Noise and Vibration Characteristics of High Speed Transit Vehicles

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Noise and Vibration Characteristics of High Speed Transit Vehicles

The rapidly expanding problems of urban transportation have resulted in intensified activity in the development and construction of new fixed route, high speed rapid transit systems and equipment. The community noise and ground vibration caused by such systems and vehicles is a very important factor influencing public acceptance of these systems. Noise and vibration measurements obtained with modern operational and experimental transit vehicles provide a basis for determining the expected wayside or community airborne noise and ground-borne vibration levels for different types of new transit systems. Through the use of modern design concepts and equipment intended to provide reduced noise and vibration, the wayside noise and vibration caused by rapid transit system vehicles can be made acceptable and the operations can be much quieter than traditionally expected despite the general increase in speed of the newer systems which tends to increase noise and vibration. The purpose of this report is to present a review of the available information on wayside noise and vibration generated by rapid transit vehicles, primarily rail transit vehicles, including projection of the expected noise and vibration levels for higher speed vehicles being considered for future applications. (DOT abstract)