ASSESSMENT ON TRAFFIC NOISE POLLUTION AND TRAFFIC CHARACTERISTICS AT DIFFERENT TYPE OF TRAFFIC FLOW FACILITIES

Traffic noise pollution has become a worldwide issue and has
been in the rise due to the rapid development in the transportation
system. This paper provides an insight into the assessments of
traffic noise pollution and the traffic characteristics at different
type of traffic flow facilities (interrupted and uninterrupted). To
achieve this study, traffic characteristic parameters (traffic
volume, travel mean speed and heavy vehicles compositions)
were determined alongside the noise indices of A-weighted
equivalent continuous noise level at both types of flow facilities.
The findings revealed that traffic noise level at uninterrupted flow
facilities was relatively higher than interrupted flow, with a
differences about 10 dBA. It is also found that composition of
heavy vehicles was the most significant (p<0.05) to the noise
level. This study provides understanding on the influences of
traffic characteristics at different type of flow facilities towards
traffic noise level.