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Development Of A Trailer To Measure The Noise Generated At The Interface Between Tire And Pavement Surface
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Book Synopsis Development of a Trailer to Measure the Noise Generated at the Interface Between Tire and Pavement Surface by : Abdulhaq Hadi. Abedali Al-Haddad
Download or read book Development of a Trailer to Measure the Noise Generated at the Interface Between Tire and Pavement Surface written by Abdulhaq Hadi. Abedali Al-Haddad and published by . This book was released on 2020 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Noise pollution is another environmental pollutant to be formally recognized as an actual threat to human health and the quality of life. The growth in noise pollution is unsustainable because it involves direct and cumulative adverse health effects. Pavement characteristics are one of the important factors affecting noise generation and propagation. The selection of an appropriate pavement mixture or texture with the proper maintenance efforts is the best method to control the main cause of pavement noise. Therefore, the major objective of this research study was to develop a methodology to evaluate tire-pavement noise. Other objectives were investigating the effect of the pavement surface characteristics on the generation and propagation of the noise of asphalt concrete (AC) and portland cement concrete (PCC) at varying traffic speeds, and finally the development of a statistical model for prediction tire-pavement noise at varying traffic speeds. Field noise measurements were performed using a noise trailer developed in this study and attached to the parent vehicle. Overall, PCC sections with higher skid resistance and lower average texture depth produced the highest noise levels compared with the conventional AC sections; PCC type had an average difference of about 1 dB(A) compared with the AC pavement. The presence of surface distress led to increasing the tire-pavement noise level by 7 dB(A). There were increments of about 1 dB(A) and 7 dB(A) to change vehicle speed from 20 to 40 km/h and from 40 to 60 km/h, respectively. Regarding the measurement period effect on the tire-pavement noise level, tire-pavement noise had an increment of about 7 dB(A) during daytime compared with night.
Book Synopsis Demonstration Project by : Thomas Bennert
Download or read book Demonstration Project written by Thomas Bennert and published by . This book was released on 2004 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Pavement Surface Type on Tire/Pavement Generated Noise by : T. Bennert
Download or read book Influence of Pavement Surface Type on Tire/Pavement Generated Noise written by T. Bennert and published by . This book was released on 2005 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pavement noise evaluations were conducted on 42 pavement surfaces in New Jersey using the Close Proximity Method (CPX) via the NCAT Noise Trailer. The CPX Method is a current ISO Standard that measures sound levels of the tire/pavement interface, thereby providing a method to evaluate solely the influence of pavement surface on traffic noise. The surfaces were comprised of both hot mix asphalt (HMA) and Portland cement concrete (PCC). The HMA surfaces consisted of dense-graded asphalt mixes (DGA), open-graded friction course (OGFC) with and without crumb rubber, stone-mastic asphalt (SMA), NovaChip®, and a microsurfacing slurry mix. The PCC surfaces, pavements and bridge decks, had varying surface treatments consisting of transverse tining, saw-cut tining, diamond grinding, and broom finish. The main focus of the research was to: 1) Evaluate how different pavement surfaces influence the generation of tire/pavement noise, 2) Evaluate the effect of vehicle speed on the tire/pavement generated noise, and 3) Provide guidance as to the repeatability of the CPX method and optimal test distance on the roadway to aid in maximizing testing efficiency.
Book Synopsis Federal Surface Vehicle Noise Research, Development, and Demonstration Programs: FY73-FY75 by : Interagency Surface Vehicle Noise Research Panel
Download or read book Federal Surface Vehicle Noise Research, Development, and Demonstration Programs: FY73-FY75 written by Interagency Surface Vehicle Noise Research Panel and published by . This book was released on 1975 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acoustic Characteristics of Roadway Surfaces by : James D. Chalupnik
Download or read book Acoustic Characteristics of Roadway Surfaces written by James D. Chalupnik and published by . This book was released on 1988 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tyre, Road Noise written by Ulf Sandberg and published by . This book was released on 2002 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide for Pavement Friction written by and published by AASHTO. This book was released on 2008 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains guidelines and recommendations for managing and designing for friction on highway pavements. The contents of this report will be of interest to highway materials, construction, pavement management, safety, design, and research engineers, as well as others concerned with the friction and related surface characteristics of highway pavements.
Book Synopsis Use of Tire Noise as a Measure of Pavement Macrotexture by : JJ. Henry
Download or read book Use of Tire Noise as a Measure of Pavement Macrotexture written by JJ. Henry and published by . This book was released on 1975 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: A procedure is described for measuring the near-field tire noise generated by a treadless tire operating at specified fixed conditions. Analysis of the noise spectra indicates that they are dependent on pavement macrotexture and that certain characteristics of the spectra appear to correlate with skid number-speed gradient as deduced from locked wheel skid tests. Third-octave spectral analyses are shown for a treadless tire operating at 40 mph over seven test surfaces having different macrotextures. A tentative correlation of the sound pressure level of the tire noise for the thirdoctave with center frequency at 1600 Hz, and the skid number-speed gradient is presented. The investigation suggests the feasibility of tire noise measurements as a practical means of pavement skid resistance appraisal in a normal highway traffic environment.
