Publications / 2017 Proceedings of the 34rd ISARC, Taipei, Taiwan

Modular vs Conventional Construction: A Multi-Criteria Framework Approach

Ahmed Hammad and Ali Akbarnezhad
Pages 214-220 (2017 Proceedings of the 34rd ISARC, Taipei, Taiwan, ISBN 978-80-263-1371-7, ISSN 2413-5844)

The use of modular construction methods for projects offers significant time and environmental improvement relative to conventional construction methods. Currently, there is a lack of appropriate assessment approaches to capture the differences between modular and conventional construction. This paper proposes a framework to aid decision makers in choosing between the latter construction methods through the integration of building information models with material libraries, project schedules and machinery inventory. A fixed set of performance parameters, whose attributes are shared among both construction methods, are defined to allow for a reasonable comparison across multiple criteria, including embodied carbon, productivity and total construction costs expended. The dynamics of the project are incorporated by modelling the various stages of the project within a building information model. The proposed framework is tested on a realistic case example, highlighting its applicability as a decision support tool for construction method selection.

Keywords: Modular Construction, Construction Methods, Prefabrication, Sustainable Construction, BIM