SOUND ATTENUATION KIT FOR DIESEL-POWERED BUSES
The Transportation Systems Center (TSC), on behalf of the U.S. Department of Transportation (DOT), initiated a project to assess, demonstrate and document the noise reduction potential of optimized commercially-available exhaust, intake, and fan subsystems on a typical diesel-powered city bus. These subsystems were to be retrofitable designs in current vehicle fleets while maintaining public safety and established vehicle exhaust emission regulations. This report, in response to this effort, is intended to provide a reference for manufacturers, owners, and operators to consult for recommendations or instructions on installing a proven noise-reduction kit. It provides an insight into the causes of diesel-powered bus noise and demonstrates an effective means for its reduction. Appendixes give standard noise measurement procedures, acoustic and performance test data on the various design configurations, and service information on sound attenuation kits.
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Corporate Authors:
Rohr Industries, Incorporated
P.O. Box 878
Chula Vista, CA United States 92012Transportation Systems Center
55 Broadway, Kendall Square
Cambridge, MA United States 02142 -
Authors:
- Berry, J C
- Overgard, D L
- Publication Date: 1976-6
Media Info
- Features: Appendices;
- Pagination: 235 p.
Subject/Index Terms
- TRT Terms: Acoustics; Air quality management; Buses; Damping (Engineering); Diesel engines; Engines; Exhaust gases; Fans; Mufflers; Noise; Noise control; Performance tests; Sound level meters
- Uncontrolled Terms: Attenuation; Noise reduction
- Old TRIS Terms: Cooling fans; Engine noise; Exhaust emission control
- Subject Areas: Environment; Highways; Operations and Traffic Management; Public Transportation; Vehicles and Equipment;
Filing Info
- Accession Number: 00143261
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: Final Rpt., DOT-TSC-OST-76-5
- Contract Numbers: DOT-TSC-714
- Files: NTIS, TRIS
- Created Date: Nov 3 1976 12:00AM