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Michigan Local Agency 2018 Treatment Life Study Project Team: - PowerPoint PPT Presentation

Mar 14, 2023 •27 likes •347 views

Michigan Local Agency 2018 Treatment Life Study Project Team: Peter Torola, PE, Research Engineer Tim Colling, PhD, PE, Director Victoria Sage, Report Technical Editor Peter Torola, PE Agenda Definitions Key Finding ESL Background Study

  1. Michigan Local Agency 2018 Treatment Life Study Project Team: Peter Torola, PE, Research Engineer Tim Colling, PhD, PE, Director Victoria Sage, Report Technical Editor Peter Torola, PE

  2. Agenda Definitions Key Finding ESL Background Study Overview Results

  3. Critical Distress Point 10 9 8 7 PASER Rating 6 5 4 CDP 3 2 1 1 5 10 15 20 25 30 Years

  4. Extended Service Life 10 9 8 7 PASER Rating 6 5 ESL 4 CDP 3 2 1 1 5 10 15 20 25 30 Years

  5. Key ESL Finding 4.1 years Chip Seal Chip Seal + Fog 7.1 years

  6. Roadsoft Tool Background

  7. Needed ESL Calculator Updates

  8. Needed ESL Calculator Updates

  9. Measuring ESL: Actual vs. Modeled

  10. Other Studies use Aggregate Modeling Techniques Y=1.2334 e 0.3345X 10 9 Y=1.454 e 0.15X 8 7 PASER RATING 6 5 4 CDP 3 2 1 1 5 10 15 20 25 30 Years

  11. We used Individual Element Modeling

  12. Why don’t more people use this method for analysis?

  13. Study Data Selection Criteria • Asphalt pavements • Federal aid eligible roads • 1st applied treatment ever or after a heavier treatment • 3 rating points before and after treatment • Only rating data prior to 2000

  14. Data That Met Criteria

  15. 14 Treatments Meeting Criteria Cape Seal Chip Seal Chip Seal + Fog Microsurface Slurry Seal Thin Overlay Cold in Place (CIP) + Overlay Crush & Shape Hot in Place (HIP) HIP + Overlay HMA Wedge + Chip Seal HMA Wedge + Overlay Thick Overlay Reconstruction

  16. 5 Treatments with Enough Data Chip Seal Chip Seal + Fog Thin Overlay Crush & Shape Thick Overlay

  17. Seal Coat (Chip Seal)

  18. Chip Seal Results

  19. Chip Seal + Fog Seal

  20. Chip With Fog

  21. Thin Asphalt Overlay

  22. Thin Asphalt Overlay

  23. Crush and Shape

  24. Crush and Shape

  25. Thick Asphalt Overlay

  26. Thick Asphalt Overlay

  27. Zero or Low ESL Gain?

  28. Age VS Load Related Distress

  29. Other Variables Legal System National Function Class Lanes Region

  30. Region Breakdown Chip Seal Thick Overlay

  31. Points To Take Away Study looked at worst case analysis for ESL Local agencies are collecting high quality data Local agencies gain significant benefit with treatments Cost effective analysis should drive practice You have the data and tools to do this yourself

  32. Contact Information www.michigan.gov/tamc 906-487-2102 roadsoft@mtu.edu LTAP@mtu.edu www.roadsoft.org www.MichiganLTAP.org

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