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Lean Construction principles, a production management-based approach to project delivery where work is structured throughout the process to maximize value and reduce waste, are integrated into all projects. Efforts to manage and improve performance are aimed at improving the total project, challenging historic beliefs that there must always be a trade between time, cost, and quality.
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1Dave Umstot, Vice Chancellor, Facilities Management
ENR/CURT FORUMJune 16, 2010
KEYS TO ENHANCING PRODUCTIVITY
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David Umstot, PEVice Chancellor
Facilities ManagementSDCCD
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San Diego Community College District Construction Program Overview
• $1.555 billion bond program provides for new facilities, major renovations, infrastructure projects, parking & public safety enhancements at City, Mesa and Miramar Colleges, and six Continuing Education campuses
• Projected Square Footage Additional Building GSF – 1,601,443 Total Building GSF – 3,679,451 Additional Parking GSF – 987,289 Total Parking GSF – 1,365,001 Grand Total GSF – 5,044,452
• Number of students served – 142,510
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Reduce Waste/Inefficiency
Construction Lags Behind Other IndustriesDelayed Submittals and Approvals
Redesign
Rework
Improper Sequencing of Work
Improvement of Revenues
Multiple Handling of Material
Claims/Litigation
Source: Construction Industry Institute.
OWNER’S PERSPECTIVE: Why Improve Productivity?
Manufacturing
Image Space
Manufacturing
Construction
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Improving Productivity by Bringing Trades Input Earlier
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BIM allows Designers, Builder and Trade Contractors to work in a Collaborative, 3D Environment During Design and Construction
BIM (Building Information Modeling): Why Do It?
Benefits Fewer RFIs Fewer Change Orders Fewer Delays Prefabrication
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Building ConstructionMechanical piping hits cable tray and fire protection piping in ceiling space
Survey Average ResultsMan-hour Savings = 61 Delay Savings = 3 Days Cost Savings = $30,349.00
INTERNAL CLASH SURVEY: Saving Money and Improving Productivity
Number of Clashes Shown in Example = 9
Savings per Clash Resolved = $3,372.00
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SUNDT
Average Savings Per Clash Resolution
$5,934.00
3 Days
59 Man-hours
BIM: Average Cost per Clash Avoided
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BIM: Change Management
• Projects designed in BIM: Change Order Rate = 2.3%
• Projects not designed in BIM: Change Order Rate = 8.0%
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BIM STANDARDS
http://www.sdccdprops-n.com/BUILDING%20STANDARDS/SDCCD_BIM_Standards_Ver01.pdf
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Remote Office Construction Kit (ROCK)
