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Traffic noise levels and restrictions
in Alexandria city, Egypt

Research Authors
Sayed Abas Ali
Research Member
Research Year
2014
Research Journal
International Journal of Applied Engineering and Technology
Research Vol
Vol. 4 No. 1
Research Rank
1
Research Abstract

This study concerns road traffic noise in Alexandria, the second biggest city in Egypt. Goals of this study are to carry out measurements to evaluate road traffic noise levels, are these levels exceeded permissible noise levels set by Egyptian noise standard and policy to protect public health. To carry out restrictions to reduce noise levels for improving environmental conditions. Measurements taken for traffic noise levels, indicates that noise levels are higher than those set by Egyptian noise standards. Ldn = 80 dB and higher were recorded, while maximum permissible level is 60 dB. Ldn are calculated for 22 locations spread over different urban zones of city. It was found out that 95.5 % out of locations display Ldn are over 65 dB. 86.4 % out of total number of locations their Ldn are over 70 dB. Results of restrictions found that (i) in absence of horns, Ldn decreased at all sites reduction was 11.2 dB occurred in downtown area. (ii) In absence of horns, trucks and buses reductions in Ldn range between 6.2 to 14.3 dB. This shows that town planner can use various strategies to change traffic composition in order to achieve quieter city environments.