Article 4 Development and improvement of railway safetyF1 United Kingdom Repealed Original text. Later amendments are not shown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Annotations Textual amendments F1 Repealed by Directive (EU) 2016/798 of the European Parliament and of the Council of 11 May 2016 on railway safety (Text with EEA relevance). ← Article 3 Article 4 Article 5 →