Exterior sound level measurements of over-snow vehicles at Yellowstone National Park.

Hastings, Aaron L.; Scarpone, Chris; Fleming, Gregg G.; Lee, Cynthia S. Y.

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Exterior sound level measurements of over-snow vehicles at Yellowstone National Park.

2008-09-30
By Hastings, Aaron L. ; Scarpone, Chris ; Fleming, Gregg G.

File Language:

English

Details

Creators:

Hastings, Aaron L. ; Scarpone, Chris ; Fleming, Gregg G. ; Lee, Cynthia S. Y.
Corporate Creators:

John A. Volpe National Transportation Systems Center (U.S.)
Subject/TRT Terms:
Publication/ Report Number:

DOT-VNTSC-NPS-08-03
Resource Type:

Tech Report
Geographical Coverage:

Wyoming
Corporate Publisher:

John A. Volpe National Transportation Systems Center (U.S.)
Abstract:

Sounds associated with oversnow vehicles, such as snowmobiles and snowcoaches, are an ; important management concern at Yellowstone and Grand Teton National Parks. The John A. ; Volpe National Transportation Systems Center’s Environmental Measurement and Modeling ; Division is supporting the National Park Service with its on-going Winter Use Planning ; program. As part of this support, acoustic measurements of ten snowcoaches and six ; snowmobiles were made at the south entrance to Yellowstone National Park from the 26th ; through the 28th of February 2008. Measurement methodologies were guided by SAE J1161 ; and SAE J192. There were two primary objectives: 1) to determine which snowcoaches had ; the Best Available Technology (BAT) with respect to noise emissions, and 2) to determine ; if there was a significant difference between snowmobile sound levels when tested using ; two revisions of SAE J192. Based on analysis of the data, it appears that among the ; snowcoaches, the Yellowstone Expeditions’ modified Dodge B530 snowcoach would be an ; excellent candidate for BAT classification. It was also found that measurements guided ; by the two revisions of SAE J192 had very similar results.
Format:

PDF
Funding:

VX82 - EM355
Download URL:

https://rosap.ntl.bts.gov/view/dot/9732/dot_9732_DS1.pdf
File Type:

[PDF - 2.42 MB]
Collection(s):

Volpe Center
Main Document Checksum:

urn:sha-512:93e82885b2539679ce4b3db946dcffb558d10e2be33e9aea819a805d472722f466a4195d5e95c8461dc67ac36f56836c1fe6d1b3ca68c420b777f6f923b59564

File Language:

English

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