philadelphia smaller than expected.
Don't assume all countries follow the rank-size rule precisely. Deviations are common, especially with primate cities.
#Primate Cities
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What it is: The largest city in a country or region, significantly larger and more influential than others.
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Key Features: Economic, cultural, and political center with disproportionate influence.
- Example: Mexico City is a classic primate city.
- Largest city in Mexico, cultural, financial, and political center.
- Hub of transportation, communication, and trade.
- Example: Mexico City is a classic primate city.
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Other Examples:
- Tokyo, Japan
- London, United Kingdom
- Mumbai, India
- Cairo, Egypt
- Shanghai, China
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Regional Primate Cities: The dominant city in a region, even if not the national capital (e.g., Chicago in the Midwest).
#Advantages and Disadvantages of Primate Cities
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Chart Summary:
Source: Mr Tredinnickβs AP HuG Class Website
- Advantages:
- Economic dominance, job opportunities, economic growth.
- Cultural influence, artistic trends.
- Political importance, policy influence.
- Transportation hub, ease of movement.
- Disadvantages:
- Overcrowding, housing shortages.
- Traffic congestion.
- Social and economic inequality.
- Environmental issues (pollution, waste).
- Advantages:
When discussing primate cities, remember to analyze both their positive and negative impacts on the region.
#Final Exam Focus π―
- High-Priority Topics:
- Rank-size rule and its limitations
- Primate cities and their characteristics
- The impact of city size and distribution on development
- Common Question Types:
- Multiple-choice questions testing your understanding of the rank-size rule and primate cities.
- Free-response questions asking you to analyze the advantages and disadvantages of primate cities, or to apply the rank-size rule to a given scenario.
- Last-Minute Tips:
- Time Management: Quickly identify the core concept being asked in the question.
- Common Pitfalls: Don't confuse the rank-size rule with primate city concepts. They are related but distinct.
- Strategies: Use real-world examples to illustrate your points in FRQs.
Primate cities often have a disproportionate share of a country's resources and population.
#Practice Questions
Practice Question
#Multiple Choice Questions
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According to the rank-size rule, if the largest city in a country has a population of 10 million, the population of the third-largest city is most likely to be: (A) 1 million (B) 2 million (C) 3.3 million (D) 5 million (E) 6.6 million
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Which of the following best describes a primate city? (A) A city that is located near a major port (B) A city that is the political capital of a country (C) A city that is disproportionately larger and more dominant than other cities in the country (D) A city that is the center of agricultural production (E) A city that follows the rank-size rule
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A country with a primate city is most likely to experience: (A) An even distribution of resources and economic activity (B) A concentration of resources and economic activity in one major city (C) A lack of transportation infrastructure (D) A decrease in population growth (E) A high level of social equality
#Free Response Question
Prompt:
Explain the concept of the rank-size rule and discuss its limitations. Then, analyze the advantages and disadvantages of primate cities, providing specific examples to support your points.
Scoring Breakdown:
- Part A: Rank-Size Rule (3 points)
- 1 point: Correctly defines the rank-size rule (population is inversely proportional to rank).
- 1 point: Explains how the rule works (largest city is twice the size of the second, etc.).
- 1 point: Identifies a limitation of the rule (not always accurate, ignores factors).
- Part B: Primate Cities (4 points)
- 1 point: Correctly defines a primate city (disproportionately large and influential).
- 1 point: Discusses at least two advantages of primate cities (e.g., economic dominance, cultural influence).
- 1 point: Discusses at least two disadvantages of primate cities (e.g., overcrowding, inequality).
- 1 point: Provides at least one specific example of a primate city and its impact (e.g., Mexico City, London).
Alright, you've got this! Take a deep breath, review these notes, and go ace that exam! You're well-prepared and ready to rock! π
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