Skip to contentUnited States Department of Transportation - Federal Highway AdministrationSearch FHWAFeedback


Publication Details

Researcher's Guide to the Long-Term Pavement Performance Layer Thickness Data

General Interest: provides practical guidance to engineers responsible for the day-to-day design, construction, rehabilitation, maintenance, and management of pavements.

Primary Topic: Pavement Maintenance

Description: This guide summarized the layer material type and thickness data structure in the Long-Term Pavement Performance (LTPP) database. Summaries of layer thickness within-section data variablility and constructed thickness deviations from the target thickness are also provided for LTPP sections; the guide provides several benchmark values for both of these data elements for different material types. Guidelines are also presented to search for the most appropriate thickness information for different research purposes.

FHWA Publication Number: FHWA-RD-03-040

Publication Year: 2002

Document Links: HTML 

View Pavement Publications

Updated: 02/20/2015

United States Department of Transportation - Federal Highway Administration