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Book Executive Summary for Establishing Relationships Between Pavement Roughness and Perceptions of Ride Quality and Acceptability

Download or read book Executive Summary for Establishing Relationships Between Pavement Roughness and Perceptions of Ride Quality and Acceptability written by Arun Garg and published by . This book was released on 1987 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Measuring Road Roughness and Its Effects on User Cost and Comfort

Download or read book Measuring Road Roughness and Its Effects on User Cost and Comfort written by Thomas D. Gillespie and published by ASTM International. This book was released on 1985 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Transportation Research Record

Download or read book Transportation Research Record written by and published by . This book was released on 1997 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book HRIS Abstracts

Download or read book HRIS Abstracts written by and published by . This book was released on 1990 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Public Perceptions of the Midwest s Pavements

Download or read book Public Perceptions of the Midwest s Pavements written by and published by . This book was released on 2001 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Pavement Roughness and Rideability

Download or read book Pavement Roughness and Rideability written by and published by . This book was released on 1964 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Public Perception of Pavement Rideability

Download or read book Public Perception of Pavement Rideability written by Scott Everett Arterburn and published by . This book was released on 1990 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: To evaluate the public perception of pavements in Colorado, 24 individuals were driven over 69 pavement sections in the Denver Metro area. These individuals were asked to rate the pavement based on rideability and to determine whether that ride was acceptable or unacceptable. The 69 pavement sections that were rated include: 51 bituminous and 18 concrete sections, urban and rural roads, and 35 and 55 mph speed limits. These ratings were then scaled from 0 to 5, with 5 being the best ride. Using regression analysis, the scaled ratings were compared to the roughness of the pavement. The pavement roughness was measured by the Colorado Department of Highways using a Mays Index. The conclusions are: for bituminous pavements 10% of the public is unhappy at a present serviceability index of 2.50; for concrete pavements 10% of the public is unhappy at a present serviceability index of 2.21; and the public will tolerate rougher roads at slower speeds.

Book Highway Research Abstracts

Download or read book Highway Research Abstracts written by and published by . This book was released on 1994 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Relating Ride Quality and Structural Adequacy for Pavement Rehabilitation and Management Decisions

Download or read book Relating Ride Quality and Structural Adequacy for Pavement Rehabilitation and Management Decisions written by and published by . This book was released on 2012 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: This TechBrief discusses the relationship between pavement ride quality and structural adequacy. It presents highlights from a literature search and findings from the analysis and comparison of ride quality and structural adequacy data from the Long Term Pavement Performance (LTPP) program. Although a viable relationship between the two parameters could not be established, the lack of correlation is considered of value to pavement management system (PMS) practitioners, as it indicates that good ride quality does not mean good structural support or vice versa. This becomes an important consideration for those who want to base performance measures on ride quality indicators.

Book Relationships Between Vehicle Speed Ride Quality and Road Roughness

Download or read book Relationships Between Vehicle Speed Ride Quality and Road Roughness written by WDO Paterson and published by . This book was released on 1985 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The relationship of vehicle response to road roughness and speed is quantified from two major data sets obtained from response-type roughness measuring systems used in Brazil. The average rectified slope and average rectified velocity (ARV) response statistics are expressed in terms of speed and a reference roughness scale in a generalized relationship applicable to most road surfaces. Corrugated surfaces require explicit analysis. The effect of road roughness on average traffic speed, that is, the driver's response, is quantified as a function of the vehicle's ARV response and vehicle type; the limiting values estimated for six vehicle classes range from 150 to 280 mm/s. The issues of roughness measurement speed, a reference speed for a universal roughness scale, and the relationship between road roughness and vehicle operating costs are discussed.

Book Evaluating the Relationship Between Pavement Roughness and Crash Incidences

Download or read book Evaluating the Relationship Between Pavement Roughness and Crash Incidences written by Kuvleshay Patel and published by . This book was released on 2007 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing number of crashes has been a major concern to safety engineers and planners nationwide. The State of North Carolina, which has seen more than 220,000 reported crashes per year during last three years, is no exception in this regard. The state and local agencies are spending a lot of money to improve road safety and mobility on North Carolina roads. Several studies have been carried out to better understand the causes of road crashes to pro- actively apply safety treatments. Pavement roughness is a factor that influences ride quality. A low value of pavement roughness may result in low friction or rolling resistance whereas a high value may affect ride quality and reduces the ability to control the vehicle at high speeds. Thus, it should not be too low or too high. This study focuses on evaluating the relationship between pavement roughness and occurrence of the road crashes. Pavement profile data collected by NCDOT (North Carolina Department of Transportation) using laser profilometer on 5 selected corridors in used to evaluate the relationship. Pavement roughness is determined in terms of IRI (International Roughness Index) using ProVAL (Profile Viewing and Analysis) software. Scatter plots and bivariate analysis indicate that a reasonably strong relationship exists between pavement roughness and crashes. In general, results show that the number of crashes decreases as pavement roughness increases. Multivariate analysis considering predictor variables such as traffic volume data, length, and roadway features data along with pavement roughness showed mixed results.

Book Advances in Transportation Geotechnics IV

Download or read book Advances in Transportation Geotechnics IV written by Erol Tutumluer and published by Springer Nature. This book was released on 2021-08-30 with total page 971 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents selected papers presented during the 4th International Conference on Transportation Geotechnics (ICTG). The papers address the geotechnical challenges in design, construction, maintenance, monitoring, and upgrading of roads, railways, airfields, and harbor facilities and other ground transportation infrastructure with the goal of providing safe, economic, environmental, reliable and sustainable infrastructures. This volume will be of interest to postgraduate students, academics, researchers, and consultants working in the field of civil and transport infrastructure.