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The first 30 feet (9 m) is the "Defensible Space Zone," of a defensible space around a structure. It is where vegetation is kept to a minimum combustible mass. A guideline used in this zone can be "low, lean and green." Trees should be kept to a minimum of 10 feet (3 m) from other trees to reduce risk of fire spread between trees.
To be eligible for a membership in the FireWise Communities Program, a community must verify susceptibility to wildfire by acquiring a wildfire risk assessment from the local fire department or forest service. Then, the community must form a firewise committee and action plan as well as contribute two dollars per capita toward firewise activities.
Fire Adapted Communities logo. A fire-adapted community is defined by the United States Forest Service as "a knowledgeable and engaged community in which the awareness and actions of residents regarding infrastructure, buildings, landscaping, and the surrounding ecosystem lessens the need for extensive protection actions and enables the community to safely accept fire as a part of the ...
Fire safe councils are grassroots community-based organizations in California that share the objective of making communities less vulnerable to catastrophic wildfire.Fire safe councils accomplish this objective through education programs and projects such as shaded fuel breaks or firebreaks to protect area residents against an oncoming wildfire and to provide firefighters with a place to fight ...
Defensible space may refer to: Defensible space theory , a concept of influencing negative social behavior through architectural and urban design Defensible space (fire control) , referring to planning methods for prevention and control of fires
As defined in Newman's book Design Guidelines for Creating Defensible Space (1972), defensible space is "a residential environment whose physical characteristics—building layout and site plan—function to allow inhabitants themselves to become key agents in ensuring their security."
Defensible space design tools were observed to be marginally effective in institutional and commercial settings. As a result, Newman and others moved to improve defensible space, adding CPTED-based features. They also deemphasized less effective aspects of defensible space. Contributions to the advance of CPTED in the 1980s included:
The impeller pumps water from the first few feet of the water and expels it into the air. [4] This process utilizes air-water contact to transfer oxygen. As the water is propelled into the air, it breaks into small droplets. Collectively, these small droplets have a large surface area through which oxygen can be transferred. Upon return, these ...