Abstract
The objective of this study is to develop a model for evaluating tire/ pavement noise of the various in-service pavement sections in Baghdad city. The scope of this work includes field noise measurements for three selected conventional asphalt concrete roads which are (Senaha Street constructed in 2010), Palestine Street (resurfaced in 2012) and Street2 Locality902 (newly resurfaced in 2017) and one concrete Muhammad Al-Kassim (constructed in 1983). The tested section was selected according to AASHTO TP76 which requires the length of the section to be 440 ft. at varying constant speeds such as(20,40,60,80) km/h using two types of tire (235/45R18, 185/65R15) KUMHO tire and at a different temperature
Highlights
The tire-pavement noise is a problem of increasing concern for road agencies in most developed countries
This paper explains the basic concepts of On-board sound intensity (OBSI) whose details are available in (AASHTO TP 76-12, 2011) and its development for the simple reason that the method offers itself to future implementation in pavement management systems
This paper gives an overview about noise measurement methodologies focusing on the On-Board Sound Intensity (OBSI) method with a single probe and a practical application of this technique to determine the effects of environmental conditions and vehicle speeds on tire/pavement noise
Summary
The tire-pavement noise is a problem of increasing concern for road agencies in most developed countries. OBSI is the most popular technique to measure tire-pavement noise, which gives more detail for tire-pavement noise level at the source This method has gained fame, and its use has become increasingly common in the United States because pavement acoustics can be studied in detail. This paper gives an overview about noise measurement methodologies focusing on the On-Board Sound Intensity (OBSI) method with a single probe and a practical application of this technique to determine the effects of environmental conditions and vehicle speeds on tire/pavement noise. 2. METHODOLOGY Tire-pavement noise was measured with (OBSI) technique according to the American Association of State Highway and Transportation Officials (AASHTO standard TP 76-12,2011) OBSI apparatus The diagram model of the system is presented in the right panel of Fig. 1
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