| Autor: |
Tate, D. C., Lawther, J. M. |
| Zdroj: |
Journal of the Acoustical Society of America; 1980, Vol. 67 Issue S1, pS54-S54, 1p |
| Abstrakt: |
A series of acoustic measurements have been completed, simulating traffic noise produced by automobiles and trucks. In order to provide controlled tests, scaled measurements were conducted in a large gymnasium using a 5:1 scale factor. An automated, computer-controlled system was specially designed to complete the large number of measurements required. A remote-controlled cart simulated the traffic vehicles. A digital computer controlled the tests, collected and processed the raw data for quicklook analysis, and recorded both the raw and processed results for detailed postrun analysis. Measurements were made simulating uniform terrain with the hard floor for infinite impedance terrain and covering the floor with carpet for finite impedance terrain. Sound field variations due to sound-impeding barriers of various shapes were also measured. This paper presents an overview of the measurements conducted and the data collection-processing systems, and illustrates some of the measured results. [Work jointly supported by the NCHRP and FHWA.] [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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