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Title: Building waste assessment score: Design-based tool
Authors: Ekanayake, L.L.
Ofori, G. 
Keywords: Design
Estimating system
Influencing factors
Materials waste
Issue Date: 2004
Citation: Ekanayake, L.L., Ofori, G. (2004). Building waste assessment score: Design-based tool. Building and Environment 39 (7) : 851-861. ScholarBank@NUS Repository.
Abstract: Construction waste minimisation is a topical issue in many countries. The literature shows that the design has a major influence on waste. This study was undertaken to identify major sources of site waste generation in Singapore and to develop a model to evaluate building designs from the materials waste generation point of view. The paper is based on a survey of large Singapore building contractors. The principal finding is that four pre-determined attributes under 'design'; three attributes under 'operation' and one attribute under 'material handling' were critical site waste sources. Multi-attribute value technique was used to develop the building waste assessment score (BWAS) model from respondents' ratings on a five-point Likert scale that generated weights for the building sub-systems. The building design appraisal system developed by the Building and Construction Authority in Singapore was modified and used to build the BWAS model. It is recommended that designers should use the model to prepare designs which have less potential to cause site waste. Contractors may use the model to select site management techniques which help them to face the waste challenge posed by the design. © 2004 Elsevier Ltd. All rights reserved.
Source Title: Building and Environment
ISSN: 03601323
DOI: 10.1016/j.buildenv.2004.01.007
Appears in Collections:Staff Publications

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