New Urbanism is an urban design movement, which promotes walkable neighborhoods that
contain a range of housing and job types. It arose in the United States in the early 1980s and
continues to reform many aspects of real estate development and urban planning.
From Wikipedia
Rosengarten Park
Check out this Very Entertaining Video on New Urbanism
(and why we should fear cul-de-sacs)
Another interesting video
on the subject -
This goes into some
more detail about a
number of larger new
urbanism projects.  
About New Urbanism
Neighborhood Restoration Project
The Charter for New Urbanism
states that neighborhoods should be
diverse in use and population;
communities should be designed for the
pedestrian and transit as well as the car;
cities and towns should be shaped by
physically defined and universally
accessible public spaces and
community institutions; urban places
should be framed by architecture and
landscape design that celebrate local
history, climate, ecology, and building