Innovative Measures to Protect Residential Developments from Traffic Noise-Hong Kong Experience
Hong Kong is a hyper-dense city with over 7.3 million people living in 1,100 sq. km in which 85% of land is hilly area. Due to the need to build residential developments to accommodate the ever growing population and at the same time, the need to have very concentrated road network systems to support economic growth, residential buildings are unavoidably built next to roads. As a result, traffic noise is undoubtedly the major environmental noise problem affecting residents in Hong Kong. The Government of Hong Kong Special Administrative Region (the Government) is committed to tackle road traffic noise problem through careful planning of new residential developments and also applying latest advancement of road surfacing to reduce noise at source. Alleviating traffic noise impact on new buildings sitting next to busy highways is never an easy task, nevertheless, the Government is forward looking and has been proactively collaborating with research institutes to develop innovative noise mitigation designs such as acoustic windows and acoustic balconies. Both are capable to reduce noise substantially while allowing natural ventilation for residents. On reducing noise at source, low noise road surfacing is a standard road surfacing material for expressway. New forms of road surfacing like polymer modified stone mastic asphalt with different aggregate size and crumb rubber stone mastic asphalt are being explored and put into trial widely on local roads. This paper summarizes the efforts in addressing traffic noise problems affecting residential developments through applying innovative acoustic windows and acoustic balconies; and overlaying low noise road surfacing on local low speed roads. Both means are novel ways that can be applied under suitable situations to achieve a quieter environment for residents in Hong Kong.
traffic noise noise mitigation measures and low noise road surface
LAU Kwok-keung LEE Chee-kwan Maurice YEUNG
Environmental Protection Department, Government of the HKSAR, Hong Kong SAR
国际会议
2017世界可持续建筑环境大会(the World Sustainable Built Environment Conference)
香港
英文
585-590
2017-06-05（万方平台首次上网日期，不代表论文的发表时间）