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SHRP 2 R-07 Performance Specifications for Rapid Renewal AASHTO Subcommittee for Construction August 18, 2010, Burlington, VT Sid Scott, R-07 Principal.

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Presentation on theme: "SHRP 2 R-07 Performance Specifications for Rapid Renewal AASHTO Subcommittee for Construction August 18, 2010, Burlington, VT Sid Scott, R-07 Principal."— Presentation transcript:

1 SHRP 2 R-07 Performance Specifications for Rapid Renewal AASHTO Subcommittee for Construction August 18, 2010, Burlington, VT Sid Scott, R-07 Principal Investigator

2 Briefing Overview Introduction to R-07 Objectives/Definitions/Timeline Progress to Date Deliverables How Will Tools/Products Be Used? Status at End of Research

3 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

4 Defining Performance Specs TRB E-C074  Specifications that describe how the finished product should perform over time. 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.

5 Team Trauner Consulting Services TDC Partners Michael Baker, Jr. The Transtec Group, Inc. Virginia Transportation Research Council Heritage Group David White  Iowa State University Stu Anderson & Ivan Damnjanovic  TTI Keith Molenaar  University of Colorado Mike Loulakis  A/E/C Training Technologies Bill Roberds  Golder Associates

6 R-07 Timeline 20072008200920102011 Phase 1 Phase 2 Phase 3 2012 Phase 4 Final Report Demonstration projects Final guide specs Phase 1 Status (Literature Review) and Risk Phase 2 Measurement Strategy & Selection Tool Phase 3 Specifications & Guidance Phase 4 Validation (Demo Projects) Phase 1 Report Phase 2 Research Plan Phase 2 Report Revised Phase 3 Work Plan Phase 3 Report Draft PS Implementation Guidance

7 Progress to Date Actual or Potential Value (Performance Specifying v Method Specifying) Increased industry accountability Accelerated delivery Potential for higher quality, lower life-cycle cost Potential for reduced inspection and administrative $ Public Sector Benefits Difficulty in setting appropriate thresholds Quality/safety balanced against time and budget constraints Loss of control over assets Public 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 Private Sector Benefits Overly stringent performance requirements Inflation/escalation on long- term agreements Private Sector Risks

8 Progress to Date Quantitative Measurement Strategy 1. Performance Parameters and Desired Level of Performance Aggregate, binder Mix methods, mix components Charging, mixing, handling Transport, placing, curing, sawing Density, air, thickness, strength, modulus, geometry Comfort, accessibility, safety, travel time USER (Tier I) COMBINED MATERIALS (Tier VI) MIXING REQUIREMENTS (Tier V) CONSTRUCTION (Tier IV) AS-CONSTRUCTED (Tier III) Ride, friction, noise, rutting, cracking FUNCTIONAL (Tier II) METHOD ~ PERFORMANCE BASIC MATERIALS (Tier VII)

9 Progress to Date Quantitative Measurement Strategy 2. Measuring & monitoring compliance Test or inspection method Sampling interval/evaluation section length Frequency of measurement 3. Incentive strategies and payment mechanisms Payment over time Incentive/disincentives Penalty point system 4. Identify potential gaps

10 Contractor Risk Zone Contractor Risk Zone Contractor Risk Zone Anticipated Maintenance DesignConstMaintenance Design-Bid-Build DesignConstMaintenance Design-Build DesignConstMaintenance DBB/DB with Warranty DesignConstMaintenance Design-Build-Maintain Progress to Date Quantitative Measurement Strategy 5.Contract delivery approach & risk allocation

11 Progress to Date Identify States for Demonstration Projects Questionnaire distributed to solicit interest  10 responses received  Follow-up conducted with 9 agencies: Caltrans Florida PennsylvaniaWisconsin MissouriLouisiana VirginiaDelaware Utah

12 Progress to Date Demonstration Projects Geotechnical  Missouri Project:  2-mile D-B-B improvement project on Route 141 near St. Louis  Pavement foundation (sub-base/base) Objectives:  Demonstrate use of NDT Mechanistic QA/QC testing technologies & IC measurements for improved test frequency and process control.  Calibrate IC values to QA point measurements to establish target values.  Data collection and future development of performance specifications based on IC values and statistical acceptance criteria.

13 Progress to Date Demonstration Projects Pavement/Bridge Decks  Louisiana Full pavement section (soil subgrade and HMA) Mechanistic QA/QC testing technologies & IC measurements for full pavement section  Virginia Bridge deck replacement projects  Route 208 Bridge over Lake Anna on the Spotsylvania- Louisa County Line

14 Progress to Date Demonstration Projects Work Zone Traffic Control  Performance-based work zone traffic control for proposed UDOT Project PCC Pavement (shadow)  DelDOT Rt. 301 – DB w/ PCC performance specification

15 Progress to Date Selection of Performance Specifications Screening Considerations  Is enhanced performance a project goal? 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? 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?

16 Progress to Date Selection of Performance Specifications 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

17 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 PWL Project or Quality Index (KPIs)  O&M Periodic payments with I/D (bonus/penalty) point/indexing systems

18 Research Deliverables Selection Guidance  Performance v. method  Risk assessment  Contracting type  Performance Parameters/measures Implementation Guidance  Roles and responsibilities  Measurement, testing  Verification & acceptance  Payment strategies

19 Research Deliverables Performance Guide Specifications Pavements Flexible Rigid Bridges Decks Other Structural Elements GeotechnicalWork zone Traffic Control By Contract Delivery Method DBBDBDBWDBM

20 How Will Products Be Used? Guide Performance Specifications (hardcopy) Indexed Electronic Files available on CD  Specifications  Commentary  Companion Guidelines Guidance and Commentary to assist users in adapting guide specifications to project and/or agency requirements

21 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 MoDOT geotechnical performance specification VDOT PCC Bridge Deck performance specifications

22 Long-term Implementation Additional Pilot or Demonstration Projects to demonstrate benefits Development of std. test methods and acceptance criteria for NDT that more directly relate to performance (e.g. mechanistic-based properties) Long-term pilot performance evaluations (warranty and maintenance parameters) Publication of performance evaluations for pilot projects (either existing or future projects) Joint DOT/Industry outreach On-line tools to assist Construction Engineers & Specifiers

23 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

24 SHRP 2 R-07 Performance Specifications for Rapid Renewal Panel Briefing 4-8-10 Sid Scott, R-07 Principal Investigator


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