Innovative Noise Mitigation Measure- Baffle Type Acoustic Window
* Presenting author
Hong Kong is one of the densely populated area in the world with residential sites surrounded by traffic roads. Road traffic noise pollution problem becomes a major environmental issue for residents in Hong Kong. In an attempt to tackle road traffic noise impact on residents and ensure good quality of individual’s health and well-being, an innovative measure called Baffle Type Acoustic Window has been proposed, which designs to benefit residents from environmental noise planning and building ventilation’s aspect. It consists of two glazing: (i) an outer openable window and (ii) an inner sliding panel with air gap in between. The inner sliding panel is situated right behind the outer openable window. To investigate the acoustic performance of Baffle Type Acoustic Windows with different design parameters, a series of acoustic laboratory tests have been carried out in accordance to ISO Standard to discover the relationship between the key design parameters of the window (e.g. width of overlapping between sliding panel and the window system, size of outer window opening and acoustic material used etc.) and its corresponding acoustic performance.