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- Ketzler, Bernd, 1982, et al.
(författare)
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Digital Twins for Cities: A State of the Art Review
- 2020
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Ingår i: Built Environment. - : Alexandrine Press. - 0263-7960. ; 46:4, s. 547-573
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Tidskriftsartikel (refereegranskat)abstract
- During the last decades, a variety of digital tools have been developed to support both the planning and management of cities, as well as the inclusion of civic society. Here, the concept of a Digital Twin – which is rapidly emerging throughout many disciplines due to advances in technology, computational capacities and availability of large amounts of data – plays an important role. In short, a digital twin is a living virtual model, a connected digital representation of a physical system and has been a central concept in the manufacturing industry for the past decades. In this article, we review the terminology of digital twins for cities and identify commonalities and relations to the more established term 3D city models. Our fi ndings indicate an increasing use of the term digital twin in academic literature, both in general and in the context of cities and the built environment. We fi nd that while there is as yet no consensus on the exact defi nition of what constitutes a digital twin, it is increasingly being used to describe something that is more than a 3D city model (including, e.g. semantic data, real-time sensor data, physical models, and simulations). At the same time, the term has not yet replaced the term 3D city model as the most dominant term in the 3D GIS domain. By looking at grey literature we discuss how digital twins for cities are implemented in practice and present examples of digital twins in a global perspective. Further, we discuss some of the application areas and potential challenges for future development and implementation of digital twins for cities. We conclude that there are signifi cant opportunities for up-scaling digital twins, with the potential to bring benefi ts to the city and its citizens and clients.
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| 2. |
- Latino, Fabio, 1990, et al.
(författare)
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Virtual City@Chalmers: Creating a prototype for a collaborative early stage urban planning AR application
- 2019
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Ingår i: Proceedings of the 7th Regional International Symposium on Education and Research in Computer Aided Architectural Design in Europe. - 9788772100296 ; , s. 15-24
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Konferensbidrag (refereegranskat)abstract
- Contemporary urban planning require multi-stakeholder collaboration to create liveable, accessible and resilient cities. Information and communications technologies can play an important role. This paper presents and discusses the development of a prototype for an indoor multi-stakeholder augmented reality (AR) application to support collaborative design in early stage urban planning. The prototype is integrated into VirtualCity@Chalmers, a platform for modeling, simulation, and visualization of urban environments. Based on a user-centered approach, four main steps were carried out: literature study, interview study, development of guidelines, and development of the first version of a collaborative AR prototype. The guidelines for the prototype development address design and layout, collaboration, analysis, and object creation and manipulation. At the current state of development, the AR application allows users to visualize a projection of three-dimensional assets over a flat surface. Further research will focus on user testing and integration of simple Computational Fluid Dynamics simulations.
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| 3. |
- Thuvander, Liane, 1970, et al.
(författare)
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Towards spatial integration of qualitative data for urban transformation – challenges with automated geovisualization of perception of urban places
- 2020
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Ingår i: IOP Conference Series: Earth and Environmental Science. - : IOP Publishing. - 1755-1307 .- 1755-1315. ; 588:5
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Konferensbidrag (refereegranskat)abstract
- Urban planning needs to face and integrate ecological, social, and economic aspects of city living. So far, attempts to integrate different urban simulation models into one technical platform have focused on quantitative data. The aim of this paper is to present the preparation for an automated method to spatially integrate and visualize interview-based qualitative data on the perception of urban places into a virtual platform. The Gothenburg suburb of Hammarkullen is used as a case study. Two CAQDAS software, NVivo and Atlas.ti, were tested. In both software, locations and urban qualities were coded and clustered. Visualization strategies such as information tree structures, geo-coded quotations, spatial word clouds, linked to 2D maps and 3D environments were developed. Results identify the challenges to overcome and show limitations of the software in terms of creating graphs and relationships as well as automated geocoding of data to maps. The project offers a step towards the integration of qualitative (social) data into digital environments that can be scaled up. By that, it contributes with a new dimension of analysis of urban environments which is necessary for sustainable transformation of cities.
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