Must Article 7(1) of Directive 2003/88/EC of the European Parliament and of the Council of 4 November 2003 concerning certain aspects of the organisation of working time be interpreted as being directly applicable in relations between a private transport operator, with a single public service delegation, and its employees, in the light, in particular, of the liberalisation of the rail passenger transport sector?
What is a reasonable carry-over period in respect of the acquired entitlement to four weeks’ paid annual leave within the meaning of Article 7(1) of Directive 2003/88/EC of the European Parliament and of the Council of 4 November 2003, in so far as the time during which annual leave may be accrued is one year?
Is the application of an unlimited carry-over period in the absence of a provision of national law, a regulation or convention governing that period contrary to Article 7(1) of Directive 2003/88/EC of the European Parliament and of the Council of 4 November 2003?