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Manual developed to provide a consistent, uniform basis for collecting distress data on the LTPP program. The manual provides a common language for describing cracks, potholes, rutting spalling, and other pavement distresses.
Falling Weight Deflectometer (FWD) calibrations are critical for highway monitoring activities. FWDs must be calibrated and used properly, otherwise, measurements will be inaccurate. A first generation FWD calibration system was developed in the early 1990s for the Strategic Highway...
Products derived from the Long-Term Pavement Performance (LTPP) program have been made available to State departments of transportation and other segments of the highway community since the early years of the program. Initially, these were methods, guidelines, and procedures for standardized...
The Long-Term Pavement Performance (LTPP) Program data analysis projects takes the raw data collected from the program's more than 2,500 pavement test sections and converts them into useable information. The projects address a broad array of topics—from field validation of pavement design...
FHWA's bridge and structures research and development provides technologies and solutions to advance the state-of-the-art and practice in highway infrastructure engineering. FHWA's bridge and structures research is carried out as an integral part of FHWA's broader Infrastructure Research and...
Launched in 2014, the Long-Term Pavement Performance (LTPP) InfoPave™ web portal is the public gateway to access data and other information about the program. The web portal is designed...
Data collection and management are core functions of the Federal Highway Administration's Long-Term Pavement Performance (LTPP) Program. They are also a shared function between LTPP and the States and Provinces. LTPP maintained four regional offices—North Atlantic, North Central, Southern, and...
Below is a description of each of the Specific Pavement Study (SPS) experiments. When constructing SPS projects, States and Provinces had the option of adding sections of particular interest to them. The data for these supplemental sections are not generally available. Please contact the...
Following is a description of each of the General Pavement Study (GPS) experiments:
Sections in this experiment include a dense-graded hot mix asphalt concrete (HMAC) surface layer, with or without other HMAC layers...
The Long-Term Pavement Performance (LTPP) program monitors more than 2,500 asphalt and portland cement concrete (PCC) pavement test sections throughout the United States and Canada. A total of 934 LTPP test sections contain the common types of pavement in use in the United States (...