– When the spread of development outpaces population growth.
– Began with land developments after World War II.
- – Creates four conditions:
- • Population widely dispersed in low density developments.
- • Rigidly separated homes, shops, and workplaces.
- • A network of roads marked by huge blocks and poor access.
- • A lack of well-‐defined activity centers, such as downtowns or town centers.
Commuting • On average, an American worker’s daily commute is about 24 minutes (one-‐way commute time).
• As sprawl increases, so do the number of miles traveled, number of vehicles owned per household, traffic fatality rates, air pollution , and eventually, our risk of asthma, obesity, and poor health.