Three trains of the Rigibahnen, following each other on sight distance, on the double track section between Rigi Kaltbad First and Romiti Felsentor. The trains are on the way from Rigi Kulm down to Vitznau on the 25.0 % grade. BDhe 4/4 # 22 with car car Bt # 32, railcar Bhe 2/4 # 4 and BDhe 4/4 # 21 with cab car Bt # 31.