Investigation and development of an empirical model for transmission loss of acoustic windows in alleviating road traffic noise impact

An Acoustic Window is comprised of a horizontal sliding window at the inner layer, and side-hung window, which can be pushed to open, on one side outer fixed glazing other side. The serves as “baffle” for screening off noise passing through opened when it slid behind window. This baffle-type acoustic proved reduce up 8 dB(A) road traffic gaining popularity in residential developments Hong Kong, particularly those located difficult sites close proximity heavily trafficked roads. paper presents experimental results from study looking into acoustical transmission loss Windows with respect changes configuration setting line sources. Based results, empirical models reduction are developed investigated assist quick design planning developments.