Editing Urban structure (section)

==Zonal model==
{{main|Concentric ring model}}

This model was the first to explain distribution of social groups within urban areas. Based on one single city, [[Chicago]], it was created by sociologist [[Ernest Burgess]]<ref>Burgess E.W. (1924)"The growth of the city: an introduction to a research project" Publications of the American Sociological Society, 18:85-97</ref> in 1924. According to this model, a [[city]] grows outward from a central point in a series of [[concentric]] rings. The innermost ring represents the [[central business district]]. It is surrounded by a second ring, the zone of transition, which contains industry and poorer-quality housing.  The third ring contains housing for the working-class and is called the zone of independent workers' homes.  The fourth ring has newer and larger houses usually occupied by the [[middle-class]]. This ring is called the zone of better residences. The outermost ring is called the [[commuter]]'s zone. This zone represents people who choose to live in residential [[suburb]]s and take a daily commute into the CBD to work.