New Audiovisual Alarm System for Level Crossing

In Agios Stefanos, one of the busiest suburbs of Athens, Sigma Signal carried out a significant upgrade to the level crossing safety infrastructure. The project involved the installation of a state-of-the-art SIL4-certified Level Crossing (LX) Control Unit, representing the highest standard in railway safety systems. In addition, Sigma Signal refurbished the existing trackside equipment owned by the Infrastructure Manager—equipment that, while still operational, required modernization to ensure long-term reliability and performance. The newly installed control unit and the upgraded components were seamlessly integrated and commissioned into service, resulting in a fully functional audio-visual warning system designed to enhance safety for road users in this high-traffic area.