In the future, mobility will be strongly shaped by the increasing use of digitalization. Not only will individual road users be highly interconnected, but also the road and associated infrastructure. At that point, a Digital Twin becomes particularly appealing because, unlike a basic simulation, it offers a continuous, bilateral connection linking the real and virtual environments. This paper describes the digital reconstruction used to develop the Digital Twin of the Test Area Autonomous Driving-Baden-Württemberg (TAF-BW), Germany. The TAF-BW offers a variety of different road sections, from high-traffic urban intersections and tunnels to multilane motorways. The test area is equipped with a comprehensive Vehicle-to-Everything (V2X) communication infrastructure and multiple intelligent intersections equipped with camera sensors to facilitate real-time traffic flow monitoring. The generation of authentic data as input for the Digital Twin was achieved by extracting object lists at the intersections. This process was facilitated by the combined utilization of camera images from the intelligent infrastructure and LiDAR sensors mounted on a test vehicle. Using a unified interface, recordings from real-world detections of traffic participants can be resimulated. Additionally, the simulation framework's design and the reconstruction process is discussed. The resulting framework is made publicly available for download and utilization at:this https URLThe demonstration uses two case studies to illustrate the application of the digital twin and its interfaces: the analysis of traffic signal systems to optimize traffic flow and the simulation of security-related scenarios in the communications sector.
View on arXiv@article{zipfl2025_2507.02400,
title={ DigiT4TAF -- Bridging Physical and Digital Worlds for Future Transportation Systems },
author={ Maximilian Zipfl and Pascal Zwick and Patrick Schulz and Marc Rene Zofka and Albert Schotschneider and Helen Gremmelmaier and Nikolai Polley and Ferdinand Mütsch and Kevin Simon and Fabian Gottselig and Michael Frey and Sergio Marschall and Akim Stark and Maximilian Müller and Marek Wehmer and Mihai Kocsis and Dominic Waldenmayer and Florian Schnepf and Erik Heinrich and Sabrina Pletz and Matthias Kölle and Karin Langbein-Euchner and Alexander Viehl and Raoul Zöllner and J. Marius Zöllner },
journal={arXiv preprint arXiv:2507.02400},
year={ 2025 }
}