Transcript Slide 1

SHRP 2 R-07
Performance Specifications
for Rapid Renewal
Sid Scott, R-07 Principal Investigator
AASHTO Subcommittee for Construction
August 18, 2010, Burlington, VT
Briefing Overview
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Introduction to R-07
Objectives/Definitions/Timeline

Progress to Date
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Deliverables
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How Will Tools/Products Be Used?
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Status at End of Research
R-07 Objectives
1.
Reduce completion time while maintaining or
improve quality and service life (Rapid Renewal)
2.
To encourage innovation, reduce mandatory
method requirements and define end products
3.
Develop different specifications that can be used
effectively in various contracting scenarios
4.
Develop recommendations on the transition to the
use of these specifications (implementation plan)
including selection criteria and guidance
5.
Quantify relative shared risk and develop strategies
to manage risk
Defining Performance Specs
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TRB E-C074
 Specifications that describe how the finished product should
perform over time.
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DOD
 A performance specification states requirements in terms of the
required results with criteria for verifying compliance, but without
stating the methods for achieving the required results.

SHRP 2 R-07 [PS Strategic Roadmap 2004]
 In the broadest terms, a performance specification defines the
performance characteristics of the final product and links them to
construction, materials, and other items under the contractor
control.
Team
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Trauner Consulting Services
TDC Partners
Michael Baker, Jr.
The Transtec Group, Inc.
Virginia Transportation
Research Council
Heritage Group
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David White
 Iowa State University
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Stu Anderson & Ivan
Damnjanovic
 TTI
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Keith Molenaar
 University of Colorado
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Mike Loulakis
 A/E/C Training Technologies
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Bill Roberds
 Golder Associates
R-07 Timeline
2007
Phase 1
2008
2009
Phase 2
2010
Phase 3
2011
2012
Phase 4
Phase 1 Status (Literature Review) and Risk
Phase 1 Report
Phase 2 Research Plan
Phase 2 Measurement Strategy & Selection Tool
Phase 2 Report
Revised Phase 3 Work Plan
Phase 3 Specifications & Guidance
Phase 3 Report
Draft PS
Implementation Guidance
Phase 4 Validation (Demo Projects)
Final Report
Demonstration projects
Final guide specs
Progress to Date
Actual or Potential Value (Performance Specifying v Method Specifying)
Public
Sector
Benefits
Public
Sector
Risks
• Increased industry
accountability
• Accelerated delivery
• Potential for higher
quality, lower life-cycle
cost
• Potential for reduced
inspection and
administrative $
• Difficulty in setting
appropriate thresholds
• Quality/safety balanced
against time and budget
constraints
• Loss of control over
assets
Private
Sector
Benefits
Private
Sector
Risks
• More flexibility
• Ability to be more competitive
through best-value
procurement and creative
solutions to requirements
• Higher return through
innovation
• Innovative materials/methods
• Overly stringent performance
requirements
• Inflation/escalation on longterm agreements
Progress to Date
Quantitative Measurement Strategy
1. Performance Parameters and Desired Level of
Performance
USER
Comfort, accessibility, safety, travel time
(Tier I)
FUNCTIONAL
(Tier II)
Ride, friction, noise, rutting, cracking
AS-CONSTRUCTED
(Tier III)
CONSTRUCTION
(Tier IV)
MIXING REQUIREMENTS
(Tier V)
COMBINED MATERIALS
(Tier VI)
BASIC MATERIALS
(Tier VII)
Density, air, thickness, strength,
modulus, geometry
Transport, placing, curing, sawing
Charging, mixing, handling
Mix methods, mix components
Aggregate, binder
Progress to Date
Quantitative Measurement Strategy
2. Measuring & monitoring compliance
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Test or inspection method
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Sampling interval/evaluation section length
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Frequency of measurement
3. Incentive strategies and payment mechanisms
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Payment over time
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Incentive/disincentives
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Penalty point system
4. Identify potential gaps
Progress to Date
Quantitative Measurement Strategy
5. Contract delivery approach & risk allocation
Design-Bid-Build
Design Const
Maintenance
Design-Build
Design Const
Maintenance
Contractor
Risk Zone
Contractor
Risk Zone
DBB/DB with Warranty
Design-Build-Maintain
Anticipated
Maintenance
Design Const
Maintenance
Contractor Risk Zone
Design Const
Maintenance
Contractor Risk Zone
Progress to Date
Identify States for Demonstration Projects
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Questionnaire distributed to solicit interest
 10 responses received
 Follow-up conducted with 9 agencies:
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Caltrans
Florida
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Pennsylvania
Wisconsin
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Missouri
Louisiana
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Virginia
Delaware
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Utah
Progress to Date
Demonstration Projects
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Geotechnical
 Missouri
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Project:
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2-mile D-B-B improvement project on Route 141 near St. Louis
