Shinbundang Line

The Shinbundang Line (aka Sinbundang Line; Korean: 신분당선 (literally, New Bundang Line)) or DX Line is a 31 km long line of the Seoul Metropolitan Subway. It is the world's fifth^[1] subway to run completely driverless and the second completely driverless metro line to open in South Korea, after Busan Subway Line 4. It connects Gangnam Station and Gwanggyo Station in 37 minutes, a feat achieved by being the first line to operate South Korea's next-generation subway car travelling at over 90 km/h, with the fastest average speed of any subway in the country.^[2][3]

The initial route opened in October 2011 passed through 6 stations intersecting with three existing lines at Gangnam Station (Line 2), Yangjae Station (Line 3), and Jeongja Station (Bundang Line). Phase 2 opened on 30 January 2016 added 6 stations to the south, extending the line to serve Yongin's Suji-gu and Suwon's Gwanggyo New City. Construction for Phase 3's extension northwards to Sinsa Station is planned in 2016, with opening slated for 2022.^[4] Construction started in mid-2005, for revenue start in Sep 2011. However, because of the flooding of late July 2011, the opening was delayed and eventually opened on 28 October 2011.^[5][6]

There was a debate^[7][8] between Seongnam City and Suwon City regarding whether Migeum should be included in the Phase 2 extension of Shinbundang Line. Supporters argued that the distance between Jeongja Station and SB01, an originally planned station to follow Jeongja, would be unusually long at 3.76 km. They also argued that the inclusion of Migeum will alleviate traffic in the area. Meanwhile,the Suwon opposition claims that the inclusion would delay travel time to Gwanggyo, a planned area of Suwon in construction.

Gwanggyo Jungang (Ajou Univ.) Station has opened its underground bus transfer station on early March 2016, where screen doors are installed on bus platforms so bus riders from all over Suwon can transfer to the subway directly.^[9]

The price to ride the Shinbundang Line is higher than standard fare for the rest of the Seoul subway system. The minimum cost is currently 2,150 won to ride (base subway fare of 1250 won along with a 900 Won surcharge for using the line). If one crosses Jeongja Station, 300 won is charged on top of the 900 won extra charge, although a cashback is offered to frequent riders between Pangyo Station and Dongcheon/Suji-gu Office Station.^[10]

Phases

Transfer gate to Seoul Subway Line 2 at Gangnam Station.

Gangnam Station platform

The front of the subway car is open for viewing thanks to driverless operation.

The interior of the 2011 introduced subway car built by Hyundai Rotem.

Phase 1 alleviated some of the traffic from inner Seoul to Bundang which is mainly residential and within the Seoul Capital Area. Phase 1 was 17.3 km and intersects with several subway lines in south-eastern Seoul as well as with the Bundang Line. Travel from one end to the other was 16 minutes. Construction lasted for roughly six years starting in mid-2005 and ended at the end of October, 2011. Total cost between public and private sectors was estimated at 1.169 trillion won.^[11][12][13]

Platform of Gangnam Station.

Phase 2 was primarily designed to ease heavy traffic between Yongin's Suji-gu and Bundang/Seoul, as Suji-gu was not a planned city like Bundang but abruptly and organically developed with large apartment complexes. As a result, Suji-gu is even more residential than Bundang, resulting in heavy traffic in connecting roads. The other aim was to connect the newly planned city of Gwanggyo rapidly to Seoul. Because of the investors and owners of Phase 1 and 2 being different, a 300 won extra charge was added on top of the 900 won extra charge if riders crossed Jeongja Station. Residents of Suji and Gwanggyo criticized the fare discrimination, despite a cashback being offered to frequent riders between Pangyo Station and Dongcheon/Suji-gu Office Station (200 won for Dongcheon and 100 won for Suji-gu Office).^[10] The mayor of Yongin and Suwon, along with officials from Gyeonggi-do asked the Ministry of Land, Infrastructure and Transport to lower the fares, which announced that it is trying to cut the fare by using low interest rate loans but it would take at least a year for it to be finalized.^[14]

