DESCRIPTION
This system includes all places for outdoor living, essentially all habitat for people outside of buildings.

SOCIAL FUNCTIONS
interaction, recreation, cultural expression, commerce, trust-building, social cohesion, acceptance/inclusion,

PERFORMANCE METRICS
The number and diversity of activities that people can enjoy outside--throw a frisbee, lunch with friends, garden, etc.; increase in social cohesion; increased sense of community; psychological development; adjacent property values; adjacent rents; connectivity; psychological well-being, lowering obesity, promotion of a more active and less sedentary population;

equality, diversity
violence reduction
education

CASE STUDIES: PLANNING AND POLICY

CASE STUDIES: HIGH PERFORMANCE LANDSCAPES

SOCIAL SYSTEM RESOURCES
The human-scale reawakening of America's urban parks, Seattle Times, Sept. 6, 2009
Active Design Guidelines from New York City