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Abstract
The highway construction industry has a favorable impact on traffic services when road operations and maintenance effectively provide convenience for users and society in terms of environmental life cycle sustainability. The project procurement process that leads to contract launch is an important part of the construction industry. Alternative contracting methods (ACMs) such as A+B bidding are relatively popular in reducing the duration of road projects, with the main purpose of reducing road user costs. To realize the Sustainable Development Goals (SDGs) launched by the United Nations (UN), the addition of SDG components should be recommended as an integrated part of determining the winning tender for roadway construction projects. This paper is the first to offer a theoretical concept to incorporate the relevant SDGs into ACM to regulate the contractor winning the tender for highway construction projects.
Keywords: Sustainable Development Goals; Alternative contracting methods; A+B bidding method; roadway project procurement.
(ProQuest: ... denotes formulae omited.)
Introduction
In recent years, following up on the 2015 UN SDGs that intend to improve and secure the sustainability of the earth's life cycle, all countries in the world (including the elements within them) have taken an active role in realizing these goals. The focus of these sustainable development goals is directed at three significant dimensions of development: environmental, economic, and social.
Construction project activities, especially transportation infrastructure, are significant in affecting the survival of ecosystems and have the potential to destroy biodiversity (Myklebust & Myklebust, 2018). Therefore, this should be a consideration in the early part of the project cycle (Opoku, 2019). This implies that the delivery process of transportation projects must actively contribute to environmental sustainability, which is also closely related to social and economic life.
Alternative contracting methods (ACMs) have been successful in reducing the number of days (Chen et al., 2016; Hale et al., 2009; Herbsman, 1995; Molenaar & Songer, 1998) in road construction projects such as lane widening, resurfacing, rehabilitation, and reconstruction, as well as bridge repair and replacement projects on operating roads. One type of ACMs is the A+B bidding method, which is a bid for (1) the construction cost, and (2) the time to complete the project. Both (cost and time) of the project are proposed by the bidder. From that combination,...