Towards a unified system of noise assessment

Robinson, D. W.

doi:10.1016/0022-460x(71)90367-1

Cited by 68 publications

(32 citation statements)

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“…Near residential area L 10 is 79.8 dBA and at intersection L 10 was 85.45 dBA. Traffic Noise Index (TNI) and Noise Pollution Index (NPL) (Langdon and Scholes, 1968;Robinson, 1971) have been calculated at different locations and values are provided in Table 5. For distance measured less than 10 meter acceptable TNI should less than 70 dBA (Langdon and Scholes, 1968) but in the selected locations TNI values exceed the acceptable limit.…”

Section: Resultsmentioning

confidence: 99%

Pedestrian Response to Road Traffic Noise for Medium Size City in India

Das¹,

Parida²,

Katiyar³

2015

IJTTE

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Level of vehicular noise pollution is one of the major factors to choose pedestrian mode of transportation among other modes of transportation. Transportation systems and their related outcomes are responsible for ensuring safe travel options, including walking people of all ages and different abilities. This study will provide an opportunity to quantify the environmental impact in terms of noise level for future development and planning of pedestrian infrastructure in India. It will also help in modal shifting towards walking, improvements in energy efficiency, and the impact of specific contaminants on health. Exposure of high noise level can cause annoyance and severe stress on auditory and nervous system of pedestrians. Most of the Indian cities have noise level above than acceptable limits because of rapid urbanization with increasing number of vehicular traffic. The objective of this study is to study response of pedestrians towards noise pollution in Roorkee at different locations based on different land use. Roorkee is a medium size city with a population of 2.73 lakhs (Roorkee Metropolitan areas, 2011 census), situated in Uttarakhand, India. It is a city with large number of educational institutions and sizable numbers of student population. Noise level study has been carried out at ten locations on NH-58 near Indian Institute of Technology Roorkee. Noise data was collected at an interval of 30 seconds. Design implications for future improvement of pedestrian infrastructure have been presented in this paper considering traffic noise as an environmental factor. It is expected that the study outcome shall be useful in understanding positive effect of low traffic noise encouraging increased usage of pedestrian facilities within urban transport network.

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Section: Resultsmentioning

confidence: 99%

Pedestrian Response to Road Traffic Noise for Medium Size City in India

Das¹,

Parida²,

Katiyar³

2015

IJTTE

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“…Der Mittelungspegel (q = 3) ist bei der Lärm-schwerhörigkeit dies Schlüsselgröße [7 ]. Andererseits haben Verkehrslärm-Untersuchungen gezeigt, daß die Störwirkung erheblich auch von der Differenz zwischen 10%-und 90%-Wert abhängt [8]. Untersuchungen von Robinson zeigen, daß noch eine Reihe von anderen Kenngrößen mit der Stör-wirkung gut korrelieren [8].…”

Section: Trennung Von Fremd-und Werksgeiäuschenunclassified

Messung der Schallimmission in der Umgebung von großflächigen Industrieanlagen/ Measuring of noise immission in the neighbourhood of expanded industrial plants

Kühner¹

1977

Tm - Technisches Messen

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Anhand von Resultaten, die mit neuen automatischen Schallmeßtechniken in der Nachbarschaft von Chemiewerken ermittelt wurden, werden Probleme bei der Anwendung der geltenden gesetzlichen Bestimmungen diskutiert und Ände-rungsvorschlägegemacht. Des weiteren wird ein Konzept zur statistischen Absicherung von Vergleichen zwischen Meßwerten und Richtwerten dargestellt. Using the results obtained from ambient noise measurements in the neighbourhood of chemical plants by use of a new automatic technique, problems concerning the application of noise regulations are discussed and suggestions for their reformulation are made. Additionally, a new concept is presented for a statistical based comparision between measured values and threshold values.

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“…Equations ͑2͒ and ͑3͒ show Griffiths' traffic noise index ͑TNI͒ and Robinson's noise pollution level (L NP ), which are examples of indices that attempt to measure the annoyance of nonsteady sounds. 5,6 Both indices contain components which quantify the spread in the level distribution. In TNI, the difference in the level exceeded 10% of the time (L 10 ) and that exceeded 90% of the time (L 90 ) is used to quantify the spread while L 90 alone is used as a measure of the ambient background noise.…”

Section: Introductionmentioning

confidence: 99%

Subjective evaluation and objective quantification of automobile strut noise

Amman¹,

Greenberg²

1999

Noise Control Eng. J.

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This paper addresses the issue of quantifying the impulsive strut noise experienced by automobile customers in some vehicles. The work performed here uses the method of paired comparisons to quantify customer responses to strut noises binaurally recorded in 14 different vehicles. These evaluations showed that customers were able to repeatably and consistently discern between struts that may generate warranty claims and those that would not. From their subjective responses, perceptually based objective measures were developed that were able to characterize their opinions. These objective measures were indicative of the loudness and loudness fluctuation as characterized by the average loudness "N avg … and standard deviation of the loudness time history " N(t) ), respectively. The loudness time history was produced using a time-varying loudness model which incorporates both temporal masking and temporal integration aspects. These metrics were shown to be robust across vehicle body style and recording location. Additionally, a semantic differential jury evaluation was conducted to aid in the target-setting process. Regions in which N avg and N(t) resulted in acceptable levels of strut noise were identified. Finally, some practical considerations in both the test and analysis procedures were identified. © 1999 Institute of Noise Control Engineering. †S0736-2501"99…00501-9 ‡

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Towards a unified system of noise assessment

Cited by 68 publications

References 0 publications

Pedestrian Response to Road Traffic Noise for Medium Size City in India

Pedestrian Response to Road Traffic Noise for Medium Size City in India

Messung der Schallimmission in der Umgebung von großflächigen Industrieanlagen/ Measuring of noise immission in the neighbourhood of expanded industrial plants

Subjective evaluation and objective quantification of automobile strut noise

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