Results 211 to 220 of about 1,698 (258)
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Stochastic modelling of pavement roughness
Proceedings of 28th Southeastern Symposium on System Theory, 2002Pavement roughness is usually characterized by a one figure statistic of pavement profile data. This approach discards a rich body of useful pavement information in the pavement profile data. In this study, informative parametric models for pavement roughness are developed where pavement roughness is treated as a stochastic signal.
J.J. Zhu, null Wenli Zhu
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Pavement Roughness Measurement and Evaluation
1971Vertical accelerations of a passenger in an automobile are automatically summed while traveling a section of road at 51.5 mph. A roughness index is obtained by summing the accelerations and dividing by the time elapsed during the test. The index is subjectively related to the riding quality of pavements.
Rizenbergs, Rolands L. +2 more
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Pavement Roughness In Kentucky
1982Over two hundred pavement sections in Kentucky have been periodically measured for pavement roughness over a period of several years. This pavement service-life historical data can be used to assess quality of construction, pavement service-life, present and anticipated pavement condition.
Sharpe, Gary W. +4 more
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Investigation of the effect of pavement roughness on crash rates for rigid pavement
Journal of Transportation Safety & Security, 2015ABSTRACTPavement roughness may have a significant impact on traffic safety, but its effect on the overall safety problem needs to be studied and quantified. This article investigates the relationship between International Roughness Index (IRI) and crash rates by looking into traffic safety performance over time under changing pavement conditions ...
Ahmed Elghriany +3 more
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1962
Road roughness testing in Kentucky was first reported in 1949 (1). At that time, emphasis was placed on localized irregularities in pavement profiles detectable by a roller-type straight edge. The experience gained then pointed to the necessity for making a fast, continuous recording of characteristics of the road which would be more closely related to
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Road roughness testing in Kentucky was first reported in 1949 (1). At that time, emphasis was placed on localized irregularities in pavement profiles detectable by a roller-type straight edge. The experience gained then pointed to the necessity for making a fast, continuous recording of characteristics of the road which would be more closely related to
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Rough Set Theory in Pavement Maintenance Decision
2009The decision tree models based on pavement experts' experiences are usually used to derive pavement maintenance decisions. Because experiences are very difficult to obtain completely, some importance condition attributes in decision tree model are easily to be lost.
Ching-Tsung Hung +3 more
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Influence of Pavement Roughness on Tire Noise
Noise Control and Acoustics, 1999Abstract In this study, the influence of the levels of pavement roughness on tire noise is examined using Nearfield Acoustical Holography (NAH) to measure noise from single tires mounted on a two-wheel trailer towed over different types of pavements.
Richard J. Ruhala, Courtney B. Burroughs
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Impact of subgrade soils on pavement roughness
Canadian Geotechnical Journal, 2016To highlight the impact of subgrade soil variability on the pseudo-profile and roughness at the end of road construction, a research program has been carried out at the Laboratoire sur les chaussées et matériaux bitumineux at École de technologie supérieure (ÉTS).
Michel Vaillancourt, Daniel Perraton
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Spectral Analysis of Highway Pavement Roughness
Journal of Transportation Engineering, 1991This paper reports new findings in the spectral analysis of pavement roughness. Elevation profiles of federal and interstate highways were measured with a profilometer, and spectral analysis was used to compute power spectral densities for the longitudinal elevation of pavements.
Jorge Marcondes +3 more
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Modeling for pavement roughness using the ANFIS approach
Advances in Engineering Software, 2013The term ''present serviceability'' was adopted to represent the momentary ability of pavement to serve traffic, and the performance of the pavement was represented by its serviceability history in conjunction with its load application history. Serviceability was found to be influenced by longitudinal and transverse profile as well as the extent of ...
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