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Determination Of Traffic Noise Barrier Effectiveness
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Book Synopsis Determination of Traffic Noise Barrier Effectiveness by :
Download or read book Determination of Traffic Noise Barrier Effectiveness written by and published by . This book was released on 1991 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Federal Highway Administration. Office of Environment and Planning. Noise and Air Quality Branch Publisher : ISBN 13 : Total Pages :76 pages Book Rating :4.:/5 (1 download)
Book Synopsis Highway Traffic Noise Analysis and Abatement by : United States. Federal Highway Administration. Office of Environment and Planning. Noise and Air Quality Branch
Download or read book Highway Traffic Noise Analysis and Abatement written by United States. Federal Highway Administration. Office of Environment and Planning. Noise and Air Quality Branch and published by . This book was released on 1995 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis In-service Experience with Traffic Noise Barriers by : William Bowlby
Download or read book In-service Experience with Traffic Noise Barriers written by William Bowlby and published by Transportation Research Board. This book was released on 1992 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to highway environmental engineers, noise analysts, design engineers, maintenance personnel, planners, administrators, and others responsible for the design, selection, and maintenance of noise barriers or other traffic noise abatement policies. Information is provided on current state practice associated with noise abatement techniques and on the various products that are used. This synthesis describes the state of the art with respect to traffic noise abatement procedures, especially noise barriers. This report of the Transportation Research Board provides information on the design, construction and maintenance of both new (Type I) and retrofit ( Type II) noise barriers. The design elements that are addressed include materials, the selection process, service life, foundations, drainage, aesthetics, and safety. The construction section covers technical problems related to surface effects, durability, snow damage, and costs. Other noise abatement measures such as insulation and highway design alternatives are also addressed. The issue of public demand and availability funding is included, and recommendations are made to improve the situation.
Book Synopsis Potential Effectiveness of Barriers Toward Reducing Highway Noise Exposure on a National Scale by : Kenneth J. Plotkin
Download or read book Potential Effectiveness of Barriers Toward Reducing Highway Noise Exposure on a National Scale written by Kenneth J. Plotkin and published by . This book was released on 1978 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Determination of Insertion Loss and Evaluation of Traffic Noise Barrier Design Method : by : Mark Marsella
Download or read book Determination of Insertion Loss and Evaluation of Traffic Noise Barrier Design Method : written by Mark Marsella and published by . This book was released on 1986 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluating Pavement Strategies and Barriers for Noise Mitigation by : Paul R. Donavan
Download or read book Evaluating Pavement Strategies and Barriers for Noise Mitigation written by Paul R. Donavan and published by Transportation Research Board. This book was released on 2013 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Report 738: Evaluating Pavement Strategies and Barriers for Noise Mitigation presents a methodology for evaluating feasibility, reasonableness, effectiveness, acoustic longevity, and economic features of pavement strategies and barriers for noise mitigation. The methodology uses a life-cycle cost analysis to examine the economic features of mitigation alternatives, the FHWA Traffic Noise Model to integrate the noise reduction performance of pavements and barriers, and on-board sound intensity measurements as an input to the prediction model. The appendixes contained in the research agency's final report provide elaborations and detail on several aspects of the research. The appendixes are not included with the print version of the report, but are available online." --Publisher description.
