Transkeo, a subsidiary of Keolis and operator of the tram-train between Évry-Courcouronnes and Massy, has set up new departures at Épinay-sur-Orge (Essonne) The petition brought by elected officials from Viry-Chatillon for a “punctual, reliable and sustainable’ T12 does not leave indifferent the users who flock to the station. Since December 10, the new line has suffered difficulties since its entry into service on December 10.