8/14/2017 1
Building It Right
Dennis Dvorak FHWA Resource Center July 27, 2017
Building It Right Dennis Dvorak FHWA Resource Center July 27, 2017 - - PDF document
8/14/2017 Building It Right Dennis Dvorak FHWA Resource Center July 27, 2017 Bob Conway FHWA Resource Center Formula One Track in Austin, TX 1 8/14/2017 Todays Topics A primer on 23 CFR 637 FHWA QA Assessment NHI Course
Dennis Dvorak FHWA Resource Center July 27, 2017
4
QA Program
Agency Acceptance Dispute Resolution Independent Assurance Contractor QC Lab Qualification Personnel Qualification
Material Process Sampling
Testing
Composite Variability
23 CFR 637.205 (a)
Revised June 29, 1995 Allowed use of contractors tests in acceptance decision Required qualified personnel and labs by June 29, 2000
Formal training of personnel including all sampling and testing Hands-on training to demonstrate proficiency of all sampling and testing to be performed, A written examination and the demonstration of the various sampling and testing methods, The following are not appropriate criteria for achieving or maintaining qualification status: Grandfathering Professional Engineer Lifetime qualification.
12
TX
33
Contractors Tests Used in Acceptance Decision
19
State Tests Used for Acceptance
16
18 Questions…
Risk of Contractor Fraud and Appropriate Payment Not tied to Regulatory Compliance Covers the Six Building Blocks of QA Questions Weighted 1, 2, 3, 5, & 7
Frequency
52 in FY 2008, 2010, 2012, 2014 and… 2017
DR QC IA LA/Q PQ/C AA
Higher Risk Factors – Weights of 5 or 7
Personnel Qualification Project Field Labs Dispute Resolution Independent Assurance Random Sampling Validation Process Control of Sample Locations
Lower Risk Factors – Weights of 1, 2, or 3
Visual Acceptance Sample Location PWL NTPEP Materials Management Risk Analysis for PWL Quality Characteristics Continuous Equations Lot Size
18
19 5 10 15 20 25 30 35 FY2014 Number of States
Type of Independent Assurance System
Project System Hybrid
Value Added 3 year guarantee Contactor cannot bid for 6 months if warranty work not completed
Materials and Workmanship Performance
Short-Term (Less than 10 years) Long-Term (10 years and more)
Motivate contractors to improve quality
Fairness Positive approach Factor into bidding
Differentiate contractors that produce “desirable” and “undesirable” quality work When incentives are included, they should be sufficient to encourage contractor innovation
Estimated PWL AQL PF=0.5PWL + 55
Pay Factor (%)
RQL
Pay Incentive Pay Disincentive
AQL Estimated PWL AQL PF=0.5PWL + 55
Pay Factor (%)
PF=100 RQL
Pay Disincentive
No Incentive
Pay Disincentive
FHWA