Technical Specifications for Interoperability (TSIs)

Technical Specifications for Interoperability (TSIs) are detailed technical standards designed to ensure different railway systems and components work seamlessly together across regions. They set common rules for infrastructure, rolling stock, signaling, and communication, enabling trains from various operators and countries to operate safely, efficiently, and reliably on shared networks. TSIs help reduce delays, improve safety, and facilitate cross-border travel by providing a unified framework that standardizes technical requirements across the European railway system.