TSI (Technical Specification for Interoperability)

The Technical Specification for Interoperability (TSI) is a set of detailed standards and rules designed to ensure different railway systems across Europe can work seamlessly together. It covers aspects like signals, trains, and infrastructure, enabling different countries' rail networks to operate smoothly as a unified system. TSI helps improve safety, efficiency, and cross-border travel by ensuring that all parts of the railway infrastructure and equipment meet common technical requirements, facilitating interoperability and reducing technical barriers between national rail systems.