What review practice identifies design alternatives that reduce costs while yiel

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试卷: LEED GA模拟题C[查看]
What review practice identifies design alternatives that reduce costs while yielding higher performance?

A: Environmentally responsive design
B: Life cycle assessment
C: Life cycle costing
D: Value engineering

参考答案: D

本题解释:
Environmentally responsive design is a design approach that incorporates sustainable strategies into the design of a building.
Life cycle assessment (LCA) is the investigation and valuation of the environmental impacts of a given product or service. LCA evaluates environmental performance. This view takes into account the whole life of a product or project (not assessing it from a single point in time).

Life cycle costing (LCC) is the evaluation of the total cost of a building or product over its useful life, including initial, maintenance, repair and replacement costs as well as savings. LCC evaluates economic performance.

Value engineering (VE) is review process that identifies and selects the lowest lifecycle cost options in design, materials and processes that achieves the desired level of performance, reliability and customer satisfaction.

USGBC has redefined value engineering to mean reducing costs while improving performance.

In conventional building many building features are VEd out to cut the budget. Because of the integrated process in green buildings, VEing out a feature often messes up the performance of the system as a whole. For example if a building owner decides to take out better quality and more costly insulation, the building\'s utility bills will most likely go up and the HVAC system could be undersized.