In addition, the connection is part of the shortest railway line between Bern and Paris.

In Neuchâtel, the route meets the existing Biel–Neuchâtel railway, which runs along the foot of the southern Jura.

The Bern (Holligen)–Bern Bümpliz Nord section had been electrified at 15 kV 16.7 Hz on 13 September 1923.

Double track was put into operations on the Ins–Fanelwald section on 24 June 2007 and it was extended to Zihlbrücke on 16 September 2012.

Because of their high axle weights, no suitable alternative use could be found after the electrification of their home line, so they were scrapped early.