Event-triggered control of freeway traffic flow with connected and automated vehicles Event-triggered control of freeway traffic flow with connected and automated vehicles Πλήρης Δημοσίευση σε Συνέδριο Conference Full Paper 2025-09-032025enWe propose an event-triggered control (ETC) strategy for the Aw-Rascle-Zhang (ARZ) traffic model under congested conditions. The considered ARZ-type model, governed by first-order hyperbolic partial differential equations (PDEs), captures traffic dynamics involving both Adaptive Cruise Control (ACC) and human-driven vehicles. Control actions adjust the time gap for ACC vehicles and are updated based on a suitable triggering rule. We conduct the stability analysis on a linearized and transformed system (a 2×2 linear hyperbolic system with in-domain control), and we asses input-to-state stability (ISS) with respect to actuation errors. A small-gain approach guides the design of appropriate triggering rule (small-gain event based triggering condition), ensuring exponential stability while preventing the Zeno phenomenon. Numerical simulations demonstrate the effectiveness of the proposed control strategy in stabilizing traffic flow.Co-funded by the European Union (ERC, C-NORA, 101088147). Views and opinions expressed are however those of the authors only and do not necessarily reflect those of the European Union or the European Research Council Executive Agency. Neither the European Union nor the granting authority can be held responsible for them.http://creativecommons.org/licenses/by-nc-nd/4.0/5th IFAC Workshop on Control of Systems Governed by Partial Differential Equations - CPDE 2025Wang_et_al_IFAC_CPDE 2025_preprint.pdfChania [Greece]Library of TUC2025-09-03application/pdf879.1 kB10.1016/j.ifacol.2025.08.062free Wang Xinyong Tang Ying Espitia Nicolas Bekiaris-Liberis Nikolaos Μπεκιαρης-Λυμπερης Νικολαος Event-triggered control in-domain control ARZ traffic model hyperbolic PDEs input-to-state stability small-gain condition