Author/Authors :
Mehravaran، H نويسنده Department of physics, Karaj Branch, Islamic Azad University , Karaj, Iran , , Zabani، S نويسنده Graduate Faculty of Environment, University of Tehran & Air Quality Control CO., Tehran, Iran , , Nabi Bidhendi، Gh. R. نويسنده , , Ghousi، R نويسنده Faculty of Industrial Engineering, Iran University of Science and Technology, Tehran, Iran , , Keshavarzi Shirazi، H نويسنده Graduate Faculty of Environment, University of Tehran, Tehran, Iran ,
Abstract :
The equivalent noise level in large cities has been growing due to the population growth,
uncontrolled production of cars, and the existence of worn out cars. On the other hand, heavy traffic has
increased the amount of noise problems for residents of medical and educational centers, research institutes
and residential area (or sensitive centers to noise) built in highway bounds and it has also caused and added to
their stress and discomfort. This paper presents the results of measurement of equivalent noise level (Leq
) on
various roads in Tehran. The noise maps and color contours resulted from modeling of the noise emission
sources, and the critical zones in these area have been identified through the noise pollution aspect and have
been studied and the appropriate solutions have been suggested. It is possible to decrease the level of noise
pollution in those zones effectively, through modeling and identifying the critical zones and also by presenting
noise control solution.
