Railways: total: 5,000 km standard gauge: 4,095 km 1.435-m gauge (3,500 km electrified; 159 km double-tracked) narrow gauge: 665 km 0.762-m gauge dual gauge: 240 km 1.435-m and 1.600-m gauges (three rails provide two gauges) (1996)
Highways: total: 31,200 km paved: 1,997 km unpaved: 29,203 km (1996)
Waterways: 2,253 km note: mostly navigable by small craft only
Pipelines: crude oil 37 km; petroleum product 180 km
Ports and harbors: Ch'ongjin, Haeju, Hungnam (Hamhung), Kimch'aek,
Kosong, Najin, Namp'o, Sinuiju, Songnim, Sonbong (formerly Unggi),
Ungsang, Wonsan
Merchant marine: total: 122 ships (1,000 GRT or over) totaling 738,886 GRT/1,037,506 DWT note: includes some foreign-owned ships registered here as a flag of convenience: Denmark 1, Greece 2, Pakistan 1, Singapore 1 (2002 est.) ships by type: bulk 4, cargo 102, combination bulk 1, multi-functional large-load carrier 1, passenger 2, passenger/cargo 1, petroleum tanker 6, refrigerated cargo 3, short-sea passenger 2
Airports: 87 (2001)
Airports - with paved runways: total: 39 over 3,047 m: 3 2,438 to 3,047 m: 26 1,524 to 2,437 m: 8 914 to 1,523 m: 1 under 914 m: 1 (2001)
Airports - with unpaved runways: 24 914 to 1,523 m: Military Korea,
North
Military branches: Korean People's Army (includes Army, Navy, Air Force),
Civil Security Forces