What strategy is acceptable by LEED for reducing heat islands?

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试卷: LEED GA模拟题C[查看]
What strategy is acceptable by LEED for reducing heat islands?
A: Providing shade from tree canopies to open space areas
B: Locate the project in a non-dense area
C: Install no more parking than is required by local code
D: Install an open-grid pavement system

参考答案: D

本题解释:
Notes:

Reference: LEED 2009 for New Construction and Major Renovations Rating System
Hardscapes shaded by trees are a strategy to reduce the heat island effect. Open space shaded by trees does not.

While the project location may help the building\'s energy use, this is not a LEED strategy for reducing the heat island effect.

A reduced parking lot is a LEED strategy for curbing automobile use, not reducing heat islands.

Reducing the heat island effect involves shading hardscapes, using high SRI on hardscapes, or replacing hardscapes with open grid pavement. The reduction is based on a percent of the hardscapes. Let\'s say its 50%. If there is 2 acre parking lot, shading 1 acre meets the 50%. If there is a 1 acre parking lot, shading 1/2 acre meets the 50%. If all that happens is changing a 2 acre parking lot to a 1 acre parking lot, the 50% shreshold hasn\'t been met because reducing the quantity of hardscapes is not a LEED strategy to earn the credit.

For LEED purposes, open grid pavement is pavement that is less than 50% impervious and contains vegetation in the open cells. Open-grid pavement consists of a thin, open-graded asphalt mix layered over the top of a coarse stone aggregate; water passes through the asphalt surface and is stored in the aggregate, from which it slowly percolates into the soil. (USGBC)

The vegetation that can grow in open grid pavement helps reduce the heat island effect.