The extension of this line from Virpazar to Cetinje was planned, but never came through, due to lack of funding, and the beginning of the First World War.

Despite the steep gradient, the railway was not using rack technology, due to the innovative route design by Italian engineers.

This locomotive, which operated on the line, should become a part of a Montenegrin railway museum in Virpazar, which, due to lack of funds, never came through.

At that time, the railway network of Montenegro measured 143 km in length, with 760 mm (2 ft 5+15⁄16 in) narrow gauge as a most common standard.

Thus, it is fair to say that railway network in Montenegro was underdeveloped and unorganized prior to World War II.

Following World War II, the railway line Podgorica - Nikšić was completed (1948), with 760 mm (2 ft 5+15⁄16 in) gauge.

At that time, the length of Montenegrin railway network was 225 km, with transition to standard gauge complete.

As of 2019, ZICG managed to modernise the northern part of the line the Belgrade-Bar railway between Bijelo Polje and Trebesice, and inside the Sozina tunnel.

The total network is 250 kilometres long and is 1,435 mm (4 ft 8+1⁄2 in) (standard gauge) for its entire length, with 225 of them electrified at 25 kV, 50 Hz AC.

Railway transport of Montenegro (Montenegrin: Жељезнички превоз Црне Горе / Željeznički prevoz Crne Gore (ŽPCG)) is a joint-stock company that handles passenger transport within Montenegro, as well as operation of the Montenegrin rolling stock.