1 ENVIRONMENTAL ASSESSMENT BY POWER SPECTRUM

Environmental Performance Assessment (EPA) is a critical tool of the EMS in checking, reviewing, monitoring and evaluating environmental performance of organizations. This paper identifies the most important EPA criterion in a set of criteria developed by Tam et al [1, 2] using novel spectral methods. From that, effective ways on improving environmental performance and preventing further damage to the environment can be devised for organizations in the construction industry. In particular, the correlation of the most dominant criterion can be found which further enhances environmental performance of organizations. This paper also shows that not only improvement on environmental performance of organisations can be achieved by identifying the most dominant criterion, but also their efficiency, productivity and customer satisfaction. The power spectral method has been widely used in the field of signal processing for many decades and it is believed that these have never been employed in the field of environmental management. This paper shows the effectiveness and validity of these methods in the field of environmental management