1. Accessibility Geography
Principle 1: To what extent is life in a specific location influenced by accessibility?

2. UEQ: How can mapped data be used to identify and analyze geographic patterns?
LEQ: To what extent is life in a specific location influenced by accessibility?
SWBAT: Apply the idea of accessibility to solve societal and location problems

3. What makes Fairbanks remote?

4. Places that are:
Remote
Not Remote
WHY?
WHY?

5. What are the two factors that influence the accessibility value of a given location?
The overall distribution of population
The nature of the transportation system available to that population

6. What location in the U.S. has the highest accessibility value?

7. Explain why the NY metropolitan area has the highest accessibility value in the U.S.
Consider…
I think…
The answer is…
The overall distribution of population:
The nature of the Transportation system available to the population:
So what is the expense (time and cost)?

8. Overall Distribution of Population

9. Nature of the Transportation System: Train

10. Nature of Transportation System: Air

11. Nature of Transportation System: Road

12. Explain why the NY metropolitan area have the highest accessibility value in the U.S.
The overall distribution of population:
The nature of the transportation system available to the population:
What is the expense (time & cost)?

13. Explain why the NY metropolitan area have the highest accessibility value in the U.S.
The overall distribution of population:
New York is not the center of the country, but the U.S. population is not evenly distributed
The nature of the transportation system available to the population:
New York has the best combination of road, rail, and aviation transportation to reach people where they are found.
So what is the expense (time & cost)?
If we added up the expense in time and cost of reaching every person in the U.S. from NY, the total would be lower than doing the same for any other location in the country

14. Rank the Accessibility Value!
Place
A.V.
Rank
Reasons (What is its population distribution? Transportation available?)
Philadelphia
Wilmington
Dover
Rehoboth

15. What real world decisions does accessibility value affect?
Producers:
Where will I locate my business/organization?
Consumers:
Where will I choose to live?

16. What is the relationship between the principle of accessibility and settlement size?
Places with high accessibility values attract a range of businesses and services that cannot survive without access to large numbers of people
High accessibility places will always be larger than those with poorer access
Low Accessibility
High Accessibility

17. What types of businesses are likely to choose locations with high accessibility values? Low accessibility values?
Businesses that need to reach many people
Businesses that do not need many people
Likely to choose locations with high accessibility values
Likely to choose locations with low accessibility values

19. Using the Principle of Accessibility, explain why developers built the Christiana Mall here.

20. Do Now: Use the following pictures to explain how the principle of accessibility relates to settlement size. (Use specific evidence from the pictures)
Transportation systems such as roads, trains, airplanes, etc. and population distribution (nearby homes) give this city a high accessibility value.
The two pictures demonstrate the relationship between accessibility and settlement size. Businesses are attracted to locations with a high accessibility value because they need many people to survive. We see this in the second picture because there are many businesses and many people. The city has a high accessibility value, so the settlement size is large. In picture 1, there are no transportation systems available, and the population is very low. It has a low accessibility value. The low accessibility value means that this settlement will be small. Businesses will not want to locate there because they will not have access to large numbers of people.

21. List activities you live close to:
List activities you wish you lived close to:

22. How does accessibility value affect where people choose to live?
People’s choice of residence often involves an accessibility trade-off between competing activities.

23. What can a population map tell us about the tradeoffs people make when they decide where to live?
Each person makes accessibility choices and a map of population can also be seen as a map of those choices

24. Why did they choose to live there?
High Population Density Area:
Low Population Density Area:

25. Can Accessibility Values Change?
Yes! Places are always in competition with one another, trying to grow by improving their accessibility.

26. Before the Big Apple…
In 1790, Philadelphia was the country’s largest and most accessible city

27. Things began to change…
Population distribution began to change as more settlements opened up in the west
The pattern of transportation was altered with the building of the Erie Canal

28. The Effect…
NY’s accessibility to the growing settlements west of the Appalachians in the Ohio River valley was enhanced and the city overtook Philadelphia in size

29. Group Activity: (Win a Kiss!)
Teacher assigned groups of 4-5 students
Materials: Chart paper, Markers, Pencils, Post-it Notes
Directions:
1. Record names on back of poster
2. Copy down the chart & fill in the first 2 columns (15 minutes)
3. Trade posters with another group, fill out column 3 (7 minutes)
4. Trade back posters. Complete column 4. (7 minutes)
5. Post your group’s chart on the wall

30. Group Chart: If you were the mayor of Middletown, how would you improve its accessibility value?
Recommended Action:
Explain: How would this improve the city’s accessibility value?
Visitors’ Comments and Questions
Group Response:

31. If you were the mayor of Middletown, how would you improve its accessibility value?

32. To what extent is life in a specific location influenced by accessibility?
All locations have an accessibility value
For Example:
Businesses/organizations choose locations that will reach as many people as possible with the lowest cost
Consumers like to be as close as possible to the things they want
This involves trade-offs because not all of these wants are in the same place