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Pavement foundation (sub-base/base)
Objectives:
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Demonstrate use of NDT Mechanistic QA/QC testing
technologies & IC measurements for improved test frequency and
process control.
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Calibrate IC values to QA point measurements to establish target
values.
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Data collection and future development of performance
specifications based on IC values and statistical acceptance
criteria.
Progress to Date
Demonstration Projects
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Pavement/Bridge Decks
 Louisiana
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Full pavement section (soil subgrade and HMA)
Mechanistic QA/QC testing technologies & IC
measurements for full pavement section
 Virginia
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Bridge deck replacement projects
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Route 208 Bridge over Lake Anna on the SpotsylvaniaLouisa County Line
Progress to Date
Demonstration Projects
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Work Zone Traffic Control
 Performance-based work zone traffic control for
proposed UDOT Project
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PCC Pavement (shadow)
 DelDOT Rt. 301 – DB w/ PCC performance
specification
Progress to Date
Selection of Performance Specifications
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Screening Considerations
 Is enhanced performance a project goal?
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Reduced life-cycle cost , accelerated delivery, or minimizing user
impacts
 Are there multiple approaches to achieve a desired result and can
flexibility be extended to the contractor?
 Where is the project in the development process?
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Conceptual vs. final design stage
Restrictions to use of alternative delivery?
Can the contractor assume greater risk/responsibility for performance?
Other organizational or policy constraints?
Advantage to private sector asset management or equity investment?
Progress to Date
Selection of Performance Specifications
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Additional Considerations
 Key characteristics of product performance can be
measured and tested
 Test methods are reliable, practical, & economical in a
rapid renewal environment
 Incentives can be used to enhance performance
Progress to Date
Develop Specification Language and Guidance
 What is required performance? (parameters &
levels)
 How will agency evaluate & monitor?
 What incentives and payment mechanisms
should be used?
 Construction
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PWL
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Project or Quality Index (KPIs)
 O&M
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Periodic payments with I/D (bonus/penalty)
point/indexing systems
Research Deliverables
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Selection Guidance
 Performance v. method
 Risk assessment
 Contracting type
 Performance Parameters/measures
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Implementation Guidance
 Roles and responsibilities
 Measurement, testing
 Verification & acceptance
 Payment strategies
Research Deliverables
Performance Guide
Specifications
By Contract
Delivery Method
Pavements
DBB
• Flexible
• Rigid
Bridges
• Decks
• Other Structural Elements
DB
Geotechnical
DBW
Work zone Traffic Control
DBM
How Will Products Be Used?
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Guide Performance Specifications (hardcopy)
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Indexed Electronic Files available on CD
 Specifications
 Commentary
 Companion Guidelines
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Guidance and Commentary to assist users in
adapting guide specifications to project and/or
agency requirements
Status at End of Research Program
 Adapting specification products on
demonstrations is feasible
 State DOTS are currently implementing
research products for demonstrations
 Performance provision development for
demonstrations are underway
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MoDOT geotechnical performance specification
VDOT PCC Bridge Deck performance
specifications
Long-term Implementation
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Additional Pilot or Demonstration Projects to demonstrate
benefits
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Development of std. test methods and acceptance criteria for
NDT that more directly relate to performance (e.g.
mechanistic-based properties)
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Long-term pilot performance evaluations (warranty and
maintenance parameters)
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Publication of performance evaluations for pilot projects
(either existing or future projects)
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Joint DOT/Industry outreach
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On-line tools to assist Construction Engineers & Specifiers
On-line Tool to Develop Performance
Specifications for Rapid Renewal Projects
1
• Identify project scope/characteristics
• Define project goals
2
• Assess whether goals can be best achieved through use of performance or
method specifications
3
• Select appropriate contracting approach aligned with project goals and risk
allocation
4
• Assess what parameters to use and how to measure to manage performance
in rapid renewal environment
5
• Select appropriate performance specification(s) from library or suite of
performance guide specifications
6
• Implement for (adapt to) a specific project using guidance on roles and
responsibilities, NDT, acceptance, and payment strategies
SHRP 2 R-07
Performance Specifications
for Rapid Renewal
Panel Briefing 4-8-10
Sid Scott, R-07 Principal Investigator