LTPP: Long-Term Pavement Performance program

About LTPP

Understanding "why" some pavements perform better than others is key to building and maintaining a cost-effective highway system. That's why in 1987, the Long-Term Pavement Performance (LTPP) program - a comprehensive 20-year study of in-service pavements - began a series of rigorous long-term field experiments monitoring more than 2,400 asphalt and portland cement concrete pavement test sections across the U.S. and Canada.

LTPP has recently added a forum for discussion at the FHWA Highway Community Exchange. Please take a look and feel free to post a question or discussion item!

How to Get LTPP Data, contact LTPP Customer Support Service at ltppinfo@dot.gov, new phone (202) 493-3035.

LTPP Technical Services Contractor and Regional and Other Important Links

The LTPP Newsletter

Publications

• Impact of Design Features on Pavement Response and Performance in Rehabilitated Flexible and Rigid Pavements,
  FHWA-HRT-10-066 2011 [PDF]
• LTPP Computed Parameter: Dynamic Modulus,
  FHWA-HRT-10-035 2011 [PDF]
• Results of Long-Term Pavement Performance SPS-3 Analysis: Preventive Maintenance of Flexible Pavements,
  FHWA-HRT-11-049 2011 [PDF]
• Statistical Analysis of Performance of Recycled Hot Mix Asphalt Overlays in Flexible Pavement Rehabilitation,
  FHWA-HRT-11-051 2011 [PDF]
• Performance Comparison of Pavement Rehabilitation Strategies,
  FHWA-HRT-11-050 2011 [PDF]
• Techbrief: LTPP Computed Parameter: Dynamic Modulus,
  FHWA-HRT-11-018 2011 [PDF]
• LTPP Specific Pavement Studies (SPS) Materials Action Plan Final Report,
  FHWA-HRT-10-049 2010 [PDF]
• LTPP Pavement Performance Forecast,
  FHWA-HRT-10-080 2010 [PDF]
• LTPP Specific Pavement Studies (SPS) Materials Action Plan Final Report,
  FHWA-HRT-10-049 2010 [PDF]
• Long-Term Pavement Performance Program Highlights: Accomplishments and Benefits 1989-2009,
  FHWA-HRT-10-071 2010 [PDF]

Features

• 2012 LTPP Data Analysis Contest
• Calibrating the Falling Weight Deflectometer (FWD) Video
• LTPP Newsletter, Fall 2011
• LTPP Standard Data Release #26

Table of contents

Home

•  

• Data Collection

  • GPS Experiments:
  • SPS Experiments:
  • Additional Studies:
  • Data Collection:
  • How to Get LTPP Data:
  • Materials Reference Library:
  • FWD Calibration Centers:
•  

• Analysis

•  

• Products

  • DataPave
  • Distress Identification Manual for the Long-Term Pavement Performance Program (Fourth Revised Edition)
  • FWD Calibration
  • LTPP Product List
  • LTPPBind
  • Pavement Manuals of Practice
  • Product Briefs
  • Product Plan
  • Product Information Sheet (Napkin)
  • Resilient Modulus
  • Rigid Pavement Design Software
•  

• Pooled Fund Studies

  • TPF-5 (004), Long-Term Pavement Performance (LTPP) Specific Pavement Study (SPS) Traffic Data Collection
  • TPF-5 (013), Effect of Multiple Freeze-Thaw Versus Deep Frost Penetration on Pavement Performance
  • TPF-5 (039), Falling Weight Deflectometer (FWD) Calibration Center and Operational Improvements
  • TPF-5 (063), Improving the Quality of Profiler Measurement
•  

• Operations/Analysis Feedback Reports

  • Distress
  • Drainage
  • Falling Weight Deflectometer (FWD)
  • Friction
  • General Pavement Studies (GPS)
  • Information Management System (IMS)
  • Materials
  • Profile
  • Seasonal Monitoring Program (SMP)
  • Specific Pavement Studies (SPS)
  • Traffic
•  

• LTPP Customer Survey

•  

• Contacts LTPP