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Federal Highway Administration
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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations
REPORT |
This report is an archived publication and may contain dated technical, contact, and link information |
Publication Number: FHWA-HRT-18-057 Date: December 2018 |
Publication Number: FHWA-HRT-18-057 Date: December 2018 |
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The movement of superheavy loads (SHLs) on the Nation’s highways is an increasingly common, vital economic necessity for many important industries, such as chemical, oil, electrical, and defense. Many superheavy components are extremely large and heavy (gross vehicle weights in excess of a few million pounds), and they often require specialized trailers and hauling units. At times, SHL vehicles have been assembled to suit the load being transported, and therefore, the axle configurations have not been standard or consistent. Accommodating SHL movements without undue damage to highway infrastructure requires the determination of whether the pavement is structurally adequate to sustain the SHL movement and protect any underground utilities. Such determination involves analyzing the likelihood of instantaneous or rapid load-induced shear failure of the pavement structure.
The goal of this project was to develop a comprehensive analysis process for evaluating SHL movement on flexible pavements. As part of this project, a comprehensive mechanistic-based analysis approach consisting of several analysis procedures was developed for flexible pavement structures and documented in a 10-volume series of Federal Highway Administration reports—a final report and 9 appendices.(1–9) This is Analysis Procedures for Evaluating Superheavy Load Movement on Flexible Pavements, Volume Ⅸ: Appendix H, Analysis of Cost Allocation Associated With Pavement Damage Under a Superheavy Load Vehicle Movement, and it details the methodology of allocating the cost of likely damage associated with an SHL-vehicle movement on flexible pavements. This report is intended for use by highway agency pavement engineers responsible for assessing the structural adequacy of pavements in the proposed route and identifying mitigation strategies, where warranted, in support of the agency’s response to SHL-movement permit requests.
Cheryl Allen Richter, Ph.D., P.E.
Director, Office of Infrastructure
Research and Development
Notice
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Technical Report Documentation Page
1. Report No.
FHWA-HRT-18-057 |
2. Government Accession No.
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3 Recipient's Catalog No.
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4. Title and Subtitle
Analysis Procedures for Evaluating Superheavy Load Movement on Flexible Pavements, Volume Ⅸ: Appendix H, Analysis of Cost Allocation Associated With Pavement Damage Under a Superheavy Load Vehicle Movement |
5. Report Date
December 2018 |
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6. Performing Organization Code
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7. Author(s)
Dario D. Batioja-Alvarez (0000-0002-1094-553X), Elie Y. Hajj (ORCID: 0000-0001-8568-6360), and Raj V. Siddharthan (ORCID: 0000-0002-3847-7934) |
8. Performing Organization Report No.
WRSC-UNR-201710-01H |
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9. Performing Organization Name and Address
Department of Civil and Environmental Engineering |
10. Work Unit No. (TRAIS)
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11. Contract or Grant No.
DTFH61-13-C-00014 |
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12. Sponsoring Agency Name and Address
Office of Infrastructure Research and Development |
13. Type of Report and Period Covered
Final Report; August 2013–July 2018 |
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14. Sponsoring Agency Code
HRDI-20 |
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15. Supplementary Notes
Nadarajah Sivaneswaran (HRDI-20; ORCID: 0000-0003-0287-664X), Office of Infrastructure Research and Development, Turner-Fairbank Highway Research Center, served as the Contracting Officer’s Representative. |
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16. Abstract
The movement of superheavy loads (SHLs) has become more common over the years, since it is a vital necessity for many important industries, such as chemical, oil, electrical, and defense. SHL hauling units are much larger in size and weight compared to standard trucks. SHL gross vehicle weights may be in excess of a few million pounds, so they often require specialized trailers and components with nonstandard spacing between tires and axles. Accommodating SHL movements requires the determination of whether the pavement is structurally adequate and involves the analysis of the likelihood of instantaneous or rapid load-induced shear failure. As part of the Federal Highway Administration project, Analysis Procedures for Evaluating Superheavy Load Movement on Flexible Pavements, a mechanistic–empirical based approach that relied on the use of locally calibrated performance models was proposed for the analysis of cost allocation associated with pavement damage under an SHL-vehicle movement. The approach considered many governing factors and provided useful ways to assess pavement damage from a single pass of an SHL vehicle. The approach was based on the determination of critical pavement responses associated with important pavement distress modes. A parametric analysis was conducted, and it was found that several factors can influence the calculation of pavement damage–associated costs (PDACs). For instance, PDACs are highly impacted by pavement temperature, SHL-vehicle operating speed, rehabilitation distress threshold, and variation in pavement structure. On the other hand, the annual daily truck traffic and the selection of the reference vehicle were found to be minimally influential in the cost allocation analysis. |
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17. Key Words
Superheavy load, pavement damage, cost allocation, flexible pavement, vehicle miles traveled |
18. Distribution Statement
No restrictions. This document is available to the public through the National Technical Information Service, Springfield, VA 22161. |
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19. Security Classification (of this report) Unclassified |
20. Security Classification (of this page) Unclassified |
21. No. of Pages
52 |
22. Price
N/A |
Form DOT F 1700.7 (8-72) | Reproduction of completed page authorized |