Noise Insulation of Residences Near Freeways

摘要

As part of a national effort to gain information on the feasibility and effectiveness of noise insulation of private homes near freeways, four residences were insulated against freeway noise on an experimental basis. The report discusses the legal ramifications, the design, specifications, and the administration of contract for trial installations. It also includes an evaluation of before and after noise measurements and homeowner reactions. The cost effectiveness of using insulation as a noise mitigation strategy is compared with that of noise barriers. It is concluded that insulation can be a viable alternative if: (1) it is done on a small scale (isolated homes) and there is no concern for mitigating noise levels outside the residence, or (2) barriers are neither feasible due to topography, nor desirable because of interference with scenic views or general aesthetics.