Wireless Traffic Signal Controller with Distributed Control System Architecture


  • Tamás Tettamanti
    Budapest University of Technology and Economics


The paper presents a novel concept for traffic signal controller. Instead of the traditional central architecture, a wireless operation with distributed control architecture is proposed for traffic light control. The concept rests on local control units distributed in space as well, i.e. the signal heads also have own control logic. The basis of safe distributed operation is described in detail in the paper. Beside the presentation of the concept the required conformity with the specific standards are also investigated. Moreover, a formal method (Petri Nets modeling) is provided concerning a part of the proposed system, which confirms that the whole system goes to fail-safe state when critical problem occurs in any of the subsystems or communication.


traffic signal controller, traffic light, wireless, distributed control

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Published Online


How to Cite

Tettamanti, T. “Wireless Traffic Signal Controller with Distributed Control System Architecture”, Periodica Polytechnica Civil Engineering, 63(3), pp. 918–925, 2019. https://doi.org/10.3311/PPci.13974



Research Article