Book Synopsis Cost-benefit Analysis by : Cori Vanchieri
Download or read book Cost-benefit Analysis written by Cori Vanchieri and published by . This book was released on 2014 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: "EXECUTIVE SUMMARY: At highway speeds, the major source of noise is the interaction between tires and the road surface. Noise barriers have been used by state transportation departments for many years and are the preferred solution for reducing highway traffic noise. Federal Highway Administration regulations for highway traffic and construction noise abatement are included in the Code of Federal Regulations (23 CFR772)1 and currently only consider noise barriers as an abatement measure for highway noise. However, pavement type can considerably reduce the noise generated from tire-road interaction. Yet considering pavement as a noise abatement measure is currently only allowed for pilot projects approved by the Federal Highway Administration. Through the end of 2010, 47 state departments of transportation and the Commonwealth of Puerto Rico have constructed more than 2,748 linear miles of barriers at a cost of close to 5 .5 billion (in 2010 dollars)2 . Treatment of highway pavement is generally less costly than the construction of barriers, but the noise reduction achieved by a quieter pavement is typically less than the reduction from a well-designed barrier, at least for residents in the immediate vicinity of the barrier. However, quieter pavements produce a reduction of noise at the source, which means that it may be possible to increase the number of benefited receptors (the recipient of an abatement measure that receives a noise reduction at or above the highway agency's chosen noise impact threshold value). A combination of barrier and pavement treatment may lead to cost-effective solutions to highway noise. To evaluate effectiveness of quieter pavements, a reliable measurement method for tire/road noise is needed. The method that is currently favored is measuring On-Board Sound Intensity (OBSI). OBSI data are collected in conformance with AASHTO TP-76,3 the American Association of State Highway and Transportation Officials Standard Method of Test for Measurement of Tire/Pavement Noise Using the On-Board Sound Intensity (OBSI) Method. A workshop on cost-benefit analysis of noise barriers and quieter pavements was held on January 16, 2014. One objective of the workshop was to evaluate the National Cooperative Highway Research Program Report 738, "Evaluating Pavement Strategies and Barriers for Noise Mitigation". Report 738 was prepared under Project 10-76, and is typically referred to as NCHRP 10-76.4 The report describes a methodology for the evaluation of both barriers and pavements for noise abatement, and explores how quieter pavement technology can be incorporated into Federal and state noise policy. Three key elements of the method presented in NCHRP 10-76 involve life cycle cost analysis (LCCA), the use of a research version5 of the Federal Highway Administration Traffic Noise Model (TNM), and a method for the evaluation of tire pavement noise reduction, OBSI. This report contains summaries of the presentations given during the workshop and the results of discussions identifying the challenges presented by implementing the NCHRP 10-76 methodology, especially to state departments of transportation, which carry out noise abatement projects in cooperation with the Federal Highway Administration and in conformance with the federal requirements in 23 CFR772. Using LCCA, planners can evaluate the initial cost of abatement using pavement and barriers as well as rehabilitation and maintenance costs. The methodology also incorporates a measure of the effectiveness of the resulting predicted level of traffic noise. Current regulations require impact determination and barrier design to be completed with the public-release version of TNM and average pavement. By using a research version of TNM and OBSI data to refine the tire-pavement interaction noise source, pavement effects could be included in the model (and therefore predictions could be more accurate and pavement type can be considered when assessing noise impact and abatement). Several examples illustrated that the NCHRP 10-76 approach can be successfully applied to real highway project studies. In some situations, a barrier-and-pavement hybrid solution can be more acoustically effective and/or cost effective than a barrier only solution and can allow for additional benefited receptors where a barrier only solution would not be feasible and/or reasonable. Both current regulations and the public- release version of TNM require modification if the noise reduction benefits of pavements are to be realized in construction projects. The noise reduction achieved by sound propagation over sound-absorptive pavement could also be included in the public-release version of TNM. An important part of the workshop, which was attended by noise barrier and pavement experts, as well as representatives from the FHWA and state departments of transportation, was to discuss the challenges of implementing NCHRP 10-76 methodology to state departments of transportation and to develop findings and recommendations based on these discussions. The key elements of these discussions are presented in Chapter 3 of this report. The following recommendations appear in Chapter 4 of this report: Develop and document a noise evaluation process that accounts for both noise barriers and quieter pavements. Provide funding and implement the method presented to evaluate the abatement options on a pilot program basis to help evaluate and improve the process. Upgrade the public release version of TNM to include the OBSI-related pavement assessment capabilities currently available in the research version of TNM. Organize and make publically available national databases for OBSI and LCCA. Expand TNM and highway noise abatement training to include consideration of quieter pavements and enable use of the research version of TNM. Encourage FHWA to develop guidance on the use of quieter pavements and barriers for noise abatement. Incorporate noise performance into a new performance management system. Develop and provide a noise abatement training program for pavement engineering staff. Other presentations from the workshop with important background information relevant to cost benefit analysis, noise barriers, and quieter pavements are summarized in Appendix A. The workshop agenda, the names of the participants, definitions of terms and a list of acronyms are provided in Appendix B, Appendix C, and Appendix D."
