Title: Urban Sprawl in North America: Where Will It End
1Urban Sprawl in North America Where Will It End?
2I. Geoterms
- A. Metropolitan Area a major population center
made up of a large city and the smaller suburbs
and towns that surround it. - B. Rural Fringe the small towns, farms, and open
spaces that lie just beyond a citys suburbs. - C. Suburb a developed area at the edge of a city
that is mainly homes. Many suburbs also have
stores and businesses.
3- D. Urban Core the older part of a big city.
Often the urban core serves as the downtown or
central business district of a city. - E. Urban Fringe the ring of small towns and
suburbs that surround a big city. - F. Urban Sprawl the rapid, often poorly planned
spread of development from an urban area outward
into rural areas.
4II. The Geographic Setting
- A. The Old Walking City The Urban Core
- 1. Urban Core started during colonial times. This
is the heart of the town (Downtown) where people
could walk from their home to businesses. - 2. 1890s, street cars and trains were developed
and people began to live further away and commute
into the city. People moved outward along rail
lines.
5- B. Suburbs Around the City The Urban Fringe
- 1. 1920s, cars were using paved roads so people
didnt have to live along rail lines. - 2. Common use of cars allowed housing farther
away from the urban core. Suburbs ringed cities
forming an urban fringe. - 3. Old city cores decayed as people and
businesses moved out and started new town centers.
6- C. Where City Meets Country The Rural Fringe
- 1. Rural Fringe is where there are farms, open
space, and fewer people. - 2. These areas grow and urban sprawl begins.
7III. The Case for and Against Urban Growth
- A. Urban Growth Creates Needed Homes
- 1. Rural land is cheaper and building homes here
is less expensive - 2. People usually believe it is better to raise a
family in the suburbs - 3. New construction creates jobs. New homes
require purchases. - 4. More taxes are paid to the government for the
infrastructure.
8- B. Urban Sprawl Damages the Environment
- 1. New homes take away animal and plant habitat
- 2. Urban sprawl creates pollution from more cars
and waste
9IV. Portland, Oregon, 1973
- A. Growth Threatens the Willamette Valley
- 1. Willamette Valley known for roses, farms, and
orchards - 2. Portlands growing population and urban sprawl
would destroy this environment.
10- B. Difficult Decision How Best to Grow?
- 1. The state looked at several options. One
option was to allow urban growth to continue, but
for each acre developed, the state would require
that another acre be set aside to be preserved as
open space - 2. A second option was to not allow any more
building to go on - 3. A third option allowed growth, just not in the
Willamette Valley
11V. Portland Plans for Smart Growth
- A. Urban Growth Boundaries Limit Sprawl
- 1. Urban Growth Boundaries
- A. A legal border that separates urban land from
rural land - B. Growth is allowed in the borders, but not in
the rural area - 2. Metro was developed as a regional government
to plan the growth within the boundaries.
12- B. Mixed Use Helps Portland to Grow Up, Not Out
- 1. Today, Portland is a compact,
controlled-growth area - 2. Public transit system (buses, streetcars)
reduce the need to drive - 3. Mixed-use developments allow for mixed housing
and business (apartments above a store) - 4. Advocates of the program say people drive
less, thus less pollution - 5. Opponents say people cannot find large homes
on big lots, thus not meeting the desires of the
people
13VI. Toronto, Ontario, 1999
- A. Building Up and Filling In Limits Sprawl
- 1. Toronto has a long history, so by 1960s, the
urban core was run down - 2. 1965, Toronto started Infill where old urban
core is rebuilt and empty space is filled in
instead of sprawling out. - 3. By the 1970s, Toronto rebuilt itself into a
modern city
14- B. Rapid Growth on Torontos Rural Fringe
- 1. By 1990s, urban sprawl took over farmland,
forests, and wetlands. - 2. Traffic increased and so did the pollution
- 3. They considered various plans (mixed-use
development, ban all growth in rural areas, limit
growth only to certain areas)
15VII. Toronto Plans for 30 Years of Growth
- A. Planning for Future Growth
- 1. The Official Plan allowed growth in 25 of the
city - 2. It allowed growth in the old urban core and on
the waterfront. - 3. Public transportation was to be expanded
- 4. Mixed-use and infill were to be developed
16- B. Concerns About Infill
- 1. Developers said it was too costly because they
had to clean up the old before building new. - 2. Current residents of the urban core felt that
it would become too crowded
17VIII. Atlanta, Georgia, 1998
- A. Rapid Growth Leads to Traffic Jams
- 1. 1990s, Atlanta metropolitan area led the USA
in urban sprawl - 2. Animal and plant habitat was being destroyed
- 3. Residents drove more miles every day than
drivers anywhere else in the world
18- B. Air Pollution Threatens Highway Funds
- 1. Air pollution increased
- 2. Respiratory ailments increased
- 3. Atlanta violated the federal Clean Air Act and
was in jeopardy of losing federal highway funds. - 4. Various options were studied
19IX. Atlanta Fights Pollution with Public Transit
- A. A Regional Transportation Authority was
created - 1. Focus was on public transit
- 2. Three goals were stressed
- A. Reduce traffic jams
- B. Reduce the amount of air pollution from cars
- C. Reduce poorly planned development
20- 3. They encouraged people to get out of their
cars - A. Encourage people to walk to shops and jobs
- B. Encourage people to walk or bike through new
bike trails and walking paths - C. Built new rails, subways, and bus lines
21- B. Atlanta Continues to Grow
- 1. Atlanta now meets federal air-quality
standards - 2. Urban sprawl still occurring
- 3. Pollution still a problem
- 4. Water supply a concern
- 5. Mixed-use development taking place
- 6. New homes in rural areas still being built
22X. Beginning to Think Globally
- A. Cities Continue to Sprawl
- 1. USA and Canada still growing
- 2. Need for housing still growing
- 3. Concerns for the environment still present
- B. Sprawl is a Worldwide Problem
- 1. More people moving to cities, needing housing
- 2. Mumbai is good example
23XI. Global Connection
- A. Why might some regions have more metropolitan
areas than others? - B. Why are there so many cities with more than 5
million people in Asia? - C. What special problems might urban sprawl
create for poor countries?