What is an example of value engineering?

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试卷: LEED AP BD+C模拟题C[查看]
What is an example of value engineering?
A: Selecting insulation with higher upfront costs but lower life cycle costs
B: Choosing a flooring material that has higher costs and lower impact on environment over lower cost and greater impact
C: Replacing an asphalt parking lot with less costly crushed gravel that has higher SRI
D: Increasing the diversion rate of recycled materials

参考答案: C

本题解释:
A is an example of life cycle costing.
B is not value engineering but life cycle assessment because the environmental attributes are considered, not the performance of the product.

Value engineering (VE) is a 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 defines value engineering to mean reducing costs while improving performance.

In this example the project team is reducing cost by switching to crushed gravel and reducing the heat island effect by using a higher SRI product (thus improving performance). Gravel roads also allow for water to get through the pervious surface.

D contributes to sustainability but would not be considered value engineering because an alternative was not selected that reduced costs.