The international road roughness experiment : establishing correlation and a calibration standard for measurements - Sayers, M. W.; Gillespie, T. D.; Queiroz, Cesar A. V.; University of Michigan (Washington, D.C. : World Bank, 1986)
"A collaborative study undertaken by The University of Michigan Transportation Research Institute ... [et al.]."
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Keywords: MCE; Roads -- Riding qualities -- Measurement; Surface roughness -- Measurement