A working timetable (WTT) - (Fr. horaire de service (HDS) or service annuel (SA); N. America Employee timetable) - The data defining all planned train and rolling-stock movements which will take place on the relevant infrastructure during the period for which it is in force; within the EU, it is established once per calendar year.[1] The trains included may be passenger trains, freight trains, empty stock movements, or even bus and/or ship connections or replacements.
- ^ "Article 43, Annex VII of Directive 2012/34/EU of the European Parliament and of the Council of 21 November 2012 establishing a single European railway area". 21 November 2012. Retrieved 19 November 2018.