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Digital Twins Facing the Complexity of the City: Some Critical Remarks

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  • Maria Rosaria Stufano Melone

    (DICATECh, Polytechnic University of Bari, 70126 Bari, Italy
    Laboratory for Applied Ontology (LOA), ISTC-CNR, 38123 Trento, Italy)

  • Stefano Borgo

    (Laboratory for Applied Ontology (LOA), ISTC-CNR, 38123 Trento, Italy)

  • Domenico Camarda

    (DICATECh, Polytechnic University of Bari, 70126 Bari, Italy
    Laboratory for Applied Ontology (LOA), ISTC-CNR, 38123 Trento, Italy)

Abstract

The concept of a digital twin (DT), rooted in mid-20th-century ideas, has recently gained significant traction even outside software simulation and engineering modeling. The recent advancements in computational power and the development of model integration methodologies have enabled the creation of virtual replicas of complex physical objects. The success of DTs in engineering has also pushed for the exploration of their use in other domains, especially where complex systems are at stake. One of these cases, which is the focus of this paper, is the modeling of cities and the way they are transformed via technologies into so-called smart cities. In these systems, the huge amount of data that are made accessible and constantly updated via sensor networks suggests that one can use DTs dedicated to the urban scenario as data-driven decision-making devices. However, the concept of a DT was not developed for socio-technical systems and requires careful analysis when applied to urban scenarios. While technologies and information systems have become integrated into city management, this has not reduced the complexity of the city. Relying only on sensory data for city modeling and management seems pretentious since detectable data (what is made accessible via sensor networks) do not seem suitable to inform on all important aspects of the city. Urban DTs hold promise, yet their development necessitates careful consideration of both opportunities and limitations. For this goal, it can be helpful to exploit an ontological analysis due to its neutral and systematic approach and to look at a city as a system of intertwined relationships across its components, such as places, agents, and knowledge. The variety of interactions that the components manifest highlights aspects of the city that the type of data we can collect today leaves unexplored. The paper presents a preliminary example of this issue by studying cases of city squares. The final part of this paper is a call to analyze DTs’ potential role in urban contexts and become aware of the intrinsic limitations of the data they rely upon.

Suggested Citation

  • Maria Rosaria Stufano Melone & Stefano Borgo & Domenico Camarda, 2025. "Digital Twins Facing the Complexity of the City: Some Critical Remarks," Sustainability, MDPI, vol. 17(7), pages 1-20, April.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:7:p:3189-:d:1627591
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    References listed on IDEAS

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