Relay-based signaling systems have long been the backbone of railway operations. While experts predict these systems will remain in use far beyond 2030, a growing challenge is emerging: relay expertise and spare parts are rapidly disappearing. Many organizations face a critical knowledge gap, with limited documentation and resources. This is one of the main drivers for the need to start planning a migration project. Without action, the risk of losing essential know-how increases over time.<\/p>\n<\/div><\/div><\/div>