Showing papers on "Annoyance published in 1989"

Updating a dosage-effect relationship for the prevalence of annoyance due to general transportation noise

Abstract: More than a decade has passed since a relationship between community noise exposure and the prevalence of annoyance was synthesized by Schultz [T. J. Schultz, J. Acoust. Soc. Am. 64, 377–405 (1978)] from the findings of a dozen social surveys. This quantitative dosage–effect relationship has been adopted as a standard means for predicting noise‐induced annoyance in environmental assessment documents. The present effort updates the 1978 relationship with findings of social surveys conducted since its publication. Although the number of data points from which a new relationship was inferred more than tripled, the 1978 relationship still provides a reasonable fit to the data.

Experimental Study Of Human Behavior In Smoke Filled Corridors

Abstract: An experimental study was conducted in order to clarify a degree of human emotional instability under smoke condition. Mental arithmetic and walking speed were adopted as indices of the emotional instability, and furthermore an annoyance of smoke and heat was investigated by questionnaire. The emotional instability caused by physiological factors, such as smoke irritation, is found to be important as well as a psychological unrest under high irritant smoke. Such fire smoke affects the thinking power and walking speed. Especially the heat from smoke is found to reduce the thinking power in the range between 2,030 kcal/m2h and 1,370 kcal/m2 h.

Jobs and their Environment: The Psychological Impact of Work in Noise

Abstract: A survey of Blue-collar workers (N=90l) of both sexes from a variety of industries was used to investigate the role of exposure to noise, the work performed – assessed in terms of Person-Environment (P-E) fit – and shift-work in affecting a variety of indices of psychosocial strain and mental health. The frequency of a range of symptomatic effects of noise exposureincreased with noise level. Multiple regression analysis indicated that P-E fit on factors intrinsic to the job had the most pervasive and strongest influence on psychosocial strain indices and, through them, exerted a strong influence on mental health. It also revealed that being constrained in a noisy environment exerted a wider and stronger influence on these variables than did noise level itself, the effects of which were restricted to annoyance.

Annoyance Due to Environmental Low Frequency Noise and Source Location — A Case Study

Abstract: On demontre que les plaintes sont dues plus a la nature deplaisante du bruit a basse frequence qu'a son niveau reel

Annoyance caused by railway vibration and noise in buildings

Abstract: This thesis is concerned with the annoyance caused by railway-induced building vibration and railway noise. A review of previous studies was conducted to examine current knowledge. The review enabled identification of areas in which there was insufficient information on which to base a prediction of the reaction to railway vibration and noise in buildings. Deficiencies in current knowledge formed the basis of a programme of experimental work which was conducted to investigate how the annoyance produced by railway-induced building vibration is affected by the number of trains, the vibration magnitude, the vibration frequency, the direction of vibration and the presence of noise. Two laboratory experiments were concerned with how annoyance caused by railway-induced building vibration depends on the magnitude of vibration and on how often trains pass. A trade-off was determined between the number of trains and the vibration magnitude which indicated a fourth power relation between magnitude and duration. The relation supports the use of the vibration dose value as a method of vibration assessment. Two further experiments were conducted to determine the subjective equivalence of noise and vibration and to investigate the interaction and combined effects of the two stimuli. The results suggest that vibration does not influence the assessment of noise but that the assessment of vibration can be increased or reduced by the presence of noise, depending on the relative magnitudes of the vibration and noise. A fifth experiment was performed to investigate the influence on annoyance of vibration frequency, vibration magnitude and vibration direction. Vibration frequency weightings were determined to describe subjective response to whole-body vibration at low magnitudes such as occurs in buildings. The results indicate that the weightings in British Standard 6841 (1987) provide a reasonable approximation to the frequency dependence of response to whole-body vibration at low magnitudes. In the final experiment the previous findings were combined to provide a general method of predicting the relative annoyance from complex conditions of railway vibration and noise. The method was shown to provide a more accurate prediction of the relative annoyance from railway vibration and noise than methods based on the influence of noise or vibration alone.

