On implementation of waste management systems in the Hong Kong construction industry using spectral methods

The Hong Kong government has implemented various measures for reducing waste generation, including a waste disposal ordinance, a green manager scheme, a waste reduction framework plan, a pilot concrete recycling plant, waste management plans and a landfill charging scheme. However, a large amount of construction and demolition waste is still generated everyday. This paper examines the existing implementation of waste management systems in the Hong Kong construction industry. Questionnaire survey and structured interviews are conducted. Power spectra of the survey data is introduced for assessing the existing implementation. It is found that improving environmental performance is ranked as the least project scope for construction projects. Benefits and difficulties of implementing waste management systems are highlighted. Recommendations to improve the existing implementation of waste management systems are also discussed.