The report presents the theoretical development of a model for the prediction of noise radiated by elevated structures on rail transit lines. In particular it deals with noise and vibration control for urban rail transit track and elevated noise and vibration control for urban rail transit track and elevated structures. The model allows for the prediction of both the vibration transmission between elements of the structure and the resulting noise radiation from each major structural element, in terms of design parameters for the different elements. Thus the potential effectiveness of various alternative methods for noise control can be evaluated. Results of a field study of three different types of elevated structure on the MBTA Rapid Transit System are also summarized. These results support the validity of the prediction model. The engineering application of the prediction model is discussed in another report.
Noise Prediction Models for Elevated Rail Transit Structures
1975
249 pages
Report
No indication
English
Noise Pollution & Control , Railroad tracks , Elevated railroads , Noise pollution , Mathematical models , Predictions , Vibration , Wave propagation , Sound transmission , Sound pressure , Structural members , Noise reduction , Structural design , Urban transportation , Noise abatement , Computer programs