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August 11, 1982
My first assignment after joining the Association of American Railroads (AAR) Research & Test Deptartment (R&T) at the end of 1977 as an environmental specialist was to support the development of national noise standards for the railroad industry. We measured sound levels of locomotives, retarders, car coupling, load testing, refrigerator cars, and other noise sources at several railyards around the country. I’d like to share with you some images from one of the yards we studied: Southern Railway’s Brosnan hump yard at Macon, Georgia.
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