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The term urban sprawl is generally used with negative connotations. Because people in sprawling neighborhoods tend to drive more than those who don’t, urban sprawl is sometimes associated with increased air pollution. It has also been linked to obesity since walking or bicycling usually are not viable commuting options for those commuting from the outskirts of a city into town.

Traditional cities, like many small and mid-sized cities in modern-day Europe, were typically oriented in a compact and efficient way. Preferences of many people, especially in the United States, have led suburban development — accommodating for to the development in an outward instead of upward manner. Developments such as shopping malls, fast food chains, strip malls, and housing subdivisions are especially typical of urban sprawl. Subdivisions are often cited as primary examples of a less efficient use of space that characterizes sprawl. These layouts often only have a few places to enter and exit, causing main roads to have more traffic at these points.
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