Wednesday, September 23, 2009

Environmental Sustainability
















NOT SUSTAINABLE:
Consumption of renewable resources: More than nature’s ability to replenish
State of the environment: Environmental degradation

STEADY-STATE ECONOMY:
Consumption of renewable resources: Equal to nature’s ability to replenish
State of the environment: Environmental equilibrium

SUSTAINABLE DEVELOPMENT:
Consumption of renewable resources: Less than nature’s ability to replenish
State of the environment: Environmental renewal

Land development projects are being promoted by using the following design approaches. These programs may stand alone but are only not sustainable if social and economic factors are incorporated in the project design program.


LID Low Impact Development
“Low Impact Development is an approach to land development that uses various land planning, design practices, and technologies to simultaneously conserve and protect natural resource systems and reduce infrastructure costs.”
Low cost landscape feature located at the lot level --- “Integrated Management Practices”

The LID approach includes five basic tools:
• encourage conservation measures by increasing open space areas & saving natural vegetation
• promote impact minimization techniques such as impervious surface reduction by reducing street widths for residential applications
• provide for strategic runoff timing by slowing flow using the landscape by implementing cluster zoning provisions
• use an array of integrated management practices to reduce and cleanse runoff by using best management practices
• advocate pollution prevention measures to reduce the introduction of pollutants to the environment


LEED: Leadership in Energy and Environmental Design - What is LEED for Neighborhood Development?
LEED for Neighborhood Development is a rating system that integrates the principles of smart growth, new urbanism, and green building into the first national standard for neighborhood design. It is being developed by US Green Building Council (USGBC) in partnership with the Congress for the New Urbanism (CNU) and the Natural Resources Defense Council (NRDC). LEED was created to accomplish the following:
• Define “green building” by establishing a common standard of measurement
• Promote integrated, whole-building design practices
• Recognize environmental leadership in the building industry
• Stimulate green competition
• Raise consumer awareness of green building benefits
• Transform the building market

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