The neighborhood, the district, and the corridor are the essential elements of development and redevelopment in the metropolis.

Neighborhoods should be compact, pedestrian-friendly, and mixed-use. Districts generally emphasize a special single use, and should follow the principles of neighborhood design when possible. Corridors are regional connectors of neighborhoods and districts; they range from boulevards and rail lines to rivers and parkways.

Many activities of daily living should occur within walking distance, allowing independence to those who do not drive, especially the elderly and the young.

Within neighborhoods, a broad range of housing types and price levels can bring people of diverse ages, races, and incomes into daily interaction, strengthening the personal and civic bonds essential to an authentic community.

Transit corridors can help organize metropolitan structure and revitalize urban centers, when properly planned and coordinated. In contrast, highway corridors should not displace investment from existing centers.

Appropriate building densities and land uses should be within walking distance of transit stops, permitting public transit to become a viable alternative to the automobile.

Concentrations of civic, institutional, and commercial activity should be embedded in neighborhoods and districts, not isolated in remote single-use complexes.

The economic health and harmonious evolution of neighborhoods, districts, and corridors can be improved through graphic urban design codes that serve as predictable guides for change.

A range of parks should be distributed within neighborhoods, from tot lots and village greens to ballfields and community gardens.