Pavement Health Track Remaining Service Life (RSL) Forecasting Models, Technical Information
- Technical Report Documentation Page
- Pavement Remaining Service life: Overview
- Procedure for Computing Pavement RSL
- Pavement Condition Forecasting Models
- Procedure for Estimating ESAL
- Step 1: Assemble Relevant Data from the HPMS 2010+ Program
- Step 2: Estimate Future AADT Growth Rate
- Step 3: Estimate AADT for Any Given Year X
- Step 4: Estimate Number of Single Unit and Combination Trucks
- Step 5: Estimate Number of FHWA Class 4 through 13 Trucks
- Step 6: Estimate Number of Axle per FHWA Class 4 through 13 Trucks
- Step 7: Determine the Number of Single, Tandem, Tridem, and Quad Axles for Each Load Class
- Step 8: Use Appropriate AASHTO Load Equivalency Factors (LEFs) to Estimate ESALs
- Step 9: Estimate Cumulative ESALs
- Guidance on Setting Up the Input Database
- Guidance on Setting Key Parameters
- References
List of Tables
- Table 1. Multi-Condition Approach for Determining Pavement RSL
- Table 2. Summary of Performance Measures and Associated Models
- Table 3. JPCP Transverse Cracking Model Coefficients and Input Variables
- Table 4. Description of JPCP Transverse Joint Faulting Model Input Variables
- Table 5. Description o f JPCP Transverse Joint Spalling Model Input Variables
- Table 6. Description of JPCP IRI Model Input Variables
- Table 7. Description of HMA Dynamic Modulus Equation Input Variables
- Table 8. Input Variables for the Unaged HMA Binder Viscosity Equation
- Table 9. Input Variables for the HMA Binder Viscosity at Placement Equation
- Table 10. Input Variables for the HMA Binder Viscosity Equation (at the HMA surface, for any given age)
- Table 11. Input Variables for Adjusting Aged Viscosity for Changes in HMA Air Voids (at the HMA surface)
- Table 12. Input Variables for Computing HMA Viscosity (at a given age and depth)
- Table 13. Locations for Computing Critical Flexible Pavement Responses
- Table 14. Input Variables for Computing Frequency of Loading
- Table 15. Input Variables Required for Computing Critical Strains
- Table 16. Equations for Estimating Critical Strains within HMA Pavement
- Table 17. Input Variables Required by the Alligator Cracking Model
- Table 18. Input Variables Required by the Rutting Model
- Table 19. Input Variables Required to Compute FACTOR
- Table 20. Input Variables Required to Compute FROSTH and SWELLP
- Table 21. Values of the Reflective Cracking Model Parameter d
- Table 22. Traffic Data Required from HPMS for Computing ESALs
- Table 23. Lane Distribution Factors
- Table 24. Distribution of Single Unit and Combination Trucks (Percent)
- Table 25. Average Number of Single, Tandem, Tridem, and Quad axles per Vehicle Class
- Table 26. Single-Axle Load Distribution Values for each Vehicle/Truck Class (Percentages)
- Table 27. Tandem-Axle Load Distribution Values for each Vehicle/Truck Class (Percentages)
- Table 28. Tridem-Axle Load Distribution Values for each Vehicle/Truck Class (Percentages)
- Table 29. Quad-Axle Load Distribution Values for each Vehicle/Truck Class (Percentages)
- Table 30. Example of AASHTO Load Equivalent Factors for Computing ESALs
- Table 31. Example of AASHTO Load Equivalent Factors for Computing ESALs
- Table 32. Example of AASHTO Load Equivalent Factors for Computing ESALs
- Table 33. Example of AASHTO Load Equivalent Factors for Computing ESALs
- Table 34. HPMS Data Items Required for Pavement Equations
- Table 35. Default Soil Properties Information (Computed using LTPP data)
- Table 36. Default PCC Properties Information (Computed using LTPP data)
- Table 37. Default JPCP Design Information
- Table 38. Default Base Material Modulus (Computed using LTPP Data and MEPDG Defaults)
- Table 39. Default Climate Data
- Table 40. Default Soil Resilient Modulus (Adapted from MEPDG)
- Table 41. Default HMA/Asphalt Layer Properties (MEPDG defaults or computed using LTPP)
- Table 42. MEPDG Default A and VTS Parameters Based on Asphalt PG Grade (AASHTO 2007)
- Table 43. MEPDG Default A and VTS Parameters Based on Asphalt Viscosity Grade (AASHTO 2007)
- Table 44. Recommended Terminal Threshold Distress and IRI (For new asphalt and asphalt overlaid asphalt pavements)
- Table 45. Recommended Terminal Threshold Distress and IRI (for new JPCP and bonded and unbonded JPCP overlays)
- Table 46. Automated Condition Rating Calculations
- Table 47. Recommended Maximum Pavement Service Life
List of Figures
Technical Report Documentation Page
| 1. Report No. | 2. Government Accession No. | 3. Recipient's Catalog No. | |
| 4. Title and Subtitle Pavement Health Track (PHT), Remaining Service Life (RSL) Forecasting Models, Technical Information |
5. Report Date May 28, 2010 | ||
| 6. Performing Organization Code: G923010 | |||
| 7. Author(s) Leslie Titus-Glover, Chuanxin Fang, Maks Alam, Kevin O'Toole, and Michael I. Darter |
8. Performing Organization Report No. | ||
| 9. Performing Organization Name and Address Battelle Memorial Institute, 505 King Avenue Columbus, Ohio 43201 & Applied Research Associates, Inc., 100 Trade Centre Dr., Suite 200 Champaign, IL 61820-7233 |
10. Work Unit No. (TRAIS) | ||
| 11. Contract or Grant No. DTFH61-07-D-00029-T-08001 | |||
| 12. Sponsoring Agency Name and Address Federal Highway Administration Office of Asset Management Washington, D.C. |
13. Type of Report and Period Covered Final Report (10/09 - 05/10) | ||
| 14. Sponsoring Agency Code | |||
| 15. Supplementary Notes COTR: Nastaran Saadatmand |
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| 16. Abstract The objective of this study was to develop for the FHWA, using an off-the-shelf engineering analysis software interface tool architecture, the Pavement Health Track (PHT) Analysis Tool. The PHT Analysis Tool is an engineering software application for determining and reporting the health of pavement networks in terms of the pavement's remaining service life (RSL). The PHT Analysis Tool uses performance models recently developed by FHWA for the Highway Economic Requirements System (HERS) and the National Pavement Cost Model (NAPCOM). These pavement models are based on concepts developed under National Cooperative Highway Research Program (NCHRP) Projects 1-37A and 1-40D and included in the Interim American Association of State Highway and Transportation Officials (AASHTO) Mechanistic-Empirical Pavement Design Guide (MEPDG), making them a simplified version of the more complex mechanistic-empirical (ME) set of models and procedures used in the Interim AASHTO MEPDG. This report presents an overview of the simplified MEPDG models incorporated into the PHT Analysis Tool along with a detailed description of PHT Analysis Tool approaches to determining pavement RSL, guidance on setting up the PHT analysis tool input database from HPMS and other databases, and guidance on setting key parameters for determining overall RSL. |
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| 17. Key Words Pavement performance, mechanistic-empirical, PHT, RSL, HMA, and PCC. |
18. Distribution Statement No restriction. This document is available to the public through the National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161 | ||
| 19. Security Classification (of this report) Unclassified |
20. Security Classification (of this page) Unclassified |
21. No of Pages 66 |
22. Price |
Form DOT F 1700.7 (8-72) Reproduction of completed page authorized
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Updated: 10/18/2012