Author :National Research Council (U.S.). Highway Research Information Service Publisher : ISBN 13 : Total Pages :1090 pages Book Rating :4.3/5 (91 download)
Book Synopsis HRIS Abstracts by : National Research Council (U.S.). Highway Research Information Service
Download or read book HRIS Abstracts written by National Research Council (U.S.). Highway Research Information Service and published by . This book was released on 1976 with total page 1090 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measuring Tire-pavement Noise at the Source by : Paul R. Donavan
Download or read book Measuring Tire-pavement Noise at the Source written by Paul R. Donavan and published by Transportation Research Board. This book was released on 2009 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction -- Literature search -- Evaluation of alternative test methods -- Evaluation of OBSI Test Parameters -- Demonstration Testing of OBSI Procedure -- Conclusions, recommendations and suggested research -- References -- Attachment -- Appendices.
Book Synopsis Use of Vehicle Noise for Roadway Distress Detection and Assessment by : Yiying Zhang
Download or read book Use of Vehicle Noise for Roadway Distress Detection and Assessment written by Yiying Zhang and published by . This book was released on 2014 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work evaluates the pavement surface condition and detects the pavement subsurface delamination through vehicle noise collected by microphones mounted underneath a moving vehicle. Such measurements will include tire-generated sound, which carries much information about the road condition, as well as noise generated by the environment and vehicle. A careful frequency analysis of the vehicle noise is carried out to localize the frequency range for surface characteristics and subsurface delamination respectively. The Principal Component Analysis (PCA) method is applied to differentiate important information about the road condition from noisy data contributions collected while the vehicle is moving. The analysis begins with acoustic pressure measurements made over constant and known road conditions. Fourier transforms are taken over various time windows and a PCA is performed over the resulting vectors, yielding a set of principal component vectors for the road condition. The condition of each road section is characterized by a set of principal component vectors. Pavement macrotexture Mean Texture Depth (MTD) is predicted from the principal component vector and then projected to the overall pavement condition index (PCI) as well as the pavement friction and uniformity evaluation. Pavement subsurface delamination is also detected from the principal component vector. The significant accomplishments of this study are as follows: (1) localize the frequency ranges of vehicle noise related to pavement surface and subsurface features respectively; (2) demonstrate the potential for PCA to reduce noise and illustrate the procedure to apply PCA in frequency domain for noise filtering; (3) find the relationship between MTD, sound pressure and driving speed; (4) optimize the microphone placement for data collection for the MTD prediction; (5) develop a calibration-free method for the MTD prediction with an error of 16%; (6) use the predicted Equivalent MTD found by the PCA Energy Method to explore pavement friction prediction, construction non-segregation evaluation, and the contribution to PCI prediction from the acoustic aspect; (7) differentiate the stiffness of the top layer pavement within 10 cm of surface from tire/road noise, and (8) detect the subsurface delamination from the shift of frequency in peak sound pressure level.
Book Synopsis Evaluation of Pavement Friction Characteristics by : John Jewett Henry
Download or read book Evaluation of Pavement Friction Characteristics written by John Jewett Henry and published by Transportation Research Board. This book was released on 2000 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis report will be of interest to pavement design, construction, management, and research engineers, highway safety officials, and others concerned with pavement friction characteristics. It describes the current state of the practice and discusses the methods used for evaluating wet pavement friction characteristics of new and restored pavements. This synthesis reviews models used for measuring and evaluating friction and texture, causes for friction changes over time, and aggregate and mix design to provide adequate friction. Also presented are construction and surface restoration practices for providing good pavement surface characteristics. In addition, considerations of noise and ride quality are discussed when compromise may be required.
Book Synopsis Automobile Tire Noise: Results of a Pilot Study and Review of the Open Literature; Final Report by : William A. Leasure
Download or read book Automobile Tire Noise: Results of a Pilot Study and Review of the Open Literature; Final Report written by William A. Leasure and published by . This book was released on 1975 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Truck Noise I-C -- Pavement Surface Effects on the Generation of Truck Tire Noise. Final Report by : R. D. Kilmer
Download or read book Truck Noise I-C -- Pavement Surface Effects on the Generation of Truck Tire Noise. Final Report written by R. D. Kilmer and published by . This book was released on 1975 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tyretech, the Major International Tyre Technology Conference by :
Download or read book Tyretech, the Major International Tyre Technology Conference written by and published by . This book was released on 1995 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Review of Comparative Studies of Tire/road Noise Measurements on Drums and Roads by : Ulf Sandberg
Download or read book Review of Comparative Studies of Tire/road Noise Measurements on Drums and Roads written by Ulf Sandberg and published by . This book was released on 1983 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tire Rolling Noise in Dry and Wet Conditions on Pavement Surfaces of Different Skid Resistance by : E. Köhler
Download or read book Tire Rolling Noise in Dry and Wet Conditions on Pavement Surfaces of Different Skid Resistance written by E. Köhler and published by . This book was released on 1983 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: When investigating tire rolling noise it is imperative that driving safety must not be neglected. For this reason, noise measurements with a single-wheel measuring trailer on very different dry and wet road surfaces are accompanied by skid coefficient measurements in wet conditions using the Stuttgart friction meter. Included in the investigations are a large number of tires with standard and special tread patterns (steel-belted tires for passenger cars). The hydroplaning behavior of these tires is additionally examined by traction coefficient measurements in wet conditions on an inside drum tester. The results indicate that, particularly on a dry road surface, the often-quoted conflict of goals between lowering tire rolling noise on the one hand and reducing driving safety on the other does not exist since it is possible for comparatively quiet road surfaces to have excellent grip in the wet. Furthermore, the results on the inside drum tester show when compared with the on-the-road noise measurements that there is a distinct correlation between improving the hydroplaning behavior and reducing the rolling noise of the tires investigated.
