Devising Digital Twins DNA Paradigm for Modeling ISO-Based City Services

Abstract

Digital twins (DTs) technology has recently gained attention within the research community due to its potential to help build sustainable smart cities. However, there is a gap in the literature: currently no unified model for city services has been proposed that can guarantee interoperability across cities, capture each city’s unique characteristics, and act as a base for modeling digital twins. This research aims to fill that gap. In this work, we propose the DT-DNA model in which we design a city services digital twin, with the goal of reflecting the real state of development of a city’s services towards enhancing its citizens’ quality of life (QoL). As it was designed using ISO 37120, one of the leading international standards for city services, the model guarantees interoperability and allows for easy comparison of services within and across cities. In order to test our model, we built DT-DNA sequences of services in both Quebec City and Boston and then used a DNA alignment tool to determine the matching percentage between them. Results show that the DT-DNA sequences of services in both cities are 46.5% identical. Ground truth comparisons show a similar result, which provides a preliminary proof-of-concept for the applicability of the proposed model and framework. These results also imply that one city performs better than the other. Therefore, we propose an algorithm to compare cities based on the proposed DT-DNA and, using Boston and Quebec City as a case study, demonstrate that Boston has better services towards enhancing QoL for its citizens.

Digital twin enabled sustainable urban road planning

“…White, Zink et al (2021) presented a public and open digital twin of the Docklands area in Dublin, Ireland, which could assist in urban planning of skylines and green space and allow users to interact and report feedback on planned changes. Badawi, Laamarti et al (2021) designed a digital twin model of urban services to reflect the actual state of urban service development to improve citizens' quality of life. Marcucci, Gatta et al (2020) employed digital Twin to assist urban freight transport policy-making and planning.…”