Vol 7, No 4 (2016) > Civil Engineering >

The Green Construction Site Index (GCSI): A Quantitative Tool used to Assess an Ongoing Project to Meet the Green Construction Concept

Ferry Firmawan, Fadil Othman, Khairulzan Yahya, Zaiton Haron

 

Abstract: The
development of the construction industry in Indonesia has been substantially
contributing to the enhancement of the social and economic development of the
people. However, its expansion has also become an issue, as the development
might be implicated in the abuse of environmental sustainability when the
practices of conducting the construction project abandon the rules and regulations
of sustainable green construction concepts. Therefore, this study attempted to
introduce a quantitative assessment tool called the Green Construction Site
Index (GCSI) to evaluate the performance of an ongoing project to meet the
sustainable green construction concept. The aim of this study was to
investigate the effectiveness of GCSI as a quantitative assessment tool to
measure the implementation of the green construction concept conducted by
ongoing projects. Data were collected by onsite direct observation, interviews
with key personnel, and project documentation review. Data were organized and
analyzed using descriptive elaboration. The results showed that three aspects,
the Efficiency Index (IE), Productivity Index (IP), and
Awareness Index (IA), were effective in assessing 10 ongoing
construction projects, categorized as Non-Commercial Non-Residential Building,
Commercial Residential Building, and Commercial Non-Residential Building. The
index generated using GCSI, upon assessing 10 buildings, was 3.39 and fell into
the Good category with IE = 3.51, IP = of 2.86, and IA
= 3.84. Another finding shows that the Project Organizational Commitment
Index (POCI) to the indicator of
the GCSI was 3.31 (Good category) with IPOL = 3.36, IPRO =
3.49, and IPRAC = 2.75. The capability of the GCSI to identify three
aspects within a construction project simultaneously and comprehensively
suggests the importance of its function as an effective tool that gives
benefits to not only the contactors, but also to the authorities that control
the green construction–related performance. Therefore, the GCSI is expected to
be applied as a standardized reference by both the construction industries and
regulating authorities. Despite its satisfactory findings, the GCSI needs to be
furthered to achieve its reliability and validity to be adopted internationally.
Keywords: CGSI; Concept; POCI; Project; Tool

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