Topic
Noise pollution
About: Noise pollution is a research topic. Over the lifetime, 4455 publications have been published within this topic receiving 67192 citations.
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TL;DR: In this paper, the authors analyze the suitability of warning sounds according to the urban environments in which they are going to be emitted, and highlight the wide variability in pedestrian reaction time for the different warning sounds used.
25 citations
TL;DR: In this article, a laboratory simulation was employed to differentiate between three types of aircraft noise common to national parks: overflight noise, helicopter noise, and propeller plane noise, with jet airplanes being the least negative when noise was present.
25 citations
01 Jan 2004
TL;DR: In this article, the authors deal with the development of methods to compute acoustic radiation from a stationary vibrating object and, vice versa, methods to iden-¯¯tify the sources of sound on the surface of the object, provided a measurement of the sound field is available.
Abstract: Over the past few decades noise pollution has emerged as an important issue in modern society and provides much of the impetus for the development of noise prediction and reduction techniques. The ability to locate different sound radiating sources and to determine their contributions to the overall sound distribution is a first step towards solving the noise problem. This research deals with the development of methods to compute acoustic radiation from a stationary vibrating object and, vice versa, methods to iden-
tify the sources of sound on the surface of the object, provided a measurement of the sound field is available.
25 citations
TL;DR: In this paper, the authors present a noise impact analysis along a coastal stretch of highway that forms the major entrance into the greater Beirut metropolitan area, and evaluate the efficacy of the proposed mitigation measures in satisfying absolute and relative noise-abatement criteria.
Abstract: Traffic noise along highways is continuously increasing; with the projected growth in future traffic use, particularly near developing urban areas, it will not cease to increase. As a result, highway noise impacts are expected to be significant and mitigation strategies will undoubtedly be required. This paper presents a noise impact analysis along a coastal stretch of highway that forms the major entrance into the greater Beirut metropolitan area. Geometric layout includes a proposed 13 km elevated highway-viaduct with underlying service roads running parallel to an existing 4 × 4-lane highway currently accommodating an average daily traffic (ADT) volume of about 160,000 vehicles per day. The proposed viaduct is planned to be a BOT (build-operate-transfer) project and thus includes two toll plazas and three interchanges. Traffic flow characteristics including volumes, vehicular classification, and travel speeds were defined along the proposed coastal highway. Sensitive noise receptors were identified and noise measurements were taken during the noisiest periods. The FHWA traffic noise model was used to simulate base year and future noise exposure of adjacent land uses. The model was calibrated using the combination of field measurements and model predictions. Noise mitigation strategies were defined as well as the locations where they were deemed appropriate. The model was used to evaluate the efficacy of the proposed mitigation measures in satisfying absolute and relative noise-abatement criteria. Finally, the feasibility of implementation of relevant mitigation measures is discussed within the site-specific constraints.
25 citations
TL;DR: A retrospective view of noise policies and ordinances in India is provided and the inclusion of noise limits for construction activities, household appliances apart from the revision in ambient noise standards and National Building Codes for protection against noise pollution is proposed.
Abstract: This article provides a retrospective view of noise policies and ordinances in India. It also proposes revisions in them for noise abatement and control based on the available knowledge on noise policies and regulations followed around the world. The work focuses on the inclusion of noise limits for construction activities, household appliances apart from the revision in ambient noise standards and National Building Codes for protection against noise pollution. It is envisaged that the proposed revisions and work plan shall be instrumental in execution of noise abatement action plans for controlling noise pollution in India.
25 citations