Marshall Day Acoustics – Environmental noise and vibration impact and assessment

The field of environmental acoustics encompasses a wide range of study areas ranging from policy development, review and validation of environmental noise prediction models, assessment of environmental noise & vibration impact and the design of noise & vibration control measures.

Common to all is the requirement to have noise and vibration assessed to Local Authority or World Health Organisation guidelines in order to provide protection against sleep disturbance and loss of community amenity

WIND TURBINE UNDER CONSTRUCTION

Environmental Projects

	ROADS: EASTERN FREEWAY, Melbourne Australia: This project helped to shape the future of noise barrier design in Melbourne. These award-winning noise barriers were developed based on the acoustic design prepared by Marshall Day Acoustics for the State Road Authority, VicRoads.This extension to the Eastern Freeway in Melbourne was located at the bottom of a narrow valley, with residential areas looking down on the roadway. This site geometry led to noise barrier heights (relative to the road) of up to 12 metres. This led to significant visual amenity issues, which were addressed by the revolutionary architectural design by Wood Marsh Architecture. MORE ROADS >
	PORTS: FERGUSSON CONTAINER TERMINAL, AUCKLAND , NEW ZEALAND: The Port of Auckland is New Zealand 's largest and busiest port, located close to the centre of the city. The port wished to expand the existing 18 hectare container terminal by about 60%. Marshall Day Acoustics carried out extensive noise monitoring in near-by residential areas. Computer noise models were developed of existing and future noise levels. Work is on-going. Noise loggers are located on site and are regularly checked against predicted levels. Planning is now underway to allow the port to accommodate the new generation of larger container vessels.
	RAIL: AIRPORT RAIL LINK, Melbourne: When a rail link from Melbourne Airport to the city was first investigated, the diversity and severity of the community concerns was enormous. When it became clear that an in-depth noise and vibration assessment was necessary, Marshall Day Acoustics was commissioned by the Victorian Department of Infrastructure.As for all our major transport impact assessments, the Melbourne Airport Rail Link proposal was evaluated in terms of community effects such as annoyance, sleep disturbance and speech interference. This applied both to noise impacts and to vibration impacts.