aace seminar april 23 2013 revised seminar april... · 2015-04-17 · •integrated project...
TRANSCRIPT
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Osama Moselhi
Professor, Concordia University, Montreal, QC, Canada
AACE International
Montreal Section
April 23, 2013 1111
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Agenda• Introduction •Accelerated delivery of EPC projects (strategic level)
•PDS (selection)•Planned execution
•Schedule compression (tactical level)•Methods•Industry survey
•Concluding remarks2
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Acknowledgments
MASc
• Zorana Popić• Nazila Roofigari• Pierre Theberge
PhD
• Ibrahim Bakry• Adel Alshibani• Khaled ElRayes• Ahmed Hassanein• Pasit Lortarapong
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Project time
acceleration
Strategic
PSDTactical
Phased
construction
Fast-track
construction
Traditional
construction
Repetitive
construction
Unrestrictive
crew
movement
Restrictive
crew
movement
Algorithmic
Heuristic
Optimization
Knowledge
based
Revising job
logic
Revising
construction
methods
Artificial
intelligence
Knowledge based + Algorithmic 4444
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PDS: definition
“Project delivery system defines the structure of the relationships of the parties, the roles and responsibilities of the parties and the general sequence of the activities required to deliver the project.”
(Moore, 2000)
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Widely known PDS’s
•Traditional Design-Bid-Build (DBB)
•Construction Management at Risk (CMR)
•Design-Build (DB)
•Integrated Project Delivery (IPD)
Joint Committee of the AIA and the AGC, (2011), “Primer on Project Delivery.”
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(Fazio, Moselhi & Theberge,1988) 7777
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PDS
8BLDG 6801 Prof. Osama Moselhi
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Metric
Facility
type
Construction
speed
Delivery Speed Schedule
growth
Light
Industrial
DB, CMR>DBB DB, CMR>DBB
Multi-story
dwelling
Simple
office
DB>DBB, CMR CMR<DBB
Complex
office
DB>DBB DB>DBB, CMR DB,CMR<DBB
Heavy
Insudtrial
High
technology
DB>DBB DB>CMR
PDS performance metrics by facility type
Source: Design-Build Research Team, (1999), “Project Delivery System Selection Workbook”, IR 133-2, CII, UT Austin, Texas, USA.
Significant difference between PDS’s
Systems performing nearly the same or not enough evidence to report significance
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PDS comparisonregardless of facility type
Source: Design-Build Research Team, (1999), “Project Delivery System Selection Workbook”, IR 133-2, CII,UT Austin, Texas, USA.
MetricDB vs. CMR
%
CMR vs. DBB
%
DB vs. DBB
%
Construction
Speed7 faster 6 faster 12 faster
Delivery
Speed23 faster 13 faster 33 faster
Schedule
growth2.2 less 9.2 less 11.4 less
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Selection factor
PDS
Control Time
growth
Ensure
Shortest
Schedule
Promote early
procurement
Sum of
three
REV (out
of 300)
Traditional D-B-B 20 0 0 20
Traditional with early procurement 50 50 90 190
Traditional with PM 20 10 0 30
Traditional with CM 20 0 0 20
Traditional with early procurement and CM 50 40 90 180
CM @ Risk 70 80 100 250
Design-build (or EPC) 90 100 100 290
Multiple design-build 80 90 100 270
Parallel primes 0 90 80 170
Traditional with staged developemnt 0 60 50 110
Turnkey 100 100 100 300
Fast track 80 100 100 280
Source: Project Delivery and Contract Strategy Research Team, (2003), “Owner’s Tool for Project Delivery and Contract Strategy Selection, User’s Guide”, IR 165-2, CII, UT Austin, Texas, USA.
