scholarly journals Circular Digital Built Environment: An Emerging Framework

2021 ◽  
Vol 13 (11) ◽  
pp. 6348
Author(s):  
Sultan Çetin ◽  
Catherine De Wolf ◽  
Nancy Bocken

Digital technologies are considered to be an essential enabler of the circular economy in various industries. However, to date, very few studies have investigated which digital technologies could enable the circular economy in the built environment. This study specifically focuses on the built environment as one of the largest, most energy- and material-intensive industries globally, and investigates the following question: which digital technologies potentially enable a circular economy in the built environment, and in what ways? The research uses an iterative stepwise method: (1) framework development based on regenerating, narrowing, slowing and closing resource loop principles; (2) expert workshops to understand the usage of digital technologies in a circular built environment; (3) a literature and practice review to further populate the emerging framework with relevant digital technologies; and (4) the final mapping of digital technologies onto the framework. This study develops a novel Circular Digital Built Environment framework. It identifies and maps ten enabling digital technologies to facilitate a circular economy in the built environment. These include: (1) additive/robotic manufacturing, (2) artificial intelligence, (3) big data and analytics, (4) blockchain technology, (5) building information modelling, (6) digital platforms/marketplaces, (7) digital twins, (8) the geographical information system, (9) material passports/databanks, and (10) the internet of things. The framework provides a fruitful starting point for the novel research avenue at the intersection of circular economy, digital technology and the built environment, and gives practitioners inspiration for sustainable innovation in the sector.

2021 ◽  
Vol 26 ◽  
pp. 758-762
Author(s):  
Nashwan Dawood ◽  
Farzad Pour Rahimian

This special issue of ITCON brought together ten papers on Construction 4.0 related topics. These papers are drawn from papers presented at the 20th International Conference on Construction Applications of Virtual Reality (CONVR 2021) held at Teesside University, Middlesbrough TS1 3JN, the UK, in October 2020. CONVR is one of the world-leading conferences in the areas of Virtual Reality, augmented reality and building information modelling. Each year, more than 100 participants from all around the globe meet to discuss and exchange the latest developments and applications of virtual technologies in the architectural, engineering, construction and operation industry (AECO). The conference is also known for having a unique blend of participants from both academia and industry. The overarching theme for CONVR2020 was "Enabling the development and implementation of Digital Twins."


Author(s):  
S. Shaharuddin ◽  
K. N. Abdul Maulud ◽  
S. A. F. Syed Abdul Rahman ◽  
A. I. Che Ani

Abstract. Technology has advanced and progressed tremendously, and the term city is being elevated to a new level where the smart city has been introduced globally. Recent developments in the concept of smart city have led to a renewed interest in Digital Twin. Using precise Building Information Modelling (BIM) consolidated with big data and sensors, several attempts have been made to establish digital twin smart cities. In recent years, several researchers have sought to determine the capability of smart city and digital twin for various taxonomies such as development and urban planning purposes, built environment, manufacturing, environmental, disaster management, and healthcare. Despite being beneficial in many disciplines, especially in manufacturing, built environment, and urban planning, these existing studies have shown a lack of aspect in terms of emergency or disaster-related as opposed to the elements mentioned above. This is because the researcher has not treated emergencies or disasters in much detail. Therefore, an extensive review on smart city, digital twin, BIM and disaster management and technology that revolves around these terms were summarised. In general, 39 articles from prominent multidisciplinary databases were retrieved over the last two decades based on the suggested PRISMA workflow. These final articles were analysed and categorised into four themes based on the research content, gist, and keywords. Based on the review of 39 articles related to smart city, digital twin and BIM, a workflow for the smart city digital twin and the conceptual framework for indoor disaster management was proposed accordingly. The establishment of smart city digital twins solely for an indoor emergency can be beneficial to urbanites, and it could provide numerous benefits for enhanced situation assessment, decision making, coordination, and resource allocation.


Author(s):  
Vasilios Papastamoulis ◽  
Kerry London ◽  
Robert Crocker ◽  
Petros Patias

The fourth industrial revolution transforms the built environment through several highly intelligence systems such as drones, 3D printers, robotics, as well as building information modelling (BIM) and geographic information systems (GIS). This transformation has widely been applied in buildings. However, to establish environmental sustainability in the built environment, this transformation needs to be expanded in other sectors that impact climate change such as construction and demolition waste materials. The aim of this chapter is to introduce a new conceptual model that can measure construction and demolition waste in real time and optimise their carbon footprint spatially. A quantitative methodology that embraces a measuring protocol and geospatial research method is proposed for this purpose. The proposed model is capable of measuring the recycling potential result in construction sites to support the circular economy as well as to mitigate the associated carbon dioxide emissions (CO2) with materials' embodied energy, transportation, and treatment.


