A relief train for the Intercity Tilting Train ICN is running as train 1528 from Zürich to Biel-Lausanne, with leading cab car BDt, standard cars type I and Re 4/4 # 11140 (Re 420 140) pushing in the rear. The train just run over the overpass, changed from running leaving Zürich on the far right of the 4 tracks, now on the far left in direction of travel. This was the first of 4 trains, with circulated with up to 140 km/h on the same track in a time laps of 5 minutes and 40 seconds only. The shortest time laps between two trains was 1 minute and 39 seconds.