Affordable Housing
Housing units that are affordable by the section of society whose income is below the median household income.
African city model
A generalized diagram of an urban area that contains precolonial, European colonial, and post colonial elements or is or was segregated by race.
Auto-Centered city
With the rapid growth of vehicle use, cities developed automobile access. effects include shopping centers near highways, decline in the Central business district, and fewer downtown areas period
Borchert's epoch of urban growth
refer to five distinct periods in the history of American urbanization and are also known as Borchert's model of urban evolution. Each epoch is characterized by the impact of a particular transport technology on the creation and differential rates of growth of American cities.
Brownfield
Abandoned or underused industrial or commercial properties that may pose a threat to human health and the environment.
Central business district.(CBD)
is the commercial and business center of a city. It contains commercial space and offices, and in larger cities will often be described as a financial district.
Central place theory.(christaller)
in any given region there can only be one large central city which is surrounded by a series of smaller cities, towns, and hamlets
Concentric zone model.(Burgess)
This model proposes that cities grow outward from a Central business district or CBD and a series of concentric circles, with the most densely populated and develop areas located at the center, and the least densely populated in developed areas located on the outskirts.
Deed restrictions.
A statement written into a property deed that restricts the use of the land in some way
Edge city.
large-scale, self-sufficient suburban centers that have developed at major suburban freeway interchanges and that possess all the characteristics of traditional downtowns.
Galactic city model.
The model is based on the city of Detroit, Michigan and is made up of an inner city, with large suburban residential and business areas surrounding it.
Gated communities.
Gated communities are housing developments that are fenced off and monitored for security. They often have controlled entrances for pedestrians, bicycles, and automobiles.
Gentrification.
the process by which an urban or suburban neighborhood transitions from housing people of mostly low-income status to housing middle class families
Gravity model.
holds that the interaction between two places can be determined by the product of the population of both places, divided by the square of their distance from one another.
Greenbelts
a designated area of land around a city or urban area that is protected from development in order to preserve open space, reduce urban sprawl , and promote sustainable land use.
Latin America urban model.
model that describes the layout and organization of cities. It consists of three main sectors - the elite/wealthy sector, the middle-class sector, and the informal settlements/poverty sector.
Law of the primate city.
the population is at least double that of the second largest city in a country.
Megalopolis.
a very large, heavily populated city or urban complex; total population exceeds ten million,
Mixed used areas
combines residential, commercial, cultural, or institutional functions into a building, block, or neighborhood.
Multiple nuclei model.(Harris-Ullman)
a city that does not have one central area, but instead has several nodes that act as regional centers for economic or residential activity within one larger
New urbanism.
a planning and development approach based on the principles of how cities and towns had been built for the last several centuries: walkable blocks and streets, housing and shopping in close proximity, and accessible public spaces.
Organic city.
A city that is loosely planned, often featuring streets of warrioride with the might resemble labyrinth. many medieval cities were like this, as modern cities such as Boston grew as city spread.
Planned city.
Cities laid out along more symbolic lines, often rich with symbolic elements, such as cosmological principles. Organized layout; grid system
Prime value intersection(PVI)
the central point of a city with the highest amount of access
Range.
the maximum distance people are willing to travel to get a product or service.
Rank size rule.
A principle that says that the rank of a city's population within a country will be approximately the largest city's population divided by the rank of the city in question.
Red lining.
a discriminatory practice in which financial institutions and other organizations deny or limit financial services, insurance, or other resources to residents of certain areas, typically because those areas are predominantly inhabited by racial or ethnic minorities.
Sector model.(Hoyt)
describes the growth of US cities based on economic and physical geography
Small growth policies/cities.
urban planning strategies that promote sustainable and balanced development, focusing on compact, mixed-use communities with accessible transportation options.
Sub, urbanization.
the growth of cities outside of an urban area.
threshold.
the minimum number of people needed for a business to operate.
Urban sprawl.
the rapid expansion of the geographic extent of cities and towns, often characterized by low-density residential housing, single-use zoning, and increased reliance on the private automobile for transportation.
Walkable city.
Cities shaped by the distances people can walk
White flight.
the phenomenon of white people moving out of urban neighborhoods that are becoming racially or ethnically diverse, often to suburban areas.
World city.
an urban center that is a major player in the global economy and is connected to a network of other global cities through economic, cultural, and political
Zones of abandonment.
The lack of jobs, big declines in land value and falling demand can cause properties to become abandoned, extending even to entire neighborhoods