The report is the 18th in a series of annual reports on inventories of research and development projects conducted by governmental, academic and commercial research organizations in 56 countries, as reported by surveyors of the International Road Federation, the International Road Research Documentation program of the OECD, and the HRIS. It is the only publication that reports world-wide information on current research activities in the highway field. The report lists 9,809 projects, classified in accordance with the subject area classification system of the Transportation Research Board.


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