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Schedule-related selection factors relative effectiveness values (REV), 0=lowest, 100= highest
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Newly emerging PDS’s:
“Integrated project delivery (IPD) is a method
of project delivery distinguished buy a
contractual arrangement among a minimum of
the owner, constructor and design professional
that aligns business interests of all parties. IPD
motivates collaboration throughout the design
and construction process, tying stakeholder
success to project success and embodies the
following contractual and behavioral principles:
Source: Joint Committee of the AIA and the AGC, (2011), “Primer on Project Delivery,” 2nd Ed. 13
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Contractual principles
•Key Participants Join Together as Equals
•Shared Financial Risk and Reward Based on Project Outcome
•Liability Wavers between key Participants
•Fiscal Transparency between Key Participants
•Early Involvement of Key Participants
•Jointly Developed Project Target Criteria
•Collaborative Decision Making”
Source: Joint Committee of the AIA and the AGC, (2011), “Primer on Project Delivery,” 2nd Ed. 14
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Integrated Project Delivery (IPD) as a delivery method
“is when the owner has elected to sign a multi-party contract with the prime designer, contractor and/or other key members of the project team. In addition to the multi-party contract, IPD as a Delivery Method is characterized by a contract that incentivizes collaborative behavior, team risk-sharing and other IPD principles and practices.”
Source: NASFA, COAA, APPA, AGC and AIA, (2010), “Integrated Project Delivery for Public and Private Owners. 15
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IPD – Team Integration
Source: AGC, IPD: Lessons from the Trenches (Powerpoint) - February 26, 2009, <http://www.agc.org/cs/industry_topics/project_delivery/integrated_project_delivery>
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IPD - Early involvement of key participants
Source: AIA National/AIA California Council (2007) Integrated Project delivery: A Guide”
Traditional design process
Integrated design process
Predesign SchematicDesign
DesignDevelopment
ConstructionDocuments
Agency Permit/Bidding
Construction Closeout
ConceptualizationCriteriaDesign
DetailedDesign
ImplementationDocuments
Agency Coord/Final Buyout
Closeout
WHAT
HOW
REALIZE
REALIZE
WHAT
WHO
HOW
AgencyOwner
Designer
Design ConsultantsConstructors
Trade Constructors
AgencyOwnerDesignerDesign ConsultantsConstructorsTrade Constructors
WHO
Construction
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IPD – schedule performance
• Reduced construction time due to extensive planning
• Accelerated schedule is common reason for selecting IPD
• “Lean” principles to increase efficiency:
Each party makes commitments to schedule and identifies obstacles to meeting them – being part of a team is a motivation to fulfill those commitments
Sources:AIA National/AIA California Council, (2007), “Integrated Project delivery: A Guide”Joint committee of the NASFA, COAA, APPA,AHEFO, AGC and AIA, (2010), “Integrated Project Delivery for Public and Private Owners”.
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IPD – Sutter Health Fairfield Medical office Building, California, U.S.A
• schedule management - primary motivator for IPD
• 2005-2007
• early involvement of subcontractors drastically reduced rework
Sources:AIA, AIA Minnesota, School of Architecture – University of Minnesota, (2012), IPD Case Studies. http://inhabitat.com/walter-cronkite-school-of-journalism-is-a-hard-hitting-energy-efficient-news-school/http://www.theboldtcompany.com/project/sutter-health-california-pacific-medical-center-medical-office-building/
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IPD - Walter Cronkite School of Journalism, Phoenix, Arizona, U.S.A
• challenging and strict schedule (2006-2008)
• schedule predictability - primary motivator for IPD
• design-build contract with features of IPD:
• mutually defined/aligned project goals
• early involvement of key participants
• collaborative decision making
• fiscal transparency
• co-location
• BIM
Sources:AIA, AIA Minnesota, School of Architecture – University of Minnesota, (2012), IPD Case Studies. http://inhabitat.com/walter-cronkite-school-of-journalism-is-a-hard-hitting-energy-efficient-news-school/
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Newly emerging PDS’s
Integrated Design-Bid-Build (IDBB)
• IPD adapted by U.S Army Corps of Engineers
•separate contracts for design and construction awarded concurrently to allow collaborative simultaneous design and construction activities
• two key aspects
• early contractor involvement (ECI)
• extension of A/E construction phase services
Source: Brennan, M, (2011), “Integrated Project Delivery: A Normative Model for Value Creation in Complex Military Medical Projects”. PhD Thesis, University of Illinois at Urbana-Champaign, IL, USA. 21
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Army Health Facility Planning Agency
Integrated Design-Bid-Build (IDBB)
Source: Brennan, M, (2011), “Integrated Project Delivery: A Normative Model for Value Creation in Complex Military Medical Projects”. PhD Thesis, University of Illinois at Urbana-Champaign, IL, USA.
