How To Get LTPP Data

LTPP InfoPave™ 

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...

Long-Term Pavement Performance Collection Process

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...

Specific Pavement Study Experiments

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...

General Pavement Study Experiments

Following is a description of each of the General Pavement Study (GPS) experiments:

GPS-1: Asphalt Concrete (AC) on Granular Base

Sections in this experiment include a dense-graded hot mix asphalt concrete (HMAC) surface layer, with or without other HMAC layers...

LTPP Data Collection

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 (...

Pavement and Materials

Federal Highway Administration's (FHWA's) pavement and materials research and development (R&D) is concerned with all aspects of highway pavement engineering and management, including: long-term performance; structural design; material testing, evaluation, specification; mixture design ...

Human Factors

The purpose of Human Factors research is to understand all road user behavior, to further the understanding of roadway user needs so that those needs can be incorporated in roadway design, construction, repair, and improvement. All of the Federal Highway Association’s (FHWA's) strategies for...

Safety Data and Analysis

The primary purpose of the Safety Data and Analysis (SDA) research focus area, and the program of the same name in the Office of Safety Research and Development, is to provide information and tools to use that information for decisionmakers to maximize the benefits realized by safety initiatives...

Safety R&D Overview

Research Focus Areas

The research focus areas and objectives of the Safety R&D program reflect current Federal Highway Administration strategic focuses.

Safety Data and Analysis...

Deployment/Innovation Delivery

The Federal Highway Administration (FHWA) has embraced a culture of innovation and actively supports and advances innovation across the breadth of FHWA activities. FHWA has woven innovation into its business practices. Innovative technologies are developed at its world class Turner-Fairbank...