Air brakes (modern EMU/DMU regional rolling stock); vacuum brakes retained on heritage carriages
Route Engineering Challenges
6,327m Bohinj Tunnel beneath the Julian Alps — the longest railway tunnel in Slovenia and the longest in the Austro-Hungarian Empire at its 1906 opening
Solkan Bridge — 220m total length, 65m arch height, world-record largest stone arch on any railway, built 1900–1904
28 mountain tunnels totalling approximately 12 km requiring alpine ventilation and drainage systems
Steep adhesion-only gradients on the approach to Bohinjska Bistrica from both directions
Multi-level rock-blast sections above the Soča River gorge near Most na Soči
Single-track heritage sections requiring careful scheduling between regional and museum services
Route
Jesenice – Nova Gorica, 89 km; double track on operational sections, single track on museum sections
Opened
1906 (Bohinj Tunnel completed 1906; full line operational 1906)
Historic name
Transalpina — built by the Austro-Hungarian Empire to give Trieste a second Alpine rail connection