Esnek ve Rijit Yol Üst Yapýlarýnda Gürültü Seviyelerinin Eþ Zamanlý Ölçümü ve Analizi

Beton yollar dünyada yaygýn olarak kullanýlmasýna karþýn ülkemizde geliþim gösterememiþ, bu nedenle de genel olarak bitümlü sýcak karýþým asfalt yollar tercih edilmiþtir.
Bu çalýþmada, Türkiye’de yaygýn olarak kullanýlan bitümlü sýcak karýþým asfalt yollar ve henüz yaygýnlaþmamýþ olan beton yollar arasýnda gürültü seviyeleri yönünden bir karþýlaþtýrma yapýlmýþtýr. Bunun için Afyonkarahisar-Emirdað arasýnda inþa edilmiþ 2 km’lik beton yol ile bu yolun devamý olan bitümlü sýcak karýþým asfalt yol arasýndaki geçiþ noktasý çalýþma koridoru olarak kullanýlmýþtýr.
Bu koridordaki beton yol ve bitümlü sýcak karýþým asfalt yolun kenarlarýna, ses giriþimlerini en aza indirecek þekilde, ayrý ayrý gürültü ölçüm cihazý ve kamera düzenekleri yerleþtirilmiþ, yol yapým malzemesine baðlý olarak deðiþen gürültü seviyeleri eþ zamanlý olarak kaydedilmiþ, bulunan deðerler analiz edilerek kaplama türleri ile gürültü seviyeleri arasýndaki iliþki araþtýrýlmýþtýr. Bu aþamada, kurulan düzenekler arasýndaki mesafe trafik yoðunluðunun ve akýþ hýzýnýn deðiþimini engellemek için mümkün olduðunca kýsa tutulmuþtur.
Yapýlan ölçüm ve analizler sonunda beton yollarýn bitümlü sýcak karýþým asfalt yollara göre ortalama gürültü seviyesinin ayný taþýt kompozisyonu ve trafik hacmi için yaklaþýk 4 dB(A) daha düþük olduðu ortaya konmuþ ve ülkemizde de beton yollarýn geliþim göstermesi gerektiði vurgulanmýþtýr.

Simultaneous Measurement and Analysis of Noise Levels in Flexible and Rigid Pavements

Although concrete roads have been used worldwide for years, the same improvement could not exist in Turkey and therefore, bituminous (hot mix) asphalt roads were preferred instead.
In this paper, the vastly built HMA (Hot Mix Asphalt) roads and rarely preferred concrete roads were compared based on their level of noise. For this purpose, the concrete road at the length of 2 kilometers between Afyonkarahisar and Emirdag; also the transition point to the HMA road (which continues after the concrete road) was observed.
Both concrete and HMA road ends of this transition point was equipped with a noise measurement device and a camera was installed separately for providing minimum level of noise interference. Consequently, change in the noise levels depending on the building material of roads was recorded simultaneously. These factors was analysed and various models related to the sort of coating was provided. At this stage, the distance between set up points was kept as short as possible in order to prevent different results in the density of traffic and also in the flow rate.
Result of various measurements and analysis provided the noise levels of concrete roads being 4 dB(A) less than HMA roads in the comparison based on the same level of vehicle composition and traffic flow. Encouraging the construction of concrete roads in our country is emphasized accordingly.