Busan Metro Line 4 () is a

rubber-tyred metro A rubber-tyred metro or rubber-tired metro is a form of rapid transit system that uses a mix of road transport, road and rail transport, rail technology. The vehicles have wheels with rubber tires that run on a roll way inside guide bars for tr ...

line of the

Busan Metro The Busan Metro () is the urban rail system operated by the Busan Transportation Corporation of Busan, South Korea. The metro network first opened in 1985 with seventeen stations, making Busan the second city in South Korea and third in the Kor ...

network that connects part of

Gijang-gun Gijang County is a ''gun'', or county, located between Haeundae-gu and Ulsan in northern Busan, South Korea. History Gijang first appears under its current name in the annals of the year 757, during the Unified Silla period. At that time it w ...

Busan Busan (), officially Busan Metropolitan City, is South Korea's second list of cities in South Korea by population, most populous city after Seoul, with a population of over 3.3 million as of 2024. Formerly romanized as Pusan, it is the economi ...

, and upper

Haeundae-gu Haeundae District () is a district ( ''gu'') of Busan, South Korea. Haeundae has a population of about 423,000, the most populous district of Busan with 11.6% of the city population, and covers an area of 51.44 km² (19.86 sq mi) in easter ...

, into

Dongnae-gu Dongnae District () is a '' gu'' (district) in central Busan, South Korea. Administrative divisions It has a population of about 300,000, and an area of 16.7 square kilometers. It was once a separate city, the principal port of southeastern Ko ...

Korea. It is operated by the

Busan Transportation Corporation The Busan Transportation Corporation () is a South Korean transport company based in Busan, that was established on January 1, 2006, following the abolition of the Busan Urban Transit Authority founded in 1987. The Busan Transportation Corporat ...

. Opened on 30 March 2011, the line is a rapid transit (metro) system consisting of 14 stations - 8 underground, 1 on-ground, and 5 above-ground. The line color is blue. A trip through the entire line takes about 24 minutes. Unlike lines 1 to 3 of Busan Metro, the trains are driverless and run with pneumatic tires on

concrete Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid over time. It is the second-most-used substance (after water), the most–widely used building material, and the most-manufactur ...

track (

Roll way __NOTOC__ A roll way or running pad is the pad placed on a concrete slab or on the ties on the outside of the conventional track along both running rails of a rubber-tyred metro or along the unconventional track of a tram. The rubber-tyred whe ...

) between two

guide bar Guide bars, or guiding bars are rubber-tyred metro systems that incorporate track. They have angle irons as outside of the two roll ways. The Busan Subway Line 4 lacks a rail track, and has I-beams installed as guide bars. The flanges ...

s. Line 4 was originally planned to be simply a branch of Line 3 (similar to

Seoul Subway The Seoul Metropolitan Subway () is a urban rail transit, metropolitan railway system consisting of 23 rapid transit, Medium-capacity rail transport system, light metro, commuter rail and people mover lines located in northwest South Korea. T ...

Line 2's Sinjeong and Seongsu branches), but was turned into its own line later. Line 4's station signs have blue frames, sharing their design with the station sign design used in some stations of Line 1, such as

Seomyeon Seo-myeon in South Korea may refers to *Seomyeon, Busan Seo-myeon () is a major commercial center and transportation hub in Bujeon-dong, Busanjin District, Busan, South Korea. The area grew from a small village in the Joseon period to a major in ...

and

Dongnae Dongnae District () is a '' gu'' (district) in central Busan, South Korea. Administrative divisions It has a population of about 300,000, and an area of 16.7 square kilometers. It was once a separate city, the principal port of southeastern Ko ...

. Their main body is white and circled by a blue frame and the station name is printed in big Hangul near the top with smaller English and Hanja names near the bottom, with the English name having the station number beside it. The arm that points to the next station has that station's name in it and a pointed end, while the arm that has the previous station's name printed on it and points to that station has a concave indent.

Lines 3 and 4

While

Busan Metro Line 3 Busan Metro Line 3 () is a line of the Busan Metro system. It was built from 1997 to 2005 and opened on November 28, 2005. The line is long, and has 17 stations, and its main colour is brown. Each train of the line has 4 cars. Line 3's trains ha ...

was being planned, the planners thought about making what is now Busan Metro Line 4 the 2nd phase of

. However, for several reasons, they have made this 2nd phase into a new line called Busan Subway Line 4.

Archaeology

Compared to Line 3, Line 4 took quite a long time for its construction. There are many reasons for this; however the most significant one is that there were many artifacts found in the construction site of the line, including those from the time of the

Three Kingdoms of Korea The Three Kingdoms of Korea or Samhan (Goguryeo, Baekje and Silla) competed for hegemony over the Korea, Korean Peninsula during the ancient period of History of Korea, Korean history. During the Three Kingdoms period (), many states and statele ...

and the

Joseon dynasty Joseon ( ; ; also romanized as ''Chosun''), officially Great Joseon (), was a dynastic kingdom of Korea that existed for 505 years. It was founded by Taejo of Joseon in July 1392 and replaced by the Korean Empire in October 1897. The kingdom w ...

. These artifacts had great historical value, so they caused the completion date of the line to be delayed from its original date of opening in 2008. Some of these artifacts are being displayed inside a historical museum dedicated to this in Suan Station (the museum opened on 28 January 2011).

Rolling stock

Woojin Industrial System Company Limited Woojin Industrial Systems () is a South Korean manufacturer of rolling stock including Rapid transit, metro, electric bus, people mover, peoplemover and monorail vehicles. Its main business is the development of Rolling stock, rolling stocks an ...

, supplied urban rubber tire trains for Line 4.

List of stations

All stations are in Busan.

References

External links