What Makes Portland Cement Concrete (PCC) Pavements Rough?

1998Richter, CherylPDFTech Reporthttps://www.fhwa.dot.gov/pavement/pub_details.cfm?id=112FHWA-RD-98-148DTFH61-95-C00124Pavement designConcrete pavementsRoughnessPavement performanceContinuously reinforced concrete pavementsClimateSubgrade (Pavements)United StatesUnited States. Federal Highway Administration. Office of Research and DevelopmentUnited States. Federal Highway Administration. Office of Research and DevelopmentSoil and Materials Engineers, Inc.Richter, Cheryl AllenFederal Highway AdministrationRoughness is widely regarded as the most important measure of pavement performance. To better understand how and why roughness occurs in pavements, Long Term Pavement Performance (LTPP) program recently completed a study entitled, "Investigation of Development of Pavement Roughness". A component of the study investigated the changes in three types -- Jointed Plain Concrete Pavement, Jointed Reinforced Concrete Pavement, and Continuously Reinforced Concrete Pavement -- of Portland Cement Concrete (PCC) pavement roughness over time and its relationship to design factors, subgrade conditions, and climatic conditions.80