A STUDY ON KINEMATICS OF TRAFFIC NOISE

Abstract

Disturbance caused by traffic noise is one of the most important environrnental health consequences of the transport system. Over a number of years, investigations in different countries have shown that noise affects different activities and causes sleep disturbance and a poor life quality. So, there is thus a great need to control noise caused by road transport. The noise level when exceed 65dB, it is meant as annoyance, this becomes causative factor of creating the unacceptable parameters by the human beings and the added significance of noise pollution to the environment. In the present study, traffic noise characteristics such as equivalent continuous sound level (Leq), sound pressure level (SPL), frequency, and speed have been investigated as kinematics with the induction of data. Noise measurements have been recorded on the national highway (NH58) for traffic noise levels at selected noisy locations in Roorkee town. Noise Analyzer Module-2260 from Bruel & Kjaer, the noise investigator software BZ7210 have been used to record the continuous measurement. For the data recorded and induced in wave equation solution, it is found that value of permeability (kc) as 5.52x102 which strongly recommends that noise level is unacceptable. Noise pollution level ranges between 86.2 to 91.3, and the Leq values ranges between 77.3 to 83.1 which is clearly unacceptable as per noise exposure standards.