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14-633: LTPP program was initiated by the Transportation Research Board (TRB) of the National Research Council (NRC) in the early 1980s. The FHWA with the cooperation of the American Association of State Highway and Transportation Officials (AASHTO) sponsored the program. The program was focusing on examining the deterioration of the nation’s highway and bridge infrastructure system. In the early 1980s, TRB and NRC suggested that

28-470: A "Strategic Highway Research Program (SHRP)" should be started to concentrate on research and development activities that would majorly contribute to highway transportation improvement. Later in 1986, the detailed programs were published entitled "Strategic Highway Research Program—Research Plans". The LTPP program collects data from in-service roads and analyzes it as planned by the SHRP. The LTPP aims to understand

42-422: A federal agency which oversees interstate travel and numerous other transportation agencies. All U.S. states have their own DOTs, responsible for managing and overseeing transportation, transportation-related infrastructure , and transportation safety in their respective states. They provide enforcement through DOT officers within their respective jurisdictions. Though the term "department of transportation"

56-792: Is sponsored by the Federal Transit Administration and carried out under a three-way agreement among the National Academy of Sciences , the Transit Development Corporation, Inc., and the American Public Transportation Association . TRB offers selective research funding, notably, the NCHRP, the ACRP, and TCRP. Each one of these programs has industry leaders who function as references while completing

70-618: The ASCE . The participants are supposed to use the LTPP data. Transportation Research Board The Transportation Research Board ( TRB ) is a division of the National Academy of Sciences, Engineering, and Medicine . TRB's mission is to mobilize expertise, experience, and knowledge to anticipate and solve complex transportation-related challenges. For example, committees, researchers, and staff are currently focused on advancing resilient infrastructure, exploring transformational technology, and caring for

84-677: The Governors Highway Safety Association . The Airport Cooperative Research Program (ACRP) is sponsored by the Federal Aviation Administration . The National Cooperative Highway Research Program (NCHRP), created in 1962, is sponsored by individual state departments of transportation of the American Association of State Highway and Transportation Officials and the Federal Highway Administration . The Transit Cooperative Research Program (TCRP)

98-560: The 1960s, and continues to research across various transportation modes. TRB's varied activities annually draw on over 8,000 engineers, planners, scientists, academics, and other transportation researchers from the public and private sectors, who volunteer expertise in the public interest by participating on TRB committees, panels, and task forces. Additionally, TRB hosts its Annual Meeting in Washington DC every January, gathering approximately 14,000 transportation professionals from across

112-586: The National Academies do not receive direct appropriations from the federal government. Programs receive support from state transportation departments , the various administrations of the U.S. Department of Transportation and other federal agencies, industry associations, and other organizations and individuals interested in the development of transportation. The Cooperative Research Programs receive funding. The Behavioral Traffic Safety Cooperative Research Program (BTSCRP) facilitates projects with support from

126-486: The TRB Annual Meeting attracts thousands of transportation professionals. The Transportation Research Board was established in 1920 as the "National Advisory Board on Highway Research" and changed its name to the "Highway Research Board" from 1925 until 1974, when it was renamed again as the "Transportation Research Board." It has commissioned ad-hoc research since 1950, became more involved in multi-modal transport in

140-948: The United States and around the world. Publications include the Highway Capacity Manual , the Transportation Research Record: Journal of the Transportation Research Board (TRR) which publishes peer-reviewed papers, and a bi-monthly magazine called TR News . A history of transportation research and of TRB was published in January 2020 called The Transportation Research Board, 1920–2020: Everyone Interested Is Invited . Transportation Research Information Services (TRIS) offers several databases for researchers: Although many activities are requested and funded by Congress and federal agencies, TRB and

154-407: The possible reasons behind the poor or good performance of pavements. Hence, the effects of different parameters such as weather, maintenance actions, material and traffic on performance are studied. Data is collected in a timely manner, and then analyzed to understand and predict the performance of roads. It is worth to mention that the LTPP program was transferred from SHRP to FHWA in 1992 to continue

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168-564: The project. Department of Transportation A department of transportation ( DOT or DoT ) is a government agency responsible for managing transportation . The term is primarily used in the United States to describe a transportation authority that coordinates or oversees transportation-related matters within its jurisdiction. In the United States, the largest DOT is the United States Department of Transportation ,

182-420: The public’s health and safety. It publishes research via four cooperative research programs and through consensus studies, which may be requested by the U.S. Congress. As one of seven major divisions of the National Academies of Sciences, Engineering, and Medicine, TRB research is objective and interdisciplinary . TRB hosts nearly 200 standing technical committees that address specific aspects of transport and

196-482: The work. LTPP Data is collected by four regional contractors. New data is regularly uploaded to the online platform every six months. The number of the pavement test sections monitored in the LTPP program is more than 2,500. These pavement sections include both asphalt and Portland cement concrete . Road sections are across different states and provinces of the United States and Canada. The LTPP holds an annual international data analysis contest in collaboration with

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