THE RELATION BETWEEN QUANTITIES OF EQUIVALENT SOUND PRESSURE LEVEL AND STATISTICAL LEVEL, AND TRAFFIC NOISE INDEX WITH TRAFFIC FLOW AND VELOCITY FACTORS IN SHEYKH FAZLOLLAH NOORI FREEWAY IN TEHRAN

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NASIRI PARVIN; FARAHMAND FARHANG

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Paper Information

Journal: JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY Year:2004 | Volume:- | Issue:19 Page(s): 51-65

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Title

THE RELATION BETWEEN QUANTITIES OF EQUIVALENT SOUND PRESSURE LEVEL AND STATISTICAL LEVEL, AND TRAFFIC NOISE INDEX WITH TRAFFIC FLOW AND VELOCITY FACTORS IN SHEYKH FAZLOLLAH NOORI FREEWAY IN TEHRAN

Author(s)

NASIRI PARVIN | FARAHMAND FARHANG | Issue Writer Certificate

Keywords

TRAFFIC FLOUIQ3

VELOCITYQ4

EQUIVALENT SOUND PRESSURE LEVELQ3

NOISE POLLUTIONQ4

Abstract

Noise pollution has caused numerous adverse effects as well as mental and physical problems. Therefore it seems to be of vital importance to measure accurately and find the methods to reduce or somehow to control the NOISE POLLUTION. NOISE POLLUTION in developed countries poses as great a problem as other environmental pollutions. In metropolitan cities traffic flow in freeways and the VELOCITY at which the vehicles move along have made traffic, as one of the most important source of environmental NOISE POLLUTION.In this study the level of traffic NOISE POLLUTION in Sheykh Fazlollah Noori Freeway was measured. In this cross sectional study the route was divided into stations, then EQUIVALENT SOUND PRESSURE LEVEL was measured. The results showed that the noise levels are higher than the suggested permitted levels by the Department of the Environment.The traffic flow and VELOCITY of vehicles were calculated by the distance, time and manual counting methods and the regression curves were drawn.The results showed no significant relation between sound level and two factors, traffic flow and VELOCITY. Study of statistical level (LN). traffic noise index (TNI), traffic flow and vehicles VELOCITY showed no direct and meaningful relation between them. Same results were obtained for maximum values of LN, TNI, for some measuring stations.

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APA: Copy

NASIRI, PARVIN, & FARAHMAND, FARHANG. (2004). THE RELATION BETWEEN QUANTITIES OF EQUIVALENT SOUND PRESSURE LEVEL AND STATISTICAL LEVEL, AND TRAFFIC NOISE INDEX WITH TRAFFIC FLOW AND VELOCITY FACTORS IN SHEYKH FAZLOLLAH NOORI FREEWAY IN TEHRAN. JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, -(19), 51-65. SID. https://sid.ir/paper/87293/en

Vancouver: Copy

NASIRI PARVIN, FARAHMAND FARHANG. THE RELATION BETWEEN QUANTITIES OF EQUIVALENT SOUND PRESSURE LEVEL AND STATISTICAL LEVEL, AND TRAFFIC NOISE INDEX WITH TRAFFIC FLOW AND VELOCITY FACTORS IN SHEYKH FAZLOLLAH NOORI FREEWAY IN TEHRAN. JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY[Internet]. 2004;-(19):51-65. Available from: https://sid.ir/paper/87293/en

IEEE: Copy

PARVIN NASIRI, and FARHANG FARAHMAND, “THE RELATION BETWEEN QUANTITIES OF EQUIVALENT SOUND PRESSURE LEVEL AND STATISTICAL LEVEL, AND TRAFFIC NOISE INDEX WITH TRAFFIC FLOW AND VELOCITY FACTORS IN SHEYKH FAZLOLLAH NOORI FREEWAY IN TEHRAN,” JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, vol. -, no. 19, pp. 51–65, 2004, [Online]. Available: https://sid.ir/paper/87293/en

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