Phase 3's route is not yet confirmed but the northern extension will extend the line north-west of Gangnam where it will cross several additional lines before potentially ending at Yongsan Station. This additional stretch is estimated to cost at least 400 billion won.^[15] An additional consideration would be to push the line north beyond Yongsan Station and end around Gwanghwamun Station and Gyeongbokgung Station, making it easier for commuters to access Gangnam from the central business district of Seoul. It was unclear if this idea has been scrapped or pushed back for a later reevaluation^[16] but resurfaced as a March 2012 campaign promise by Hong Sa-duk to expand the line near Gyeongbokgung Station]^[17][18] Currently the plan for this phase is an extension from Sinsa to Yongsan, potentially sharing tracks with the GTX A line towards Ilsan. Construction will initially begin in 2016 between Sinsa and Gangnam only, slated for opening in 2022.^[4]

Phase 4 extension to Suwon's Homaesil and Hwaseo Station is currently undergoing economic viability assessments by the government, with Suwon City saying that results should be positive when it comes out.^[19]

Operation

From Gangnam Station, trains are available from 5:30am until 24:50 midnight on weekdays, cut to 11:48pm on weekends and public holidays. However, the last train to Gwanggyo departs at 24:26 on weekdays, cut to 23:48 on weekends, with the remainder going until Jeongja Station only.

The trains are automated and run every 2.5 minutes during peak times to 8 minutes during off-peak hours. The SBL Line signal system is based on state-of-the-art communications-based train control (CBTC) technology, utilizing two-way digital radio communications between intelligent trains, and wayside equipment, and a network of ATS/ATO computers designed for very high system reliability and availability. Platforms can accommodate 10-car trains at 200 meters but initially 6-car trains will be used.^[13][20][21]

Stations

Current line

Phase 1 was opened on October 28, 2011, and spans from Gangnam to Jeongja. Phase 2 was opened on January 30, 2016, extending the line by 6 stations from Jeongja to Gwanggyo. Migeum Station will open in October 2017, offering a transfer to the Bundang Line. Construction of Phase 3 will begin in August 2016 between Sinsa and Gangnam, slated for opening in 2022.^[22]

Station Number	Station Name English	Station Name Hangul	Station Name Hanja	Transfer	Distance in km	Total Distance	Location
D04	Sinsa (2022)	신사	新沙	(2022)			Seoul	Gangnam-gu
D05	Nonhyeon (2022)	논현	論峴	(2022)
D06	Sinnonhyeon (2022)	신논현	新論峴	(2022)
D07	Gangnam	강남	江南		-	0.0
D08	Yangjae (Seocho-gu Office)	양재 (서초구청)	良才 (瑞草區廳)		1.5	1.5		Seocho-gu
D09	Yangjae Citizen's Forest (Maeheon)	양재시민의숲 (매헌)	良才市民의숲 (梅軒)		1.6	3.1
D10	Cheonggyesan	청계산입구	淸溪山入口		2.9	6.0
D11	Pangyo (Pangyo Techno Valley)	판교 (판교테크노밸리)	板橋 (板橋테크노밸리)	Gyeonggang Line	8.2	14.2	Gyeonggi-do	Seongnam City
D12	Jeongja	정자	亭子	Bundang	3.1	17.3
D13	Migeum (2017) (Seoul National University Bundang Hospital)	미금 (분당서울대병원)	美金	Bundang  (2017)	1.9	19.2
D14	Dongcheon	동천	東川		1.6	20.8		Yongin City
D15	Suji-gu Office	수지구청	水枝區廳		2.1	22.9
D16	Seongbok	성복	星福		1.7	24.6
D17	Sanghyeon	상현	上峴		2.1	26.7
D18	Gwanggyo Jungang (Ajou Univ.)	광교중앙 (아주대)	光敎中央 (亞洲大)	Underground bus transfer station[23]	2.4	29.1		Suwon City
D19	Gwanggyo (Kyonggi Univ.)	광교 (경기대)	光敎 (京畿大)		1.9	31.0

