Amtrak Acela High Speed Rail - Noise & Vibration Measurement - Acentech The Northeast Corridor (NEC) is the most heavily traveled passenger rail corridor in the United States, passing through and serving North America’s most densely populated urban/suburban regions between Washington, D.C. and Boston, MA. Tra?c on the NEC includes freight trains, regional inter- city trains, commuter service provided by local transit agencies, and the Amtrak Acela Express high-speed trains. Amtrak retained Acentech to continuously measure, second-by-second, for a 48 hour period the airborne noise and/or ground-borne vibration at 89 residential locations adjacent to the corridor in Massachusetts, Rhode Island, and Connecticut. The processed measurements provided detailed results for each train as well as th

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