Evaluation of the Asphalt Binder Quality Tester (2022)
Chapter: Appendix C - Follow-Up Electronic Survey
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Appendix B - SME Interview Guide
Suggested Citation:
"Appendix C - Follow-Up Electronic Survey." National Academies of Sciences, Engineering, and Medicine. 2022. Evaluation of the Asphalt Binder Quality Tester. Washington, DC: The National Academies Press.
doi: 10.17226/26603.
APPENDIX C
Follow-Up Electronic Survey
ABQT Owner Agencies
- Approximately how many asphalt binder samples does your State Agency collect per year?
- What percentage of asphalt binder samples collected are tested at your lab?
- What percentage of tested asphalt binder samples do NOT meet the required specification for the intended mix design? Our interviews indicate it is around 1% in most states, does this seem:
- Seems about right
- Too high
- Too low
- If an asphalt binder sample is out of specification, what is the average length of time between the sample collection and a notice of the test results received by the contractor?
- If a binder sample is out of specification, would you estimate that about 50% of the out-of-specification asphalt binder is used before paving is stopped?
- Seems about right
- Too high
- Too low
- Our interviews indicated that not all out-of-specification asphalt binders could be detected by just looking at the PG grade of the sample. Would 20% be a good estimate for the percentage of out of specification binders that would still have the correct PG grade?
- Seems about right
- Too high
- Too low
- The two figures below show an example distribution of asphalt binder testing results, along with an example distribution of the increase in maintenance costs for binder samples that fail. Do these figures seem reasonable?
Suggested Citation:
"Appendix C - Follow-Up Electronic Survey." National Academies of Sciences, Engineering, and Medicine. 2022. Evaluation of the Asphalt Binder Quality Tester. Washington, DC: The National Academies Press.
doi: 10.17226/26603.
- If an asphalt binder does NOT meet the specifications for the mix designs, what percentage of the time would the pavement be removed and replaced immediately? Our interviews indicate that this is very rare; would about 1% of out-of-specification binders be a good estimate of what is severe enough to need to be immediately removed and replaced?
- Seems about right
- Too high
- Too low
Suggested Citation:
"Appendix C - Follow-Up Electronic Survey." National Academies of Sciences, Engineering, and Medicine. 2022. Evaluation of the Asphalt Binder Quality Tester. Washington, DC: The National Academies Press.
doi: 10.17226/26603.
- If an asphalt binder sample did not meet specification, but the pavement remained in place with just a fine assessed, would it be reasonable to assume that 40% of bad binder used would cause no increase in maintenance costs?
- Seems about right
- Too high
- Too low
- If an asphalt binder sample did not meet specification, would it be reasonable to assume that the pavement would be milled and replaced a year early on average?
- Seems about right
- Too high
- Too low
- Optional - Any additional comments
Suggested Citation:
"Appendix C - Follow-Up Electronic Survey." National Academies of Sciences, Engineering, and Medicine. 2022. Evaluation of the Asphalt Binder Quality Tester. Washington, DC: The National Academies Press.
doi: 10.17226/26603.
Abbreviations and acronyms used without definitions in TRB publications:
| A4A | Airlines for America |
| AAAE | American Association of Airport Executives |
| AASHO | American Association of State Highway Officials |
| AASHTO | American Association of State Highway and Transportation Officials |
| ACI–NA | Airports Council International–North America |
| ACRP | Airport Cooperative Research Program |
| ADA | Americans with Disabilities Act |
| APTA | American Public Transportation Association |
| ASCE | American Society of Civil Engineers |
| ASME | American Society of Mechanical Engineers |
| ASTM | American Society for Testing and Materials |
| ATA | American Trucking Associations |
| CTAA | Community Transportation Association of America |
| CTBSSP | Commercial Truck and Bus Safety Synthesis Program |
| DHS | Department of Homeland Security |
| DOE | Department of Energy |
| EPA | Environmental Protection Agency |
| FAA | Federal Aviation Administration |
| FAST | Fixing America’s Surface Transportation Act (2015) |
| FHWA | Federal Highway Administration |
| FMCSA | Federal Motor Carrier Safety Administration |
| FRA | Federal Railroad Administration |
| FTA | Federal Transit Administration |
| GHSA | Governors Highway Safety Association |
| HMCRP | Hazardous Materials Cooperative Research Program |
| IEEE | Institute of Electrical and Electronics Engineers |
| ISTEA | Intermodal Surface Transportation Efficiency Act of 1991 |
| ITE | Institute of Transportation Engineers |
| MAP-21 | Moving Ahead for Progress in the 21st Century Act (2012) |
| NASA | National Aeronautics and Space Administration |
| NASAO | National Association of State Aviation Officials |
| NCFRP | National Cooperative Freight Research Program |
| NCHRP | National Cooperative Highway Research Program |
| NHTSA | National Highway Traffic Safety Administration |
| NTSB | National Transportation Safety Board |
| PHMSA | Pipeline and Hazardous Materials Safety Administration |
| RITA | Research and Innovative Technology Administration |
| SAE | Society of Automotive Engineers |
| SAFETEA-LU | Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (2005) |
| TCRP | Transit Cooperative Research Program |
| TDC | Transit Development Corporation |
| TEA-21 | Transportation Equity Act for the 21st Century (1998) |
| TRB | Transportation Research Board |
| TSA | Transportation Security Administration |
| U.S. DOT | United States Department of Transportation |
Suggested Citation:
"Appendix C - Follow-Up Electronic Survey." National Academies of Sciences, Engineering, and Medicine. 2022. Evaluation of the Asphalt Binder Quality Tester. Washington, DC: The National Academies Press.
doi: 10.17226/26603.
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