详情

Development of a Highway Construction Noise Prediction Model

项目名称：	Development of a Highway Construction Noise Prediction Model
摘要：	The Federal Highway Administration (FHWA) developed the Roadway Construction Noise Model (RCNM) in response to growing public concern and complaints about construction noise. The RCNM is based on the construction noise model developed and utilized at the Central Artery/Tunnel Project in Boston. The data used for the RCNM has since been used as a reference source for construction equipment noise emissions and predictions. The model itself has been used for planning and environmental assessment, construction noise mitigation plans, regulations development, and specification enforcement. RCNM uses simplified assumptions (e.g., equipment usage factors) that limit its flexibility and accuracy additionally, the construction equipment noise database in RCNM provides only broadband Lmax A-weighted levels, the calculation of time-dependent noise metrics is done by estimation, and it neglects the excess attenuation provided by ground effects and air absorption losses. To ensure compliance with state, local, and project-specific noise restrictions, under the NCHRP 25-49 project, RCNM 2.0 was developed, an improved model for predicting construction noise and the effects of noise reduction efforts. The objective of this research was to develop and validate a noise model to calculate the acoustic environment associated with highway construction equipment and activities, to accumulate a database of noise sources, and to document the appropriate applications of the model. The final report Development of a Highway Construction Noise Prediction Model, the Roadway Construction Noise Model (RCNM) 2.0 User Guide, and Appendix-A inclusive of survey questions and responses are available on this project home page. The RCNM 2.0 may be found on the FHWA webpage using the following link https://www.fhwa.dot.gov/environment/noise/construction_noise/.
状态：	Completed
资金：	350000
资助组织：	National Cooperative Highway Research Program
项目负责人：	Crichton-Sumners, C
执行机构：	Gannett Fleming, Incorporated
主要研究人员：	El-Aassar, Ahmed
开始时间：	20151102
预计完成日期：	20181031
实际结束时间：	20181031