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Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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

Overview

 

Research and Development (R&D) Project Sites

Project Information
Project ID:   FHWA-PROJ-09-0045
Project Name:   Development of New Default Traffic Datasets for the Mechanistic-Empirical Pavement Design Guide Using the Data from Long-Term Pavement Performance Specific Pavement Study Traffic Data Collection Pooled Fund Study, TPF-5(004)
Project Status:   Completed
Start Date:  September 30, 2009
End Date:  May 30, 2012
Contact Information
Last Name:  Walker
First Name:  Deborah M
Telephone:  202-493-3068
E-mail:  deborah.walker@dot.gov
Office:   Office of Infrastructure Research and Development
Team:   Long-Term Pavement Performance Team [HRDI-30]
Program:   Long-Term Pavement Performance
Project detail
Roadmap/Focus area(s):   Infrastructure Research and Technology Strategic Plan and Roadmap
Project Description:   The default traffic datasets for the National Cooperative Highway Research Program (NCHRP) Project 1-37A (the MEPDG) were based on the Long-Term Pavement Performance (LTPP) traffic data available in 1998. According to the 1999 interim report, “The Development of the 2002 Guide for the Design of New and Rehabilitated Pavement Structures,” the quantity and quality of these data were less than expected. Since that time, the LTPP Traffic Data Collection Pooled Fund Study, Transportation Pooled Fund (TPF)-5(004), has greatly increased the quality and quantity of traffic data available through LTPP.
Goals:   Many pavement construction projects cannot justify the collection of site-specific weigh-in-motion (WIM) data solely for design purposes. Therefore, use of WIM data from other sites or default traffic values is not uncommon. The Mechanistic-Empirical Pavement Design Guide (MEPDG) is sensitive to traffic inputs and the existing default traffic values are inadequate. This project will rectify this situation with the high-quality traffic data now available from the Long-Term Pavement Performance (LTPP) project.
Product Type:   Data
Research report
Software
Techbrief
Test Methodology:   This project will use the traffic data collected from the Specific Pavement Study (SPS) sites to develop new traffic defaults for States to use in implementing the Mechanistic-Empirical Pavement Design Guide (MEPDG).
Other Information:   LTPP Analysis Plan | Objective 1 | Outcome B | Project 2 | Priority Critical | Sequence 2
Partners:   Federal Highway Administration: Office of Policy and Governmental Affairs - Office of Highway Policy Information; Role(s): Advisory, Technical
Expected Benefits:   The expected benefit is new traffic default datasets for the Mechanistic-Empirical Pavement Design Guide.
Deliverables: Name: New Traffic Default Datasets
Product Type(s): Research report, Software, Data, Techbrief
Description: This project will use the data from the Long-Term Pavement Performance (LTPP) Specific Pavement Study (SPS) Traffic Data Collection Pooled Fund Study to develop new default datasets for the Mechanistic-Empirical Pavement Design Guide (MEPDG).
Publication URL(s):
http://www.fhwa.dot.gov/pavement/pub_details.cfm?id=898
FHWA Topics:   Roads and Bridges--Design
TRT Terms:   Weigh in Motion
Infrastructure
Research
Pavements
Traffic
Roads
Measuring Methods
FHWA Disciplines:   Design
Pavement and Materials
Planning
Subject Areas:   Data and Information Technology
Design
Highways
Pavements
Research

 

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