[1] From Ryongsŏng, this line also has a line connecting to the private railway station attached to Residence No.

55, the primary residence of Kim Jong-un.

The maintenance facilities for the North Korean leaders' trains are also located at Ryongsŏng Station.

The line was originally opened by the Chosen Government Railway on 1 November 1927 as part of the first section of the former P'yŏngwŏn Line from Sŏp'o to Sainjang (nowadays called P'yŏngsŏng Station).

A yellow background in the "Distance" box indicates that section of the line is not electrified.