Zone of transition is the area between the factory zone and the working-class zone in the concentric zone model of urban structure devised by Ernest Burgess. The zone of transition is an area of flux where the land use is changing.

The first model is called the concentric zone model, which states that cities have the ability to develop in five concentric rings. The inner zone of the cities tends to be the CBD, followed by a second ring that tends to the zone of transition between the first and third rings.

What prediction do the sector model and the concentric zone model make about a city’s central business district (CBD)? The CBD will have a relatively high proportion of residents to workers. The CBD will retain a core of high-income workers throughout the life of the city.

The Concentric zone model, or Burgess model is a model to explain how a settlement, such as a city, will grow. It was developed by Ernest W. Burgess between 1925 and 1929.

Concentric zone theory is the principle that states cities tend to grow in concentric rings around their core. The highest values and intensive uses occur at its core while values and intensity decreases moving outward.

Concentric Circles Meaning The circles with a common center point are known as concentric circles. In other words. It is defined as two or more circles that have the same center point. The region between two concentric circles are of different radii is known as an annulus.

city of Chicago

six concentric zones

A Multiple-Nuclei Model city is 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 city. Los Angeles, with its many distinct neighborhoods, is a prototypical example of this type of city.

A representation of urban structure based on the idea that the functional areas of cities develop around various points rather than just one in the central business district. Some of these nuclei are pre-existing settlements, others arise from urbanization and external economies.

The Model. The model describes the layout of a city, based on Chicago. It says that even though a city may have begun with a central business district, or CBD, other smaller CBDs develop on the outskirts of the city near the more valuable housing areas to allow shorter commutes from the outskirts of the city.

Juntas are widespread in Latin American countries. Of the 91 squatter settlements which have been studied in 11 different countries, 61 has juntas. Participation of household heads in the juntas ranges from 10-70%. Most squatter invasions are planned or spontaneous radical political action.

Squatter settlements are most often formed by rises in the numbers of homeless people. Some of the buildings may still have power and water, which causes the homeless to flock to the “free” resources. Additionally, squatters congregate in settlements to protect each other from those who prey on the homeless.

Characteristics of squatter settlements

• houses built from dried mud as the walls and corrugated iron for the roof.
• no toilets.
• no electricity between phone lines.
• no running water, sewage or electricity in homes.
• no paved roads or sewers.
• little space between houses.
• no infrastructure.
• extremely high density’s.

three consequences of rapid squatter settlements are: increased unemployment, pollution to the environment, and a negative aspect of a country’s reputation. All who live in squatter settlements are unemployed.

• Environmental. Poor Sanitation. No Electricity. Dark and dank. Unhygienic. Open Sewers. Living on Pavements. No Toilets. Cramped Conditions. Disease.
• Economic. Informal Jobs. Basic Infrastructure. Crime. Poverty. Large families to feed. Poorly Paid Work.
• Social. Lack of Privacy. No Formal Education. Insecurity. Crime.

According to UN Expert Group, slum has been defined as an area that combines various features, including inadequate access to safe water, inadequate access to sanitation and other infrastructure, poor structural quality of housing; overcrowding and insecure residential status.

(Entry 1 of 2) : a densely populated usually urban area marked by crowding, run-down housing, poverty, and social disorganization.