Wayside Noise of Elevated Rail Transit Structures: Analysis of Published Data and Supplementary Measurements
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1980-12-01
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Edition:Interim report; Jul 1978-Oct 1980
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Abstract:Elevated structures that carry rail traffic are classified in terms of their noise-radiating components and are compared to similar trains operating at grade, according to how much more noise results from trains running on elevated structures. The mechanisms responsible for the generation of wayside noise are discussed, noise control concepts are reviewed, and the effectiveness of noise-control means that have been reported in the technical literature are summarized. The noise-control means that are most suitable for the various major classes of structures are indicated. In the appendices, results of measurements made on a MARTA structure to investigate the noise reductions resulting from a barrier and from damping applied to a steel box beam are presented, as well as the order to evaluate the effects of replacement of standard by resilient rail fasteners. An extensive annotated bibliography of the world literature appears in a final appendix.
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