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Unformatted text preview: he stage." • "Design to a decibel level of
17." • "We're going to operate this
facility, so we need to keep
energy costs low." • "Select HVAC equipment for
low energy consumption." • "We're in a race with a
competitor. We think we're
ahead, but don't know how
much." • "Accelerate project delivery
within the bounds of safety,
quality, and spending limits." 48 5.2 Lean Design
• Crosby (1979): “1/10/100” rule for the impact of rework at different
stages of a project
– Changes made during the predesign phase would have an
impact of _______ to the project, ________ during the design
phase, and up to ________ after the beginning of construction.
– If rework is deferred until after project completion, cost for
changes not picked up previously could be as high as $1000! • The use of a facility must be designed before the facility itself can
be designed. 49 5.2 Lean Design
• Relationship between time and impact of design changes. (Source: Forbes and Ahmed 2009) 50 5.2 Lean Design – Client Types 51 Waste in Design – Unnecessary Negotiation I...
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This document was uploaded on 01/28/2014.
- Fall '14