U.S. Government: DoD, USACE, USAHFPA. . .
RFP
RFP
Inspection or observation of construction A/E servicesA/E Design
Const. support services Construction
Project Timeline
BUILDER
DESIGNER
OWNER
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Project delivery process timeline comparison
Source: Brennan, M, (2011), “Integrated Project Delivery: A Normative Model for Value Creation in Complex Military Medical Projects”. PhD Thesis, University of Illinois at Urbana-Champaign, IL, USA.
DESIGN
BID CONSTRUCTION
DESIGN
BID CONSTRUCTIONA/E/RFP
DESIGN
BID
CONSTRUCTION
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IDBB - Fort Belvoir Community Hospital, Fort Belvoir, VA
• 4 years (2007-2011) - 2 years quicker than other projects of similar size and complexity
• ~$1.2 billion program, 1.3 million square feet
Sources: Brennan, M, (2011), “Integrated Project Delivery: A Normative Model for Value Creation in Complex Military Medical Projects”. PhD Thesis, University of Illinois at Urbana-Champaign, IL, USA.http://usmilitary.about.com/od/armybaseprofiles/ss/belvoir_9.htm
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Source: Morris, R. (2007), BRAC Industry Day II: San Antonio
A/EContract Design Construction Mods Move
Advertise CM
Services
Neg.
Advertise/ Evaluate
CM Services
A/ETask Order
RFPPreparation
U.S Army Core of Engineers - Notional Project
Advertise/Evaluate
FinishDesign Construction
Mods Move
Design
A/EContract
Construction Mods Move
Construction Mods Move
AWARD
24 months
22 months
23 months
25
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“Fast-Track”
22 months
Source: U.S. Army Corps of Engineers, (2008), “Integrated Design-Bid-Build and its application to the BRAC05 NGA New Campus East, Engineer Proving Ground, Fort Belvoir, VA”.
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(Fazio, Moselhi & Theberge,1988) 7777
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Schedule compressionSchedule compressionSchedule compressionSchedule compression
28282828
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Also known as:
• Scheduling with time constraints
• Project time reduction
• Least-cost expediting• Project compression
• Least-cost scheduling• Optimized scheduling
• Schedule crashing• Project acceleration
Schedule compression
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Contractors, Owners and their agents
30303030
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For Contractors:For Contractors:For Contractors:For Contractors:
• Imposed contractual time
•Early completion bonus
•Recover from experienced delays
•Avoid adverse weather conditions
31313131
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For For For For Owners:Owners:Owners:Owners:
•Meet fiscal requirements
• Recover from delays caused by:• Change orders
• Late approvals of submittals
•Meet changing market conditions
•Meet business operational requirements
•Minimize project total cost32323232
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Targeted Original 35353535
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Time-cost trade-off
Definition
The process of establishing the delicate
balance between the overall cost of a
project and its duration, to achieve the
desired overall project objectives, is
referred to as time-cost trade-off.
Why?Although each activity is planned to be carried out in the most efficient manner, the generated schedule may not lead to least-cost project duration
Minimize project total cost
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33333333
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ExactExactExactExact
OptimumOptimumOptimumOptimum
Optimization
ExactExactExactExact
OptimumOptimumOptimumOptimum
Optimization
Near Near Near Near
OptimumOptimumOptimumOptimum
GA
Harmony
Search
Near Near Near Near
OptimumOptimumOptimumOptimum
GA
Harmony
Search
ApproxiApproxiApproxiApproxi----
matematematemate
Heuristic
Rules of
thumb
ApproxiApproxiApproxiApproxi----
matematematemate
Heuristic
Rules of
thumb
34343434
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Cost (Activity level)Cost (Activity level)Cost (Activity level)Cost (Activity level)
37373737
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ERROR: undefined
OFFENDING COMMAND: f‘~
STACK: