DRQ 5 Land use and movement in a South American city

(a) The model seems to be a combination of the wedge and ring model. The ring like structure can be seen developing from the CBD, followed by a ring of mixed zones (transition zone?) Beyond that however, the rings are not concentric but rather are divided into sectors and have similar characteristics to the wedge zones that have developed. It fact it is more likely that the wedges were developed from the rings, extending to a particular direction depending on local factors. This is especially evident from the development of the CBD towards the residential sector occupied by the upper class. The development of the industrial sector is also identical to the Sector model, probably related to some form of transport route that lead to the growth of industries. The model has elements of the Multi-nuclei model if we consider the development of municipal housing zones and favelas as growth poles which may expand into residential zones.

(b) The South American city is expanding since more people are moving to it than are moving away. Movements to the city are largely of poor rural labours, who locate in shanties (favelas) or illegal inner city slums. These poorer areas are therefore expanding within the city, taking over pockets of previously higher-class residence.
The former occupants of these sectors are moving out to better sites in the upper class housing zone of greatest affluence as it expands outwards. Municipal developments are being located on the outer edge of the city to siphon off some of the poorer immigrants and to absorb some of the longer standing poor inhabitants of the city as they look to improve themselves.
However the fastest growing zone must be the Favelas which are absorbing both the new migrants from the rural regions as well as the poor from the city centre. Even some inhabitants of the municipal housing are relocated in favelas.
Distinct zone of newer lower/ middle class housing can be seen developing along with the growth of the industrial zone. Such newer housing zones growth both from the older lower/ middle class zone as well as from newer migrants from the rural areas.
The upper class sector is expanding westward, pulling along the CBD with it. The immigration of the rich from other regions further enhances the segregation between the rich and the lower class.