On a theoretical interpretation of the prevalence rate of noise‐induced annoyance in residential populations—High‐amplitude impulse‐noise environments

Abstract: In a recent paper, Fidell et al. [J. Acoust. Soc. Am. 84, 2109–2113 (1988)] have introduced a theoretical interpretation of the prevalence rate of noise‐induced annoyance in residential populations exposed to common environments consisting of sources such as aircraft, motor vehicles, etc. Their model assumes a compressive transformation of DNL, and they assert that ‘‘the quantity that engenders annoyance must be strongly related to the apparent magnitude of noise exposure.’’ Thus they use the well‐known finding that apparent loudness is proportional to the 0.3 root of acoustic energy. High‐amplitude impulse noise has been shown to be different from typical community noise, in part because it induces vibrations and rattles in structures. So the annoyance response is due both to the audible sound and to the induced vibrations and rattles; the latter should be proportional to the 0.5 power of DNL. In this letter, a compressive transformation coefficient of 0.4 (midway between 0.3 and 0.5) is used for high‐amplitude impulse sound. The results show excellent fit between theory and results. On the one hand, this fit supports the view of the Committee on Hearing Bioacoustics and Biomechanics (CHABA), a view that induced vibrations and rattles (and not only loudness) determine annoyance to high‐amplitude impulse noise, and, on the other hand, this close fit lends further credence to the Fidell model.

Advanced turboprop aircraft flyover noise annoyance - Comparison of different propeller configurations

Abstract: A laboratory experiment was conducted to compare the annoyance of flyover noise from advanced turboprop aircraft having different propeller configurations with the annoyance of conventional turboprop and jet aircraft flyover noise. It was found that advanced turboprops with single-rotating propellers were, on average, slightly less annoying than the other aircraft. Fundamental frequency and tone-to-broadband noise ratio affected annoyance response to advanced turboprops but the effects varied with propeller configuration and noise metric. The addition of duration corrections and corrections for tones above 500 Hz to the noise measurement procedures improved prediction ability.

A Systematic Interpretation of a Dosage-Effect Relationship for the Prevalence of Noise-Induced Annoyance

Abstract: : This report applies a NSBIT -developed probabilistic model to a body of social survey findings described by Fidell, Barber and Schultz (1988) to derive a dosage-effect relationship between outdoor noise exposure and the prevalence of annoyance in communities. The probabilistic model (Fidell, Schultz and Green, 1988) provides a means for independently estimating the contributions of acoustic and nonacoustic factors (the latter collectively termed 'response bias') to the observed prevalence of annoyance in communities. The results of the analysis described in this report permit construction of tools that environmental planners can use to make more sophisticated and defensible predictions of annoyance associated with noise of Air Force flight operations. Keywords: Annoyance; Aircraft noise; Traffic noise; Psycho-acoustics; Community response; Noise pollution.

Advanced turboprop aircraft flyover noise annoyance

Abstract: Results from recent laboratory experiments in which human subjects were exposed to synthetic sounds simulating the flyover noise emitted by advanced turbofan aircraft engines are briefly summarized. The Aircraft Noise Synthesis System described by McCurdy et al. (1987) is used to simulate the noise from (1) a conventional turboprop engine, (2) a jet engine, (3) a single-rotating turbofan engine, and counterrotating turbofans with (4) equal or (5) unequal numbers of blades on the two rotors. The measured annoyance levels are compared with effective perceived noise levels in a graph. For a given noise level, the annoyance levels for (3) are shown to be slightly lower than those for all the other engine types, especially if the tone/broadband noise ratio is relatively high.

Public reaction to low levels of aircraft noise

Abstract: Several recent instances have raised the issue of public annoyance from the noise of airplanes flying at relatively high altitudes or at relatively large distances from the nearest airport. Public complaints have arisen about airplane flights over northern New Jersey as the result of changes in flight patterns associated with the major New York airports, even though in many instances those airplanes are flying at 15 000 ft or higher. Concerns have arisen regarding the noise levels on the ground from the new, swept‐blade, advanced turboprop airplanes when they are flying at cruise altitudes of 30 000 ft and higher. Complaints about aircraft noise over national parks have resulted in a Congressional requirement to measure those noises and determine their severity. These noise levels do not meet the usual criteria for annoyance or interference with individual activity, whether in terms of average level or single events. A better understanding of the intrusive effects of low levels of community noise is neede...