Study on impact of noise annoyance from highway traffic in Singapore City

Abstract

This study uses traffic noise mapping and structural equation model to evaluate the impact of noise annoyance from highway traffic noise. The indices generated in noise maps by CityMap have verified the actual field measurements obtained from the site. Structural Equation Model addresses the relationship between noise annoyance and psychological factors. The results show that the noise annoyance is mainly shaped by the subject's concern and noise disturbance including the negativity on perceived disturbance and noise sensitivity. The noise levels are affected by the type of vehicles in the road, mainly on the heavy truck with more axles instead of the count of vehicles only. The traffic noise level can exceed the permissible limit established by a local government agency at a particular time of the day and on an overhead bridge situated near the vicinity of the residential area.