# Urban sprawl

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Category: Education

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## Presentation Transcript

### Urban sprawl:

Urban sprawl Topic 10

### Urban sprawl:

Urban sprawl Extension of the city As population increases in towns and cities, URBAN SPRAWL takes place this happens in both MEDC’s and LEDC’s , the causes are different but the outcome is similar.

### Urban sprawl in MEDCs:

Urban sprawl in MEDCs Urban sprawl is planned. The building of houses and services on the edge of existing towns and cities is planned. If the decision is made to expand into the countryside then the urban sprawl will happen in an organized way.

### Urban sprawl in LEDCs:

Urban sprawl in LEDCs Often unplanned. The urbanization of the cities in LEDCs has been so rapid that planners rarely have time to organize and build the infrastructure to cope with the newcomers. This means that many unplanned squatter settlements develop around the edge of the city w/o permission from the authorities.

### Map scale:

Map scale A map represents a portion of the earth's surface. Since an accurate map represents the land, each map has a "scale" which indicates the relationship between a certain distance on the map and the distance on the ground. The map scale is usually located in the legend box of a map, which explains the symbols and provides other important information about the map. A map scale can be printed in a variety of ways.

### PowerPoint Presentation:

A  ratio or representative fraction (RF)  indicates how many units on the earth's surface is equal to one unit on the map. It can be expressed as 1/100,000 or 1:100,000. In this example, one centimeter on the map equals 100,000 centimeters (1 kilometer) on the earth. It also means that one inch on the map is equal to 100,000 inches on the land (8,333 feet, 4 inches or about 1.6 miles). Or even 1 paperclip on the map is equal to 100,000 paperclips on the ground. Other common RFs include 1:63,360 (1 inch to 1 mile) and 1:1,000,000 (1 cm to 10 km).

### PowerPoint Presentation:

Note also that if a piece of land, say a large park, is described as five kilometres square, that means it has the shape of a square, each side of the square being five kilometres long. This means that the park has an area of twenty-five square kilometres (and not five square kilometres).

### Urban sprawl in Atlanta:

Urban sprawl in Atlanta Atlanta is the capital city of Georgia state. Its population has grown from 1.4 million in 1970 to a figure of 5138000 in the US 2006 census. Between 2000 and 2006 Atlanta added almost 1 million residents to its total- fastest- growing metropolitan city in the USA. One- third of the increase was births, the rest from newcomers . Inevitably this growth, over 40 years, has resulted in urban sprawl

### Growth creates problems:

Growth creates problems population growth Traffic congestion Air quality Water quality and quantity Agricultural land Loss of green space / ecosystems Impermeable surfaces Cultural loss Socio-economic division Hotlanta