The P'yŏngŭi Line is an electrified main trunk line of the Korean State Railway of North Korea, running from P'yŏngyang to Sinŭiju on the border with China. It is the main corridor for overland traffic between North Korea and China, and is one of the country's most important rail lines. A bridge over the Yalu River connects Sinŭiju to the Chinese city of Dandong and the Shendan Line of the China Railway to Shenyang and Chinese points beyond.
The Ch'ŏngnyŏn Ich'ŏn Line is an electrified standard-gauge secondary mainline of the Korean State Railway running from P'yŏngsan on the P'yŏngbu Line to Sep'o on the Kangwŏn Line. The 141.3 km (87.8 mi) line is the southernmost of the three east-west transversal mainlines in North Korea.
The P'yŏngnam Line is an electrified standard-gauge trunk line of the Korean State Railway in North Korea, linking P'yŏngyang with the port city of Namp'o and the hot springs at P'yŏngnam Onch'ŏn. The length of the line is 89.9 km (55.9 mi).
The Kaech'ŏn Line is an electrified standard-gauge secondary line of the Korean State Railway running from Sinanju on the P'yŏngŭi Line to Kaech'ŏn on the Manp'o Line.
The Ŭnnyul Line is a non-electrified standard-gauge secondary line of the Korean State Railway in the North and South Hwanghae provinces of North Korea, running from Ŭnp'a to Ch'ŏlgwang. It is an important line in economic terms, connecting the agricultural and ore-producing areas of Kwail and Ŭnnyul counties with the rest of the DPRK.
The Paech'ŏn Line is a partially electrified standard-gauge secondary railway line of the Korean State Railway in South Hwanghae Province, North Korea, running from Changbang on the Hwanghae Ch'ŏngnyŏn Line to Ŭnbit.
The P'yŏngdŏk Line is an electrified standard-gauge trunk line of the Korean State Railway in North Korea running from Taedonggang Station in P'yŏngyang, where it connects to the P'yŏngbu, P'yŏngnam, P'yŏngra and P'yŏngŭi Lines, to Kujang, where it connects to the Manp'o and Ch'ŏngnyŏn P'arwŏn Lines. The total length of the line is 192.3 km (119.5 mi).
The Hŏch'ŏn Line is a partially electrified standard-gauge secondary line of the Korean State Railway running from Tanch'ŏn on the P'yŏngra Line to Honggun.
The Manp'o Line is an electrified standard-gauge trunk line of the North Korean State Railway running from Sunch'ŏn on the P'yŏngra Line to Manp'o on the Pukpu Line. The line continues on from Manp'o to Ji'an, China.
The Ch'ŏngnyŏn P'arwŏn Line is a non-electrified standard-gauge secondary railway line of the Korean State Railway in North P'yŏngan Province, North Korea, running from Kujang on the Manp'o and P'yŏngdŏk Lines to Kusŏng on the P'yŏngbuk Line.
The Kangwŏn Line is a 145.8 km (90.6 mi) electrified standard-gauge trunk line of the Korean State Railway of North Korea, connecting Kowŏn on the P'yŏngra Line to P'yŏnggang, providing an east–west connection between the P'yŏngra and Ch'ŏngnyŏn Ich'ŏn lines.
The P'yŏngra Line is an electrified standard-gauge trunk line of the Korean State Railway in North Korea, running from P'yŏngyang to Rajin, where it connects with the Hambuk Line. It is North Korea's main northeast-southwest rail line.
Kaech'ŏn Station is a railway station in Kaech'ŏn municipal city, South P'yŏngan province, North Korea, on the Manp'o Line of the Korean State Railway; it is also the starting point of the Kaech'ŏn Line to Sinanju, of the Choyang Colliery Line to Choyang Colliery and the Chunhyŏk Line to Chunhyŏngri.
Puksinhyŏn Station is a railway station in Puksinhyŏl-li, Hyangsan county, North P'yŏngan province, North Korea on the Manp'o Line of the Korean State Railway; it was also the starting point of the narrow-gauge Unsan Line to Samsan.
The Ch'ŏlsan Line is a non-electrified standard-gauge freight-only secondary line of the Korean State Railway in North P'yŏngan Province, North Korea, running from Tongrim on the P'yŏngŭi Line to Tongch'angri, where it serves the Sŏhae Satellite Launching Station.
The Sŏch'ang Line is an electrified railway line of the Korean State Railway in Tŏkch'ŏn-si, South P'yŏngan Province, North Korea, running from Tŏkch'ŏn on the P'yŏngdŏk Line to Sŏch'ang. It connects to the Sinsŏng Line at West Tŏkch'ŏn, whilst the Hoedun Line and the Hyŏngbong Line connect at Ch'ŏlgisan.
The Hyŏngbong Line is an electrified railway line of the Korean State Railway in Tŏkch'ŏn-si, South P'yŏngan Province, North Korea, running from Ch'ŏlgisan on the Sŏch'ang Line to Hyŏngbong.
The Map'yŏng Line is a non-electrified railway line of the Korean State Railway in T'aech'ŏn County, North P'yŏngan Province, North Korea, running from P'arwŏn on the Ch'ŏngnyŏn P'arwŏn Line to Hwŏnhwa.
The Osich'ŏn Line was a non-electrified railway line of the Korean State Railway in Unhŭng County, Ryanggang Province, North Korea, running from Taeoch'ŏn on the Paektusan Ch'ŏngnyŏn Line to Osich'ŏn.
