||Noise in rail transit cars : incremental costs of quieter cars.
Ungar, E. E.
||Bolt, Beranek and Newman, Inc., Cambridge, Mass.;Environmental Protection Agency, Arlington, Va. Office of Noise Abatement and Control.
|| Bolt, Beranek and Newman ; Available through National Technical Information Service,
Rapid transit railways ;
Noise reduction ;
Railroad cars ;
Cost engineering ;
Noise pollution ;
Vehicle noise ;
Benefit cost analysis ;
Environmental aspects ;
Human factors engineering ;
Operating costs ;
Structural design ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||45 pages : illustrations, graphs ; 28 cm.
U.S. rail rapid transit systems, car operations, and the car building industry are described in relation to the procurement of quieter cars. The noise environment of passengers in rapid transit cars is discussed and the major noise sources and paths of noise transmission into cars are delineated. For essentially all combinations of car noise-control modifications deemed technically and economically feasible for implementation in new vehicles, estimates are presented of the associated noise reductions, initial costs, and operating costs. It is concluded that significant reductions in in-car noise under typical operating conditions can be achieved at incremental costs that are small percentages of the total car costs.
Prepared for U.S. Environmental Protection Agency, Office of Noise Abatement and Control, under contract no. 68-01-1539. Includes bibliographical references (page 28). Microfiche.