A dfx-based approach for incorporating sustainability in infrastructure project planning

This paper investigates how the "Design for Sustainability" mindset of the manufacturing sector can be effectively transferred in the context of construction and proposes appropriate implementation tools for the promotion of sustainability in infrastructure projects' planning and design. The Design for Excellence (DfX) approach is first investigated in the context of manufacturing through the review of related literature, and the goals of Design for Sustainability (DfS), in particular, are specified. The suggestions of the literature are used as a basis for the development of the conceptually equivalent goals in the context of infrastructure projects and to highlight the construction management strategies which qualify as potential DfS tools. This paper presents how well-known construction planning and management methods, techniques or strategies such as cost-benefit analysis, sustainability-driven procurement, contractors' involvement in design, value-based design, building information modeling (BIM) and buildability review enable the holistic promotion of the triple bottom line in feasibility, design and procurement of infrastructure projects, when combined in the context of an integrated planning approach. The DfX mindset has very limited presence in the construction literature. This paper attempts to conceptualize its scope in the context of infrastructure projects while putting the multidimensional concept of sustainability as primary planning and design consideration. The proposed planning approach and the systematic mapping of the respective implementation tools can facilitate the decision-makers to achieve the desired sustainability benefits, in line with their priorities.