SIGNAL+DRAHT | Issue 10/2012

Residual risk of overpassing danger points in ETCS level 1 for the conventional network

October 2012 | Abdelouahab Attou

A conventional network equipped with the interoperable ETCS level 1 system integrated into the existing lateral signalling (mixed level) is considered. This article presents an approach for the probabilistic and explicit evaluation of the residual risk of a train collision due to overpassing of the danger point. The model has identified a constraint between relevant ETCS system parameters such as Release Speed and the maximum speed in shunting and staff responsible modes for achieving a safety target. Consideration is given to mixed passenger and freight traffic running on the infrastructure.