Traffic & Signalling Management
Innovative algorithms and concepts for interlockings
Innovative safety logic as core of the digital safety architecture on the infrastructure side
With the new "digital" interlocking generation, like in "Annaberg-Buchholz Süd", infrastructure elements such as points and train detection components are no longer directly connected to the safety core with the safety logic. Instead, they are connected via data bus and act autonomously. However, the safety logic itself remains unchanged. The current safety logic in electronic interlockings is based on a limited set of available information. Therefore, it often prevents the optimal usage of infrastructure in terms of minimal occupancy times and highest safe speed profiles. Several functions of new technology like ETCS remain unused because the safety logic in the current interlockings cannot deal with it. In recent years, the availability of data is continuously increasing. For this reason, a new safety logic is a necessary part of a new digital rail safety infrastructure. Currently, there are several research projects focusing on this issue.
In the work-stream, we would like to discuss the potentials of a new safety logic at the interlocking core on the infrastructure side.