Yongsan extension and Samsong extension proposal

Although initially planned to be opened simultaneously with the Sinsa-Gangnam extension, due to the extension from Sinsa to Yongsan potentially sharing tracks with the newly approved GTX A line towards Ilsan, construction will initially begin in 2016 between Sinsa and Gangnam only, slated for opening in 2022. The stations between Sinsa and Yongsan are to be determined when the Yongsan Garrison moves out in 2017 and becomes a public park, with plans to split it at Dongbinggo to Noksapyeong Station, Seoul Station, City Hall Station, Gwanghwamun Station, Gyeongbokgung Station, terminating at Samsong Station in Goyang. However, the Yongsan extension will begin construction earlier than the Samsong extension, as the latter has not been evaluated yet.^[24][25]

Station Number	Station Name English	Station Name Hangul	Station Name Hanja	Transfer	Distance in km	Total Distance	Location
D01	Yongsan	용산	龍山	Gyeongui–​Jungang  Honam Saemaul-ho Mugunghwa-ho	-	0.0	Seoul	Yongsan-gu
D02	Yongsan Park	용산공원
D03	Dongbinggo	동빙고	東氷庫

Homaesil extension and Bongdam extension proposal

The southwestern extension to Homaesil is currently undergoing economic feasibility research, with results expected to be positive. It is expected that construction will begin in 2017, with opening potentially in 2022, given that construction usually take 5 years to complete.^[26] A further extension to Hwaseong City's Bongdam has been proposed but not evaluated yet.^[27]

Station Number	Station Name English	Station Name Hangul	Station Name Hanja	Transfer	Distance in km	Total Distance	Location
D18	Gwanggyo Jungang (Ajou Univ.)	광교중앙 (아주대)	光敎中央 (亞洲大)				Gyeonggi-do	Suwon City
D20	Suwon World Cup Stadium	수원월드컵경기장	水原월드컵競技場
D21	Jangan	장안
D22	Hwaseo	화서	華西
D23	Homaesil	호매실	好梅實

See also

• Subways in South Korea
• Seoul Metropolitan Subway

References

External links

Wikimedia Commons has media related to Sinbundang Line.

• Shinbundang's Official Website
• UrbanRail.net's Seoul Subway page
• Future Rail Database (Korean)
• Phase 2 Construction Information Website (Korean)

Rapid transit in South Korea
Seoul Capital Area	Urban Seoul ● Line 1 ● Line 2 ● Line 3 ● Line 4 ● Line 5 ● Line 6 ● Line 7 ● Line 8 ● Line 9 Incheon ● Line 1 ● Line 2 ○ Line 3 (planned) Metropolitan ● Line 1 [Korail] ● Line 3 [Korail] ● Line 4 [Korail] ● Gyeongui–Jungang Line [K1/K3] ● Gyeongchun Line [P1] ● Suin Line [K2] ● Bundang Line [K2] ● Gyeonggang Line [K4] ● AREX ● Shinbundang Line [DX Line] ○ Sosa–Wonsi Line (u/c) Light Metro ● U Line ● Everline ○ Ui-Sinseol Line (u/c) ○ Gimpo Goldline (u/c) Maglev and Monorail ● Incheon Airport Maglev  ○ Wolmi Monorail (u/c)
Busan	Urban ● Line 1 ● Line 2 ● Line 3 ● Line 4 ● Line 5 (u/c) Metropolitan ● Donghae Nambu Line (u/c) Light Metro ● Busan–Gimhae LRT
Daegu	● Line 1 ● Line 2 ● Line 3
Daejeon	● Line 1 ● Line 2 (planned)
Gwangju	● Line 1