The Long-Term Pavement Performance (LTPP) program - the largest pavement study ever conducted - is an important source of research quality pavement performance information for the pavement community. LTPP was initiated in 1987 as part of the Strategic Highway Research Program (SHRP). Responsibility for program management was transferred to the Federal Highway Administration (FHWA) in 1992, and FHWA continues to serve in this role. The program has monitored more than 2,500 test sections on in-service highways located throughout the United States and Canada, and data are collected through cooperative efforts of highway agencies and the LTPP program organization. The data collection effort includes inventory, material testing, pavement performance monitoring, climate, traffic, maintenance, and rehabilitation data. The data are subject to an extensive series of quality control checks before being made available to the public, and the data are housed in an information management system - the LTPP database - that is the world's largest pavement performance database. LTPP data has been utilized to provide over $2 billion in savings, and as the program continues to monitor existing test sections and constructs new experiments, it provides enormous potential for development of products to further improve pavement technology for decades to come.
DISCLAIMER: This website is for the database application program "LTPP InfoPave" produced by the LTPP program. The FHWA/LTPP updates the database information on this website periodically. The material contained on this website may have inaccuracies or typographical errors. FHWA/LTPP makes no representations about the accuracy, reliability, completeness, or timeliness of any data or the material on the website. Use of this website and the materials contained on the website is at your own risk. Changes to the website may be made at any time. By using this website, you acknowledge and agree that you are solely responsible for the use of any material and/or data contained herein on this website.
FHWA/LTPP does not warrant that the website will operate error-free or that the website and its server are free of computer viruses or other harmful mechanisms. If your use of the website or the material results in the need for servicing or replacing of equipment or data, FHWA/LTPP is not responsible for those costs.
The website and material are provided on an "as is" basis without warranties. FHWA/LTPP, to the fullest extent permitted by law, disclaims all warranties, whether express or implied. FHWA/LTPP makes no warranties regarding the accuracy, reliability, completeness, or timeliness of the material, services, text, graphics, or links.
LTPP InfoPave was developed by iENGINEERING Corporation in its role as Prime Contractor for FHWA Contract DTFH61-12-D-00009. LTPP InfoPave is currently supported and maintained under FHWA Contract DTFH61-15-D00004.