Abstract
The research aims at analyzing the integration of Waste Management (WM) strategies and Information management in the construction procurement process. The application of Building information modelling (BIM) methodologies for a Most Economically Advantageous Tender could address the digital transition in order to adopt environmentally sustainable practices. Despite the wide regulation regarding waste minimization, an overview of which is provided, AECO is still one of the most polluting industrialized sector. Drivers and barriers to the method, and a literature review are provided: BIM approaches to enable WM practices have been analyzed from the designer and constructor’s point of view, but few studies investigated the role of the Client, in particular the Public Client. The goal of the study was to evaluate the efficiency of Most Economically Advantageous Tender and a BIM methodology to promote WM strategies during the tender phase. Design Build (DB) and Design Bid Build (DBB) procurement models are tested through three case studies of Italian schools' calls for proposals: the BIM model enabled to verify the bids in terms of WM strategies implementation. Blockchain and Smart contract future applications are also investigated in order to ensure transparency of the whole process. The Public Client could trigger a change in the construction sector regarding the integration of WM practices, as a central and active actor of the construction process, through the application of Green Public Procurement and BIM methodologies.
Highlights
Method and Criteria for Bid Evaluation One of the main innovations introduced by D.Lgs. 50/2016 is the introduction of the reward criterion with Most Economically Advantageous Tender (MEAT), based on the quality/price ratio calculated on the life cycle of the building
Where QiRiu, m indicates the amount of mth material to be reused, related to the ith offer, QiRic,m indicates the quantity of mth material to be recycled for the ith offer, QiSma,m indicate the quantity of mth material to be disposed for the ith offer, and QiSma,p indicates the quantity of pth material to be disposed of for the ith offer
Increasing global urbanization has resulted in high levels of waste
Summary
Increasing global urbanization has resulted in high levels of waste. The built environment consumes more natural resources than necessary. The World Resource Institute study (Matthews et al 2000) shows that “one half to three quarters of the annual material input was returned to the environment as waste within 1 year in industrialized countries like Austria, Germany, Japan, The Netherlands and United States.”. Digital Transition and Waste Management in AECO Industry. European Union (EU) have realized and are claiming that resources are finite and that nature can no longer absorb the vast quantities of waste produced by humankind. In 2019 waste production was still increasing. In order to contrast the waste phenomenon, European initiatives involving municipalities, companies and citizens’ groups are encouraging its members to commit to the elimination of residual waste, thereby ending landfill and incineration as waste management (Waste Managemen) practices.
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