Developing a model for evaluation of tire noise on different test pavement sections

Abstract EN

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 from(10-32)°C.

The test Method used in this study is the On-board sound intensity (OBSI) technique that measures tire-pavement noise at the source applying specialized microphones fixed on the right rear tire near the tire-pavement interface.

OBSI had been used withseparateprobesoundlevelmetermodelSL-4013.

The results showed for tires type (235 / 45R18)and (185 / 65R15) an average differences of about (6, 8.6, 9.4, 3) dB(A) was observed between Asphalt Concrete (AC) sections and Portland Cement Concrete (PCC) section at speed (20, 40, 60and 80) km/h.

respectively.

Noise increases in about 5-10 dB (A) for each increase of 20 km / h, and there is a decrease in the noise of about one decibel for the 10°C increase in temperature.