A description of motor vehicle noise sources and the potential for their control is provided. The report presents an overview of the suggested noise prediction methodology, which is a four step process that includes approximating noise impacts using a nomograph procedure to determine noise levels associated with given traffic and site characteristics; refining these predictions by more accurate representation of design parameters and use of a computer program that is able to plot as well as calculate noise impact; introducing appropriate noise-control options and evaluate them, using a noise barrier nomograph solution; lastly, selected options are fully evaluated using the computer program.It is believed that an appreciation of these matters will help the reader to use the design guide more effectively, and to ... noise emission characteristics: (a) light trucks, (b) medium trucks, and (c) heavy trucks (for definitions see Chapter Two).
|Author||:||B. Andrew Kugler, Daniel E. Commins|
|Publisher||:||Transportation Research Board National Research - 1976-01-01|