Truck Noise-Source Mapping
| 项目名称： | Truck Noise-Source Mapping |
| 摘要： | Heavy trucks are significant contributors to overall traffic noise levels, and transportation agencies must better understand the location and relative levels of the principal noise sources (e.g., exhaust, mechanical, tire/pavement, and aerodynamic) on heavy vehicles in order to more successfully mitigate traffic noise impacts. Typical measures used to mitigate highway traffic noise include noise barriers, land use planning, and insulation of structures. Some transportation agencies are investigating additional measures, such as quiet pavements. Newer acoustical measurement and mapping techniques such as beamforming show promise for isolating the location and extent of the primary noise sources emanating from heavy trucks. Some studies suggest that near-field acoustical holography is a good complement to beamforming for measurement and mapping of low-frequency sounds. Data obtained in this project could directly support a number of ongoing quiet pavement research studies, including the FHWA Quiet Pavement Pilot Project. The data will also yield information that could greatly enhance computer analysis of traffic noise impacts that are a part of environmental impact reports. Information from this project will guide decisions made at both a management level and a project design level. The objective of this study is to use acoustic measurement and noise-source mapping techniques to accurately identify, locate, and quantify the noise sources on typical commercial truck and tractor-semitrailer combinations operating in the U.S. roadway environment. |
| 状态： | Completed |
| 资金： | 496889.00 |
| 资助组织： | Federal Highway Administration<==>American Association of State Highway and Transportation Officials (AASHTO)<==>National Cooperative Highway Research Program |
| 项目负责人： | Hedges, Christopher J |
| 执行机构： | Wyle Laboratories |
| 开始时间： | 20050825 |
| 实际结束时间： | 20081231 |
| 主题领域： | Design；Highways；Motor Carriers；Vehicles and Equipment；I15: Environment |
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