How could smart growth and "new urbanism" result in the creation of walkable neighborhoods?

- 'Homes, businesses, schools, and other amenities would be placed close enough together so people could walk to them.'

Explanation:

Smart growth and 'new urbanism' are the two concepts that are interrelated to each other and demonstrated as the idea or concept that outlines or promotes a planned economic urban development plan that primarily focuses on restraining the sprawls (urban) and the deteriorating condition of environment by providing compact and combined walkable neighborhoods.

Such a developmental approach focuses on revitalizing the urban life by offering homes, shopping complexes, businesses, and other amenities in a close proximity so people would be able to walk to them that would assist in reducing the inflicting negative effects on health and environment.