leaning project delivery: altering the cost = risk equation

The Design Partnership LLP

Architects + Planners

Leaning Project Delivery

Altering the “Cost = Risk” Equation

Agenda1.Design Technology2.Construction Technologies3.The “Risk = Cost” Equation

Waste Reduction

• 40% of US solid waste stream is construction waste.1

1. US Green Building Council

Image courtesy of Washington Times.

Waste Reduction

1. Design Technology

• Virtual Simulation/Pre-visualization

• Building Information Modeling (BIM)

• Clash Detection (Pre-coordination)

Virtual EnvironmentsPre-visualization

Simulation

Virtual Equipment Simulation

Design Visualization

Simulation & Virtual Prototyping

• Test Equipment Layout for Critical Spaces– Surgery Suites– Nurse Stations

• Test Sightlines• Test Processes• Test Aesthetics

Reduced waste of User Changes after construction.

Building Information Modeling (BIM)

BIM is a Database

Building Information Modeling (BIM)

BIM is a 3D Database

A Federated Model

• Reduced Document Coordination Effort• No duplication of effort between A/E• Real-time Project Metrics

Time for Efficient Design & Systems Coordination

Documentation Waste

Clash Detection(Pre-coordination)

3D Laser Survey

Clash Detection & Coordination

Where is the coordination

error?

Structural Plan

Mechanical Plan

Rework Waste Prevention

• Coordination with existing conditions• Coordination between building systems• Increased systems awareness• Architects & Engineers (and sometimes

the contractor and subcontractors) communicate and share knowledge

Reduced waste of rework due to spatial coordination.

2. Construction Technology

• 3D Shop Drawings• Direct Fabrication• Prefabrication• Capabilities

3D Shop Drawings

Architects + PlannersImage courtesy of Marelich Mechanical

Direct Fabrication

Architects + PlannersImages courtesy of Marelich Mechanical

Direct Fabrication

Prefabrication

Just-in-time Delivery

Prefabrication

Construction Waste Prevention

• Material efficiency algorithms• No part duplication/no lost parts• Reduced labor with direct fabrication• No storage/ just-in-time delivery• Prefabrication labor in shop

Reduced waste of due to field labor.

Capabilities

3D Capable Trades

• HVAC• Plumbing• Structural Steel• Precast Concrete• Rebar• Steel Stud Walls• Curtain Walls, etc.• Millwork• Unit Restrooms• Laboratories

Relative Sophistication DisparityGeneral Contractors (Very Low to Low)

Engineers (Very Low to Moderate) Architects (Low to Moderate) Subcontractors (Varies, some extremely

Maximize advantage of sophisticated players

Enhance process for Subs already using 3D

Mentor less advanced members Integrated Project Delivery

3. “Risk = Cost” Equation

• Decrease in Contractor’s Risk• Decrease in Owner’s Risk• Increase in Architect’s

Exposure• Reduced Risk for All = Reduced

Automatic Document Coordination

3D Systems Coordination

Virtual Building Simulation

Direct Fabrication

Project Delivery Improvement

The Big BIM/IPD/Lean Idea

Reduced Coordination Errors Reduced Unknown Conditions More Efficient Workflow Cooperation & Collaboration Reduced Contingency

Increased Confidence & Reduced Risk

Decrease in Contractor’s Risk

Decrease in Owner’s Risk Reduced Bids Due To Reduced

Contractor Risks Reduced Risk Of

– Change Orders From Unknown Conditions

– Coordination Changes– Fighting Among AEC Entities

Reduced User Changes Due To Better Pre-visualization And Planning

Reduced Risk

Unknown Consequences Of Sharing BIM Information

Design Only Information In BIM ModelExtensive Pre-coordinationFabrication From Design Models

Increased Exposure to Risk

Increase in Architect’s Exposure

Reduced Risk for All = Reduced Cost

Architect’s Exposure However

Architect’s Risk

THE DESIGN

PARTNERSHIP Architects + Planners

Sincerely,Eric Peabody

Questions?

Thank you for your time.

leaning project delivery: altering the cost = risk equation

cost equation

us solid waste stream

plannerswaste reduction40

construction waste

information modeling

Design

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