Model-based testing in safety-critical Scaled Agile

The new European Rail Traffic Management System (ERTMS) is Prorail’s big project for the coming years. With ERTMS, more trains can drive safely on the tracks in Europe. In the long run, this system may even enable self-driving trains. Whereas the current infrastructure conveys messages via signals next to the track, ERTMS allows direct machine communication with trains and engine drivers.

An important component in the machine communication to and from ERTMS trains is ETIS (ERTMS Train Information System). It communicates concurrently and continuously with three different systems: PRL, Astris and CSS. PRL (Procesleiding) is used by the train service controller to manage the trains. Astris enables communication to and from the rail infrastructure like switches and signals. CSS (Central Safety System) is a new system that communicates directly with the new ERTMS trains.