NMBS/SNCB 1501 with R 287 Paris-Nord - Amsterdam CS is passing the Viaduc de Comelles near Chantilly.
SNCF BB 16011 passes with R 241 from Paris-Nord to Brest Central the Viaduc de Comelles. In the train four SZD-carriages with destination Moscow. On the right the foundations of the old viaduct.
Built in 1956, these AC locomotives called "flat-iron" by railroaders, used 4 ignitrons in order to supply DC traction motors. Ballast train.