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land area that is urban
8%
median age
37.2
urbanized area
urban nucleus of 50,000 people and 1,000 people/sq mi. may contain adjoining area with 500 people/sq mi.
urban cluster
2,500 - 50,000 people and 1,000 people/sq mi
metropolitan statistical area
at least one city with 50,000, or urbanized area with metro population of 100,000
cencus tract
smallest area at which census information is released 2,000 - 8,000, averages 4,000
censu block
part of a census tract, smallest level at which census data is collected, 400 housing units per block
how much reservation land is held in trust? Where is most of it located?
56.2M acres, 40M in Alaska
what is the largest single reservation land?
navajo, 16M acres, in Arizona Utah and New Mexico
what percent of waterways are considered impaired?
40%
what are the 6 pollutants regulated by the clean air act?
nitrogen oxide, carbon monoxide, lead, sulfur dioxide, ozone and particulates. NOT carbon dioxide or nitrogen dioxide.
how many ft in an acre?`
43,560
how many ft in a mile?
5,280
where was first zoning ordinacne
LA, 1908
where was the first CITY WIDE zoning ordinance?
NYC, 1916
where was the first urban growth boundary?
Lexington KY, 1958
what is cocentric ring theory and who proposed it?
Ernest Burgess, 1925, urban areas grow outward in coecentric rings