Abstract
Smart cities - being equipped with connected infrastructure - receive significant real-time traffic data. In this paper, a data-driven connected corridor traffic simulation model, i.e., a digital twin, is developed that leverages real-time data streams to model the current traffic state and provide dynamic feedback on traffic and environmental performance measures, e.g., travel time, speed, energy consumption, and vehicular emissions. The developed digital twin model architecture uses real-time 6-min volume aggregate data and 0.1 Hz to 10 Hz signal indication data as input to simulate the connected corridor using a traffic modeling software microscopic simulation. Dynamic data retrieval and transfer from the simulation model are enabled using the software's COM feature and a Flask web server. The robustness and feasibility of the digital twin architecture and the generated performance measure reasonableness are demonstrated on a smart corridor test bed. Such a model can be used to monitor and provide insights on the impacts of intelligent transportation system technologies on connected corridor traffic and environmental performance.
Original language | English |
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Article number | 04021096 |
Journal | Journal of Transportation Engineering Part A: Systems |
Volume | 147 |
Issue number | 12 |
DOIs | |
State | Published - Dec 1 2021 |
Externally published | Yes |
Funding
The information, data, or work presented herein was funded in part by the City of Atlanta (CoA) and in part by the National Center for Sustainable Transportation (NCST) Dissertation Grant. The authors thank CoA for support of this research under Research Project FC-9930 Smart Cities Traffic Congestion Mitigation Program. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the sponsors. This paper does not constitute a standard, specification, or regulation.
Funders | Funder number |
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City of Atlanta | |
National Center for Sustainable Transportation | FC-9930 |
Keywords
- Connected corridors
- Digital twin
- Intelligent transportation system (ITS)
- Real-time simulation
- Smart city
- Traffic simulation