The opening of the Ceneri Base Tunnel transformed regional services in Ticino. The RE80 began operation on 13 December 2020, running hourly from Locarno to Lugano with limited service beyond to Mendrisio or Chiasso. Its running mate was the RE10, running hourly between Castione-Arbedo, at the north end of the base tunnel, to Milano Centrale. This timetable was only temporary, and beginning on 5 April 2021 the RE80 began running half-hourly to Chiasso and hourly to Milano Centrale, replacing the RE10.[4]
References
^Eisenbahnatlas Schweiz. Cologne: Schweers + Wall. 2012. pp. 59–61. ISBN978-3-89494-130-7.