[1] Maintained by the Swedish Transport Administration, the Western Main Line is electrified and consists entirely of double track, except the four-track sections between Gothenburg Central Station and Olskroken (2 km or 1.2 mi), in Järna (5 km or 3.1 mi), and south of Stockholm, between Flemingsberg and Stockholm Södra station, about 14 km (8.7 mi).

Before the Stockholm City Line was opened in 2017, the bridge was a serious bottleneck, as all trains had to use the same tracks.

The current Swedish speed record of 303 km/h (188 mph) was achieved here by a X50 "Regina" EMU.

There are plans to build a high-speed line between Stockholm and Gothenburg, south of lake Vättern, Götalandsbanan.

However, this would only cut the travel time by about 40 minutes (the fastest connection today is a non-stop X 2000 service which covers the 455 km (283 mi) in 2 hours and 52 minutes, at an average speed of 159 km/h (99 mph)), but connect more large cities to the Stockholm–Gothenburg line (Borås, Jönköping, Linköping, Norrköping).