Managing noise and vibration on mega projects in Australia

Abstract

The last decade has seen the emergence of the mega project in Australia, including Sydney Metro, WestConnex, Western Sydney Airport, Cross River Rail, Melbourne Metro, and North East Link Project. These projects provide challenges in the management of noise and vibration due to site constraints, proximity to sensitive receivers and condensed project timelines. While the environmental noise and vibration regulation of these projects can differ from state to state, the design process remains largely the same. This paper looks at noise and vibration design and management on some of Australia’s biggest infrastructure projects. Design considerations include physical mitigation measures such as acoustics sheds, noise barriers, temporary noise barriers or enclosures, and ventilation mitigation. Management measures and development of ongoing management tools are described. Finally, this paper reflects upon the overall noise and vibration outcomes in terms of impacts on the affected communities compared with cost of mitigation.