SIGNAL+DRAHT | Issue 05/2022

The safety requirements for on-board track vacancy detection

May 2022 | Eckehard Schnieder

A derivation of the Safety Integrity Level 4 (SIL4) requirement pertaining to the train head and train length and the basic integrity requirement for train separation detection has been outlined for the vehicle-side determination of track vacancy according to references and standard-compliant risk acceptance principles.