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原文传递 Investigation into Effective Traffic Noise Abatement Design Solutions for Mountain Corridors.

题名：	Investigation into Effective Traffic Noise Abatement Design Solutions for Mountain Corridors.
作者：	Tischmak, D.
关键词：	Design; Earth Berms; Highways; Investigations; Mitigation; Mountain Corridors; Noise Abatement; Noise Reduction; Noise Walls; Pavements; Traffic Noise
摘要：	Traffic noise abatement in mountain corridors can be difficult because traditional roadside barriers may be ineffective due to topography or may not fit the setting. This study examined current best practices from around the world to gather concepts for mitigating traffic noise in mountain corridors in Colorado. A literature review of prospective noise abatement actions found that noise barriers are the most effective direct noise abatement measure, although quieter pavements could have an important supporting role. The literature review was followed by computerized traffic noise modeling of promising candidate barrier concepts. Several noise barriers were evaluated through modeling at two areas along the I-70 corridor using the Nord2000 Road prediction method. Each of the barriers was found to be effective in some or many situations; the largest, most imposing barrier (galleries) showed the most potential for reducing traffic noise at locations above the elevation of the highway. Continued use of noise barriers as a primary abatement mechanism was recommended. Consideration of quieter default pavement types was recommended to lower general traffic noise levels in support of environmental stewardship goals.
报告类型：	科技报告