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 network that connects part of Gijang-gun,

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,

, into Dongnae-gu,

Korea. It is operated by the Busan Transportation Corporation. 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) between two guide bars. Line 4 was originally planned to be simply a branch of Line 3 (similar to Seoul Subway 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 and Dongnae. 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 was being planned, the planners thought about making what is now Busan Metro Line 4 the 2nd phase of Busan Metro Line 3. 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, supplied urban rubber tire trains for Line 4.

List of stations

All stations are in Busan.

References

External links