33 traceability of materials, calculation of their carbon impact, and planning of their deconstruction and recycling. In recent years, BIM has been used in the construction of major infrastructure such as Istanbul airport (Turkey), one of the largest in the world and Baku National Stadium (Azerbaijan), entirely designed using BIM to be as energyefficient as possible. DIGITAL TWINS FOR REAL-TIME PERFORMANCE OPTIMIZATION Digital twins are virtual models of objects designed to accurately reflect a physical object, such as machines or buildings, created using precise and continually updated data. Fed by Internet of Things (IoT) sensors installed on equipment, they collect direct information from their use. Integrated into the BIM process, they offer a virtual representation, a real “living” parallel version of the project in real time throughout its life cycle. Sustainable construction players use them, among other things, to optimize resources, monitor energy efficiency, predict maintenance needs, and reduce GHG emissions. Ranked at the top of IMD’s(2) Smart City Index in 2020 and 2021, the city-state of Singapore has created its “Virtual Singapore” digital twin in collaboration with the French software company Dassault Systèmes, to obtain real-time information about temperature, humidity, sunshine, traffic, or noise levels, that is useful for optimizing the city’s functioning. (1) Barometer on the use of digital technology and BIM by construction professionals. (2) The International Institute for Management Development is a management school based in Lausanne (Switzerland) and Singapore. 48% of construction industry players consider BIM to be a strategic priority(1) Inaugurated in 2018, Istanbul Airport (Turkey) used digital technologies in its design and construction, to limit its environmental impact. DISCOVER the full article in our online magazine Constructing a sustainable future
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