Book Synopsis Effectiveness of Noise Barriers Installed Adjacent to Transverse Grooved Concrete Pavement by : Lloyd Allen Herman
Download or read book Effectiveness of Noise Barriers Installed Adjacent to Transverse Grooved Concrete Pavement written by Lloyd Allen Herman and published by . This book was released on 2009 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years the Ohio Department of Transportation (ODOT) has reconstructed a number of roadways where asphalt pavements were replaced with random transverse grooved concrete pavements. Upon completion, residents living adjacent to the reconstructed roadways have complained of increased noise levels. The Federal Highway Administration (FHWA) Traffic Noise Model (TNM) is used to determine if predicted traffic noise levels warrant abatement and to design the abatement structures. The public perception problem described above suggests that the model does not result in adequate noise barrier abatement designs near random transverse grooved concrete pavements. The overall goal of this project was to provide ODOT with accurate TNM noise predictions when modeling random transverse grooved concrete pavement highways. Three random transverse grooved PCC roadway sites were chosen for study where high quality sound recordings were taken. Sites 1 (Cincinnati I-275) and 2 (Troy I-75) were chosen to represent the noise quality experienced by residents adjacent to the roadway, where the residential areas were separated from the roadway by sound barriers. Site 3 (Madison County I-70) was chosen to study the attenuation of road noise with distance in an easily-characterized environment; an open soybean cropland essentially level on both sides of the roadway with no noise barrier. Through a paired t-test the research findings determined that the sample means of the TNM average pavement and the ODOT random transverse grooved pavement were not equivalent based upon a level of confidence of 95 percent. An examination of the one-third octave band frequency levels indicated that at frequencies greater than 500 Hz, the measured traffic noise levels exceeded both the TNM average pavement type and TNM ODOT random transverse grooved pavement predictions. However, at frequencies less than 500 Hz the predictions tended to exceed the measurements. It is recommended that the experimental version of TNM developed for this project, using the current ODOT random transverse grooved concrete pavement REMEL, should not be used in practice due to its potential to under-predict traffic noise levels. A new surface texture specification should also be developed for concrete pavements to replace the current specification in order to reduce tire/pavement noise levels while maintaining or improving safety and durability characteristics.
Book Synopsis Preliminary Assessment of Traffic Noise Effectiveness for Project HAM-71-11.44 by : Lloyd Allen Herman
Download or read book Preliminary Assessment of Traffic Noise Effectiveness for Project HAM-71-11.44 written by Lloyd Allen Herman and published by . This book was released on 1997 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The completion of the traffic noise barrier project HAM-71-11.44 in Ohio was met with strong reaction from those living in the project area. Many residents complained that noise levels had actually increased at their location as a result of the project, while others claimed that levels had decreased where they lived. The preliminary assessment project was initiated to determine the nature and extent of any problems that had occurred with the construction of the noise barriers. A two-pronged approach was used for the study. First, a survey of residents was conducted to characterize the residents' perception of changes in noise levels due to construction of the barriers. Second, a physical investigation of the project area was made, which included roadway and barrier geometries, traffic characteristics before and after barrier construction, and acoustical measurements to characterize the noise environment in the project area.
Book Synopsis Design of Wood Highway Sound Barriers by :
Download or read book Design of Wood Highway Sound Barriers written by and published by . This book was released on 2001 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: As new and existing U.S. residential areas and high volume highways continue to intermingle, traffic noise abatement procedures continue to be important. This study investigated the acoustic effectiveness, public acceptance, and structural requirements of various designs and types of sound barriers. In addition, the acoustic effectiveness of a prototype sound barrier is reported. Results are presented on the acoustic effectiveness from in situ measurements of one cement bonded composite panel barrier and four precast concrete, two plywood, two glued-laminated, and three post and panel barriers. The research on public acceptance of sound barriers focused on the perception of visual compatibility. Based on results from semantic-differential and individual ratings, wood and concrete barrier designs were perceived to have favored gbsruralgcs qualities. Data collected during the research on acoustic effectiveness and public acceptance were used to develop structural requirements and construction details for a prototype wood sound barrier. The prototype wood sound barrier provided insertion losses of 15 dB or greater, exceeding the 10-dB acceptable performance for a highway sound barrier.
Book Synopsis Objective Measurement of Traffic Noise Barriers to Determine Their Acoustic Effectiveness by : James R. O'Connor
Download or read book Objective Measurement of Traffic Noise Barriers to Determine Their Acoustic Effectiveness written by James R. O'Connor and published by . This book was released on 1980 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effectiveness of Traffic Noise Barrier on I-471 in Campbell County, Kentucky. Interim Report by : F. Thomas Creasey
Download or read book Effectiveness of Traffic Noise Barrier on I-471 in Campbell County, Kentucky. Interim Report written by F. Thomas Creasey and published by . This book was released on 1984 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guidelines for Evaluating the Performance of Highway Sound Barriers by : Highway Innovative Technology Evaluation Center (U.S.)
