U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590

Skip to content
Facebook iconYouTube iconTwitter iconFlickr iconLinkedInInstagram

Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

This report is an archived publication and may contain dated technical, contact, and link information
Publication Number: FHWA-HRT-04-032

Key Findings From LTPP Analysis 2000-2003

PDF Version (324 KB)

PDF files can be viewed with the Acrobat® Reader®


U.S. Department of Transportation
Federal Highway Administration
Research, Development, and Technology
Turner-Fairbank Highway Research Center
6300 Georgetown Pike
McLean, VA 22101-2296

Table of Contents

  1. Introduction

  2. Site Conditions
    • Traffic
    • Climate
    • Subgrade/Foundation

  3. Structural Features
    • Rigid Pavements
    • Flexible Pavements
    • Guide to Pavement Layer Thickness Data

  4. Material Characterization
    Backcalculation of
    • Pavement Layer
    • Material Properties
    • FWD Data for Quality Control/Quality Assurance Measure

  5. Initial Roughness
    • Findings from Specific Pavement Studies
    • Findings from General Pavement Studies

  6. Pavement Maintenance
    • Maintenance of Rigid Pavements
    • Maintenance of Flexible Pavements

  7. Pavement Rehabilitation
    • Rehabilitation of Rigid Pavements
    • Rehabilitation of Flexible Pavements

  8. Local Calibration of the 2002 Pavement Design Guide

  9. Selected LTPP Reports