Establishment of sustainable design criteria for Malaysian green highway index

Abstract

The green rating system becomes a popular tool to confirm the green credential of an infrastructure. Malaysia has established the green rating system for building but not for highway. The aim of this study was to identify the suitable sustainable design criteria and sub-criteria of the green highway criteria for Malaysian Green Highway Index. The objectives of this study were to identify the suitable criteria and sub-criteria for sustainable design; and to identify the weighting of sustainable design highway criteria. The information was gathered from journals, books, conference papers, internet and others country green rating system manual. Other than that, it also included the discussion with the experts and questionnaire distribution. Experts are the academician, professional from government agency and private sector that have been involved in highway projects. This study focuses on the suitable design criteria for expressway and toll highway. The suitable design criteria and sub-criteria of sustainable design was analysed using the factor analysis. From the analysis, there are two criteria and seven sub-criteria of sustainable design that is suitable with Malaysian highway condition. Factor score were determined by multiplying the factor loading with a mean of each sub-criteria. Factor score were used as a weighting for determine the score point of sustainable design criteria and sub-criteria