Triggers and Timings for the Placement of Pavement Preservation Treatments for Asphalt Pavements

Pavement preservation is an increasingly widespread practice among agencies interested in extending the lives of their pavements in a cost-effective manner. Commonly stated challenges to the success of this practice include identifying good candidate pavements, selecting the best preservation treatments for those pavements, and the related challenge of placing the treatments at the best time. This proposed research specifically addresses the last challenge--treatment triggers and timings--although its successful completion will also provide insights into improved project selection and treatment selection practices. It is acknowledged that there are a number of different approaches that are followed to identifying when to apply preservation treatments to asphalt pavements. These include (1) condition-based, in which one or more distresses trigger a treatment; (2) rating-based, in which an overall rating or rating range (such as a rating between 70 and 85) triggers a preservation action (but not a specific treatment); and (3) timing-based, in which treatments are applied according to a predetermined cycle, such as every 2, 5, or 10 years. There is clearly an opportunity to improve pavement preservation practices on asphalt pavements by collecting information and documenting practices that will strengthen the link between various triggers that identify a pavement as a good candidate for preservation and the placement of appropriate treatments. It is believed that this will contribute to the improved performance of preservation treatments. As such, the objective of this study is to document the range of triggers that are used to successfully identify when an asphalt pavement is a good candidate for pavement preservation. A secondary objective is to demonstrate various uses of these triggers in pavement preservation programs. The objective of this research is to develop a manual that identifies pavement condition based and non-condition based triggers for pavement preservation treatments. The study is envisioned to be conducted in two phases comprising seven tasks. Phase I: (1) Literature review, (2) Assessment of agency practices, (3) Draft and final report. Phase II: (4) Recommendations for case study agencies, (5) Conduct case studies, (6) Draft guidelines, (7) Draft and revised final report.


  • English


  • Status: Proposed
  • Funding: $350000.00
  • Contract Numbers:

    Project 14-38

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials (AASHTO)

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Hanna, Amir

  • Start Date: 20150806
  • Expected Completion Date: 0
  • Actual Completion Date: 0
  • Source Data: RiP Project 40209

Subject/Index Terms

Filing Info

  • Accession Number: 01572390
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 14-38
  • Files: TRB, RiP
  • Created Date: Aug 7 2015 1:01AM