The commuter train service between Brevik and Skien terminated in 1964, reducing most of the station's traffic.

At this time also the section west of the station was regarded as part of the Vestfold Line, which was built with narrow gauge 3 ft 6 in (1,067 mm).

[1] Plans for a branch from Eidanger to Brevik had been articulated during the construction of the Vestfold Line, but were not approved by Parliament until 4 July 1891.

[3] To secure compatibility with the Bratsberg Line, the section of track past Grenland to Eidanger and onwards to Brevik was converted to dual gauge from 4 December 1916.

Proposals have called for a bicycle path to be laid on the old section of track, which would see Eidanger as the point of origin.

[4] Eidanger is located 192.60 kilometers (119.68 mi) from Oslo West Station and at an elevation of 39.4 meters (129 ft) above mean sea level.

[6] The bulk of the services at Eidanger was originally a commuter train which ran to between Brevik and Skien.

Until the end of the 1940s the station had between ten and twelve daily round trips, but during the 1950s this increased to as high as nineteen, often running at a fixed hourly headway, following the introduction of electric trains.