Wrong side signalling failure
Wrong side signalling failure
Any technical failure of a signalling system (either to infrastructure or to rolling stock), resulting in signalling information less restrictive than that demanded.
Regulation (EU) 2020/1530 of the European Parliament and of the Council of 21 October 2020
Directive (EU) 2016/798 of the European Parliament and of the Council of 11 May 2016 on railway safety (recast)