Exterior Sound Level Measurements of Snowcoaches at Yellowstone National

ISBN-13: 9781495315688 / Angielski / Miękka / 2010 / 200 str.

U. S. Department of Transportation

Opis

In February 2008, the Volpe Center performed acoustic measurements of ten snowcoaches and six snowmobiles. These measurements were made with two primary objectives: (1) help determine what testing protocols should be used to determine if snowcoaches meet the sound level BAT and; (2) determine which snowcoaches currently operating in the parks meet the sound level BAT standards. The Volpe Study resulted in a number of recommended improvements to the procedures in SAE J116114.