Towards Transportation Digital Twin Systems for Traffic Safety and Mobility Applications: A Review

• URL: http://arxiv.org/abs/2212.12242v2
• Date: Mon, 26 Dec 2022 04:21:44 GMT
• Title: Towards Transportation Digital Twin Systems for Traffic Safety and Mobility Applications: A Review
• Authors: Muhammad Sami Irfan, Sagar Dasgupta, Mizanur Rahman
• Abstract summary: Digital twin (DT) systems aim to create virtual replicas of physical objects that are updated in real time with their physical counterparts. This paper proposes a hierarchical concept for a Transportation DT (TDT) system starting from individual transportation assets and building up to the entire networkwide TDT.
• Score: 3.522062800701924
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Digital twin (DT) systems aim to create virtual replicas of physical objects that are updated in real time with their physical counterparts and evolve alongside the physical assets throughout its lifecycle. Transportation systems are poised to significantly benefit from this new paradigm. In particular, DT technology can augment the capabilities of intelligent transportation systems. However, the development and deployment of networkwide transportation DT systems need to take into consideration the scale and dynamic nature of future connected and automated transportation systems. Motivated by the need of understanding the requirements and challenges involved in developing and implementing such systems, this paper proposes a hierarchical concept for a Transportation DT (TDT) system starting from individual transportation assets and building up to the entire networkwide TDT. A reference architecture is proposed for TDT systems that could be used as a guide in developing TDT systems at any scale within the presented hierarchical concept. In addition, several use cases are presented based upon the reference architecture which illustrate the utility of a TDT system from transportation safety, mobility and environmental applications perspective. This is followed by a review of current studies in the domain of TDT systems. Finally, the critical challenges and promising future research directions in TDT are discussed to overcome existing barriers to realize a safe and operationally efficient connected and automated transportation systems.

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