Starting 29 May 1995, ICE 1 trains were allowed to travel at their top speed of 280 km/h. This was used on ICE line 3 (Hamburg–Frankfurt–Basel) in conjunction with other measures to cut travel time by a total of 17 minutes. This significantly improved the trains' connections for Switzerland's synchronized timetable. In 1998, the top speed was again lowered to 250 km/h. Since mid-2006, single ICE 1 services on the Nuremberg–Munich high-speed railway travel at 280 km/h. In 2008, the ICE 1 service ICE 783 uses its top speed on the Hanover–Würzburg line.