The Green building movement has already gained momentum in India. Currently, there are two rating systems prevailing in India for Green Building certification: Leadership in Energy and Environment Design (LEED INDIA) and Green Rating for Integrated Habitat Assessment (GRIHA). This paper gives the overview of these two rating systems. The approach of these systems is crisp one, which is rigid one. Fuzzy logic is opposite to the crisp logic in which every possible attempt for the environmental benefit can be considered during the evaluation process for the Green Building certification. .Authors argues that the approach of Green Building rating should be a fuzzy one, which will attract more stakeholders to go for Green Building constructions. The paper explains how a fuzzy approach can be applied to the present system of Green Building certification in the Indian context. In the end, the fuzzy comprehensive evaluation model for Green Building certification is proposed.
[...] CONCLUSION After the study of current Green building rating systems in India, it seems that they are quite rigid and strict in approach. In this case, it will be difficult to attract more stakeholders to adopt the Green Building constructions. Authors have felt that current approach is like a crisp logic and hence can be further extended into fuzzy logic. Integrated approach of Fuzzy logic with Analytic Hierarchy Process (AHP) will allow flexible and comprehensive as well as relative kind of Green Building evaluation. [...]
[...] et al5 (2004) have proposed a fuzzy comprehensive evaluation model for Green Building certification in the Chinese context. Here, the model is proposed in the Indian context. Fuzzy comprehensive evaluation model includes four main components: Factor set: F Comment/ Evaluation set: C Weight distribution vector W and Evaluation matrix of a factor: R. The steps of evaluation model are as per following: Establishing factor set F = F2, F3, F F6} = {Site selection, Water efficiency, Energy & Atmosphere, Material and resources, Energy and atmosphere, Indoor environmental quality and innovations in design}. [...]
[...] In India as on today commercial buildings are certified as Green Buildings under the LEED rating system and around 300 buildings are in the pipeline for the certification process GREEN BUIDLING RATING SYSTEMS IN INDIAN CONTEXT In India, currently two rating systems are prevailing for the Green Building certification: Leadership in Energy and Environment Design (LEED INDIA), by IGBC. Green Rating for Integrated Habitat Assessment (GRIHA), by The Energy and Resources Institute (TERI) LEADERSHIP in ENERGY & ENVIRONMENT DESIGN (LEED INDIA) 2 LEED INDIA NC is the rating system applicable to new constructions of all commercial buildings in India. [...]
[...] So, a particular building owner may only select site selection, water efficiency and indoor air quality as categories for achieving Green Building certification and may not address at all the most vital category of energy efficiency. This situation will not lead to a most required comprehensive approach of Green Building certification PRESENT SYSTEM OF RATING A CRISP APPROACH The present approach of Green building rating in India is a crisp approach in the mathematical language. Crisp approach is like yes and no for the particular issue. If, we consider earlier issue of water saving, in LEED rating system, if 20% water saving is achieved by the building then only 1 point is allocated, otherwise not. [...]
[...] The crisp approach leads to rigid kind of Green building evaluation and hence will put the hurdles in the way of attracting more and more stakeholders from the Indian construction Industry to adopt the Green building techniques FUZZY LOGIC Theory of fuzzy logic was invented by Lofti A. Zadeh a professor of U S Berkeley in California. Fuzzy logic is a superset of conventional (Boolean) logic that has been extended to handle the concept of partial truth truth values between ‘completely true' and ‘completely false'. [...]
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