2021 ◽  
Vol 294 ◽  
pp. 126352
Author(s):  
Alireza Shojaei ◽  
Roozbeh Ketabi ◽  
Mohamad Razkenari ◽  
Hamed Hakim ◽  
Jun Wang

2021 ◽  
pp. 0734242X2110528
Author(s):  
Luís Alves ◽  
Estrela Ferreira Cruz ◽  
Sérgio I Lopes ◽  
Pedro M Faria ◽  
António Miguel Rosado da Cruz

The textile and clothing industry sector has today a big environmental impact, not only due to the consumption of water and the use of toxic chemicals but also due to the increasing levels of textile waste. One way to reduce the problem is to circularise the, currently linear, textile and clothing value chain, by using discarded clothes as raw material for the production of new clothes, transforming it into a model of circular economy. This way, while reducing the need to produce new raw materials (e.g. cotton), the problem of textile waste produced is also reduced, thus contributing to a more sustainable industry. In this article, we review the current approaches for traceability in the textile and clothing value chain, and study a set of technologies we deem essential for promoting the circular economy in this value chain – namely, the blockchain technology – for registering activities on traceable items through the value chain, and the Internet of Things (IoT) technology, for easily identifying the traceable items’ digital twins.


2020 ◽  
Vol 8 (7) ◽  
pp. 143-157
Author(s):  
Evgeny Popov ◽  
Konstantin Semyachkov

The subject of the study is the development of smart cities, the effectiveness of the socio-economic systems of which is ensured by the introduction of advanced digital technologies. The research method is a logical system analysis of previous studies highlighting the development priorities of smart cities and attracting authors' results on institutional modeling of economic activity. The purpose of the study is to develop a system of sequential priorities for the development of smart cities based on institutional modeling of the stages of the formation of a digital society. As a result of the study, the author’s model of smart city development priorities is presented (the “7I” model), it is shown that the basis for the development of smart cities is the following stages: engineering infrastructure, institutes, communication and communication systems, data integration, user and technical systems interaction, innovations, application of innovation in the components of a smart city. It was determined that these stages of the development of smart cities are based on the use of advanced digital technologies and their applications: big data processing, the use of cloud technologies, digital platforms, blockchain technology, as well as shared economy, crowdsourcing, Internet of things, etc. It is concluded that the development of smart cities corresponds to the national interests of states in the formation of a digital society and ensures the safety of life in the context of the application of digital technologies.


Author(s):  
A.N. Semin ◽  
◽  
V.V. Drokin ◽  
A.S. Zhuravlev ◽  
◽  
...  

The article discusses the main directions and forms of adaptation of agricultural production experience to integration into digital platforms for the functioning of the agricultural sector. The informational and statistical basis of the study is determined; a circle of modern research centers that deal with the use of digital technologies in the agricultural sector is outlined; the technologies used in the agricultural sector are classified based on the cliometric approach, that demonstrated by analyzing the yield of grain crops in Russia from 1850 to 2019. Digital platforms for the functioning of the agro-industrial complex are highlighted, allowing to implement areas and forms of adaptation of agricultural production experience to integration into them. Concrete recommendations are given on the use of digital technologies in the field of agricultural production from the standpoint of increasing the competitiveness of agro-food products.


2021 ◽  
Vol 27 (1) ◽  
pp. 146045822098727
Author(s):  
Federico Cuomo ◽  
Nadia Lambiase ◽  
Antonio Castagna

Cities with their innovative capacity are key places to address critical climate, environmental and health challenges. Urban experimentations, such as Living Labs, can represent a starting point to reintroduce resources into the production cycle and reduce environmental impacts, embracing the paradigm of the circular economy (CE). According to recent studies, Living Labs at a city scale could generate significant environmental benefits, improvements in quality of life and positive impacts on citizens’ health.1 This paper aims at presenting the case of the Torino Living Lab on Sharing and Circular Economy (LLSC) to point out possible future scenarios of urban sustainable policies. The case study is analysed in five sections: (1) the description of the new permanent laboratory proposed by the City of Turin; (2) the past experiences of Living Labs in Turin; (3) the birth of LLSC and the involvement strategy; (4) the introduction of the eight admitted experimentations. In the light of the results collected, the last paragraph (5) came up with the Strengths, Weaknesses, Opportunities, Treaths (SWOT) analysis in the LLSC. Eventually, it deals with the research question by offering a common ground for global and local policies focused on sustainability and CE.


2021 ◽  
Vol 102 (6) ◽  
pp. 14-19
Author(s):  
Antero Garcia ◽  
T. Philip Nichols

Antero Garcia and T. Philip Nichols explore how classrooms and schools must reframe their conceptions of technology from a focus on tools that serve specific purposes to a focus on platforms and their ecologies. In doing so, they argue, educational stakeholders should attend to three different dimensions of how technology is integrated in schools: the social uses of digital technologies, the design decisions that were made about these products, and the material resources that help make them operate. This approach requires educators to ask complicated questions about what technology does in schools and how to teach with and about it.


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