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Passive survivability refers to the building's ability to maintain critical life-support conditions in the event of extended loss of power, heating fuel, or water.〔"Passive Survivability." NJ Green Building Manual. 28 Apr. 2011. Web. 3 Dec. 2014. The term was coined by BuildingGreen President and EBN Executive editor Alex Wilson in 2005 after the wake of Hurricane Katrina.〔Quinion, Michael. "World Wide Words: Passive Survivability." World Wide Words. 5 Aug. 2003. Web. 2 Dec. 2014. ==Problems== In much of the urban world with populated cities and residential areas, there is a heavy reliance on a grid for power and gas. These grids are the hub of energy for many of these societies and while they generally do not get interrupted, they are constantly prone to elements which may cause disruption. These potential hindrances can occur from a multitude of conditions ranging from natural disasters, extreme climates, and acts of man. Passive survivability aims to be prepared for when such an event may occur. One of the issues that passive survivability looks at is how to increase ventilation flow throughout a building so that a building can stay oxygenated while keeping the interior temperature regulated. Another is considering the many ways to keep thermal resistance of a building skin to prevent a room from becoming overbearing in the event of having a lack of access to standard temperature regulating systems. Key sources such as power lines, telephone lines, water pipelines, electricity boxes, or fuel pipelines, are potentially fragile components that can be and is often disrupted during such adversities as earthquakes, storms, and extreme weather. Other factors to be mindful of when applying passive survivability are:〔Wilson, Alex. "Passive Survivability." Building Green. Efficiency Vermont, 8 Feb. 2008. Web. 3 Dec. 2014. *Intense earthquakes *Intense storms *Flooding *Extreme temperature *Drought *Risk of terrorism *Blackouts or shortage of electricity *Shortage or cutoff of fuel *Shortage of water 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Passive survivability」の詳細全文を読む スポンサード リンク
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