Download or read book Guidelines for Evaluating the Performance of Highway Sound Barriers written by Highway Innovative Technology Evaluation Center (U.S.) and published by ASCE Publications. This book was released on 1996-01-01 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepared by the Highway Innovative Technology Evaluation Center, a CERF Service Center. This report presents the HITEC evaluation plan for U.S. Gypsum's Sight and Sound Screen. The Sight and Sound Screen is a post-and-panel wall system designed to act as a sight and sound barrier for highways and as a privacy system for residential and commercial property owners. The HITEC evaluation will measure the performance of the barrier against the criteria presented in this report, which reflect the needs of the highway community. Although this evaluation plan was tailored to one product, as a service to state and local transportation officials the report was expanded to provide guidelines that can be adapted for use with other types of sound wall systems.
Book Synopsis Parallel Barrier Effectiveness Under Free-flowing Traffic Conditions by : Gregg G. Fleming
Download or read book Parallel Barrier Effectiveness Under Free-flowing Traffic Conditions written by Gregg G. Fleming and published by . This book was released on 1992 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the results of a measurement study performed at a highway noise barrier site located along Interstate 495 in Montgomery County, Maryland. The objective of the study was to measure the degradation in acoustic performance of a highway noise barrier due to the close proximity of a parallel barrier on the opposite side of the roadway. The test site selected for measurements consisted of a contiguous arrangement of two parallel reflective noise barriers followed by a single noise barrier. Five-minute, energy-averaged, A-weighted noise levels were computed from data measured simultaneously at identical heights and offset positions behind the single and parallel barrier arrangements. A comparison of the measured and predicted results is presented.
Book Synopsis Effectiveness of Parallel Noise Barriers by : Ron Ridnour
Download or read book Effectiveness of Parallel Noise Barriers written by Ron Ridnour and published by . This book was released on 1987 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sound Procedures for Measuring Highway Noise by :
Download or read book Sound Procedures for Measuring Highway Noise written by and published by . This book was released on 1981 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revised manual presents noise measurement procedures for use by Federal, State, or local transportation departments. Methods are included for the measurement of traffic/existing sound levels, vehicle sound levels, barrier field insertion loss, non-traffic noise source sound levels, construction equipment noise, building noise reduction, and worker noise exposure. The required instrumentation, test site restrictions, step by step measurement procedures, and computational methods are included. This revision incorporates two measurement procedures issued after the interim report was published: "Determination of Reference Energy Mean Emission Levels", Federal Highway Administration (FHWA) Report No. FHWA-OEP/HEV-78-1, which replaces chapter 4, and "Determination of Noise Barrier Effectiveness, FHWA Report No. FHWA-OEP/HEV-80-1, which replaces chapter 5.
Book Synopsis Acoustics of Sound Transmission Over Noise Barrier Walls by : Richard K. Romick-Allen
Download or read book Acoustics of Sound Transmission Over Noise Barrier Walls written by Richard K. Romick-Allen and published by . This book was released on 1999 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study is to access and quantify the prediction means for traffic noise. Of particular interest is the noise reduction behind noise walls, referred to as the shadow zone. The study measured traffic noise at four sites in the metropolitan Chicago area with noise barriers. These four sites were modeled with both STAMINA 2.0 and FHWA Traffic Noise Model (TNM) 1.0. For these four sites, TNM predicted the observed traffic noise more accurately than STAMINA. In general, STAMINA overpredicted the traffic noise relative to the measured values. The second objective of the study was to access the state-of-the-art of top treatments for noise walls. Top treatments are an addition to a traditional noise wall to increase the effectiveness without significantly increasing the cost or height of the noise wall. It appears that top treatments are not well enough developed for consideration in Illinois at this time. The last objective was to develop a means to help educate the general public about traffic noise and noise wall characteristics. To meet this objective, two means were developed. The first was a home page that provides great flexibility due to the hypertext format. The second was a tri-fold brochure to serve as a handout at public meetings or as a visual aid for one-on-one discussions.