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Tin-cheung Chan Kin-che Lam 《Transportation Research Part D: Transport and Environment》2008,13(5):334-339
We investigate how two non-acoustic factors, information bias and riding frequency, can affect the annoyance response of an urban population to noise created by a new railway line. The study shows that information bias is asymmetrical. Respondents receiving only information on positive measures taken by the authority to reduce noise emission are more tolerant of the noise impact, but those receiving only critical views tend to be more annoyed because they feel that not all measures to reduce noise have been employed. Additionally people who use the line frequently are more tolerant to the noise impact than those who do not. Information bias seems to have a temporary masking effect over riding frequency lasting for a few weeks after railway opening. This suggest that whilst free flow of information provided by the authority can help alleviate annoyance response, encouraging the people affected to make use of the new infrastructure may be useful to reduce public resistance and noise annoyance. 相似文献
183.
通过分析桥梁工程在建设过程中,各施工环节对当地生态环境造成的不良影响,提出改善措施,达到建设与环保相和谐且可持续发展的目标。 相似文献
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研究高技术企业创业环境评价问题,运用系统分析方法构建了高技术企业创业环境评价指标体系,在此基础上深入研究了模糊层次分析法在高技术企业创业环境评价中的具体运用.结果表明模糊层次分析法是高技术企业创业环境评价的一个新的、有效的方法,最后对模糊层次分析法应用的局限性作了简要的分析. 相似文献
187.
海上平台中央空调系统噪声分析和降噪方案研究 总被引:1,自引:1,他引:0
文章通过惠州21—1B平台中央空调系统测试和改进实践,对该系统的噪声进行了分析,并提出了相应的降噪方案。 相似文献
188.
AbstractHousehold vehicle ownership, and the associated dimensions including fleet size, vehicle type and usage, has been one of the most researched transport topics. This paper endeavors to provide a critical overview of the wide-ranging methodological approaches employed in vehicle ownership modeling depending on the ownership representation over the past two decades. The studies in the existing literature based on the vehicle ownership representation are classified as: exogenous static, exogenous dynamic, endogenous static and endogenous dynamic models. The methodological approaches applied range from simple linear regressions to complex econometrics formulations taking into account a rich set of covariates. In spite of the steady advancement and impressive evolution in terms of methodological approaches to examine the decision process, we identify complex issues that pose a formidable challenge to address the evolution of vehicle ownership in the coming years. Specifically, we discuss challenges with data availability and methodological framework selection. In light of these discussions, we provide a decision matrix for aiding researchers/practitioners in determining appropriate model frameworks for conducting vehicle ownership analysis. 相似文献
189.
We modeled the propagation of traffic noise over the landscape and analyzed its impact on the structure and configuration of protected areas of the Twin Cities Metro Region, Minnesota. Using four noise thresholds, we found that at low and medium noise levels, 19% and 11% of the protected areas are within the road-effect zone. Using mean patch area and patch shape index, we measured the acoustic fragmentation of habitats. We found that at higher levels of noise patch shape index increased, while mean patch size decreased. The acoustic diversity of a patch is also found to be correlated with land cover type, patch area, and patch shape. 相似文献
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对中、欧、加等国就汽车噪声的限值要求及试验方法作比较,并实测验证两种试验方法的差别。 相似文献