since the failure of cisalpino, a joint venture between the italian trenitalia and the swiss federal railways (sbb), the pendolinos used for transalpine transport between switzerland and italy were split between trenitalia (5 etr 470 and 7 etr 610) and sbb (4 etr 470 and 7 etr 610). the low reliability of the timetable and of the etr 470 has led sbb and trenitalia to always have a reserve train ready at each terminus of the milan-zürich route.