Author/Authors :
عزيز، شكر قرني نويسنده Department of Civil Engineering, College of Engineering, University of Salahaddin –Erbil, Iraq Aziz, Shuokr Qarani , لولوسي، م نويسنده School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia Lulusi, M , اساري، فريده آ چ نويسنده School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia Asaari, Faridah A.H. , راملي، نور اعظم نويسنده School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia Ramli, Nor Azam , عزيز، حميدي عبدل نويسنده School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia Aziz, Hamidi Abdul , عبد مجيري، امين نويسنده , , عمر، محمد عبدالحليم نويسنده دانشگاه قاهره؛ دانشگاه الازهر مصر ,
Abstract :
Road traffic noise has become an important factor in societal development. Traffic noise from motor vehicles can inflict serious damage to human health and reduce labor productivity. Traffic noise measurements were taken at two locations: Bukit Mertajam, a developing town in Malaysia, and Erbil City, the regional capital of Iraqi Kurdistan. Field measurements were taken simultaneously with traffic volume measurements in Bukit Mertajam, and then validated using various models. The NAISS model represented the field measurements better than did the other models used. The noise level was higher during peak hours, particularly during evenings when there were increased traffic volumes and a higher percentage of heavy vehicles. The average noise level exceeded the guidelines set by the Malaysian government. The sound pressure levels (SPLs) for Erbil City were higher during mornings, and decreased as distance increased. The correlation coefficient obtained for SPL and the distance between the sound source and receiver indicates a good relationship.
