Internal boundary control in lane-free automated vehicle traffic: Comparison of approaches via microscopic simulationInternal boundary control in lane-free automated vehicle traffic: Comparison of approaches via microscopic simulation Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2024-06-282024enThe recently introduced TrafficFluid concept proposes that automated vehicles drive lane-free, thus enabling capacity sharing between the two opposite road directions via real-time Internal Boundary Control (IBC). This novel traffic control measure was demonstrated, using macroscopic traffic flow models, to deliver unprecedented improvements of traffic flow efficiency. The present study completes and validates the IBC concept in a much more realistic way via microscopic simulation and active internal boundary moving, using the SUMO-based TrafficFluid-Sim simulation tool. To effectuate IBC, a Linear Quadratic Regulator (LQR), which is a feedback control scheme, is employed. In addition, to enhance the performance of the LQR controller, a feedforward term, accounting for external disturbances, i.e. entering flow and on-ramp flows, is also designed, leading to an augmented LQR-FF control scheme. The LQR and LQR-FF controllers are tested and compared in the created realistic environment, demonstrating how IBC may operate in practice to combat traffic congestion on highways.The research leading to these results has received funding from the European Research Council under the European Union’s Horizon 2020 Research and Innovation programme/ ERC Grant Agreement n. [833915], project TrafficFluid.http://creativecommons.org/licenses/by-nc-nd/4.0/Transportation Research Part C: Emerging Technologies158Malekzadeh_et_al_Transp. Res. Part C Emerging Technol._2024_manuscript.pdfChania [Greece]Library of TUC2024-06-25application/pdf1.7 MBfree Malekzadehkebria Milad Malekzadehkebria Milad Troullinos Dimitrios Τρουλλινος Δημητριος Papamichail Ioannis Παπαμιχαηλ Ιωαννης Papageorgiou Markos Παπαγεωργιου Μαρκος Bogenberger Klaus Elsevier Internal boundary control LQR Feedforward TrafficFluid-Sim Microscopic simulation