Gyeongbu high-speed railway

Gyeongbu HSR
Overview
Native name경부고속선
StatusIn operation:
  • Seoul–Daejeon
  • Daejeon–Daegu
  • Daegu–Busan

Planned:

  • downtown Seoul
OwnerKorea Rail Network Authority
Termini
Stations6
Service
TypeHigh-speed rail
Operator(s)Korea Train Express
Depot(s)Osong
Gwangmyeong (night)
Yeongdong (maintenance)
Rolling stockKTX-I, KTX-Sancheon, SRT
History
Opened1 April 2004:
  • Seoul–Daejeon
  • Daejeon–Daegu

1 November 2010:

  • Daegu–Busan

1 August 2015:

  • downtown Daejeon
  • downtown Daegu
Technical
Line length346.4 km (215.2 mi)
(without interconnectors)
387.3 km (240.7 mi)
(from 2014)
Number of tracks2
Track gauge1,435 mm (4 ft 8+12 in)
Minimum radius7,000 m (23,000 ft)
Electrification25 kV/60 Hz catenary
Operating speed305 km/h (190 mph)
350 km/h (217 mph)
design
Route map

-15.4
Goyang Depot
(14.9)
Haengsin
(0.0)
Seoul
(3.2)
Yongsan
(5.8)
Noryangjin
Yeongdeungpo
Geumcheon-gu Office
(0.0│17.7)
Siheung interconnection
(1.5)│13.2
Gwangmyeong Night Depot
15.6
Gwangmyeong
Iljik Tunnel
10,290 m
89.6
Cheonan–Asan
Pungse Viaduct
6,844 m
Osong Depot
118.2
Osong
145.5│5.8
end of high-speed section
148.7│2.6│(161.6)
Daejeonjochajang Junction
150.7│(0.6│163.6)
151.3│(0.0│164.2)
North Daejeon interconnection
153.4│(166.3)
Daejeon
158.0
start of high-speed section
(0.0│182.9)
174.8│(4.2)
South Daejeon interconnection
Hwashin 5 Tunnel
6,247 m
208.8
218.8
Hwanghak Tunnel
9,970.5 m
233.1
Gimcheon (Gumi)
(3.5)│265.7
(308.2│0.0)
North Daegu interconnection
end of high-speed section
286.8│(326.3)
Dongdaegu
289.4│(328.9)
293.4
start of high-speed section
335.8
Gyeongju
365.8
Ulsan
Wonhyo Tunnel
13,270 m
Geumjeong Tunnel
20,323 m
416.2
end of high-speed section
(441.7)│417.5│(0.0)
Busan
Gyeongbu high-speed railway
Hangul
Hanja
Revised RomanizationGyeongbu Gosokseon
McCune–ReischauerKyŏngbu Kosoksŏn

The Gyeongbu high-speed railway, also known as Gyeongbu HSR, is South Korea's first high-speed rail line from Seoul to Busan. KTX high-speed trains operate three sections of the line: on 1 April 2004, the first between a junction near Geumcheon-gu Office station, Seoul and a junction at Daejeonjochajang station north of Daejeon, and a second between a junction at Okcheon station, southeast of Daejeon, and a junction near Jicheon station, north of Daegu entered service; then on 1 November 2010, the third section, between a junction west of Daegu and Busan became operational. The missing gaps across the urban areas of Daejeon and Daegu were in construction for an expected opening in 2014, separate tracks into Seoul Station were also planned. The temporary ends of the three sections were connected to the parallel conventional Gyeongbu Line by tracks that will serve as interconnector branches upon the completion of the entire line. On 1 August 2015, construction on urban areas of Daejeon and Daegu were completed; all the sections of HSR line were connected.

As of November 2010, two train services use the line: the Gyeongbu KTX Line, with trains running along the Gyeongbu HSR or the parallel Gyeongbu Line only; and the Honam KTX Line, with trains leaving the Gyeongbu HSR at Daejeon and continuing on the conventional Honam Line. A number of other high-speed lines branching from the Gyeongbu HSR are in construction or planned, and several more KTX services using connecting conventional rail lines are also planned. After 2016, the privately owned SRT service started operations on the railway from Suseo station in Seoul.