Line 4
Overview
Native name	4호선(4號線) Sa Hoseon
Status	Operational
Termini	Anpyeong Minam
Stations	14
Service
Type	Rapid transit
System	Busan Metro
Services	1
Operator(s)	Busan Transportation Corporation
Depot(s)	Anpyeong
Rolling stock	Woojin Industrial EMU Class 4000
History
Opened	30 March 2011
Technical
Line length	10.8 km (6.7 mi)
Number of tracks	2
Track gauge	1,700 mm (5 ft 6+15⁄16 in)
Electrification	750 V DC guide bars
Route map Legend km ←→ 0.0 401 Minam 1.0 402 Dongnae ←→ 1.7 403 Suan ← 2.4 404 Nangmin Dongnae 3.1 405 Chungnyeolsa Allak ← 3.8 406 Myeongjang district Dongnae Geumjeong 4.8 407 Seo-dong 5.6 408 Geumsa district Geumjeong Haeundae 6.4 409 Banyeo Agricultural Market 7.6 410 Seokdae 9.0 411 Youngsan Univ. 10.1 412 Witbansong district county Haeundae Gijang 10.9 413 Gochon 12.0 414 Anpyeong Anpyeong Vehicle Office

Busan Metro Line 4 (4호선) is a rubber-tyred metro line of the Busan Metro network that connects part of Gijang-gun, Busan, and upper Haeundae-gu, Busan, into Dongnae-gu, Busan Korea. It is operated by the Busan Transportation Corporation. Opened on 30 March 2011,^[1] the line is a rapid transit (metro) system consisting of 14 stations - 8 underground, 1 on-ground, and 5 above-ground.^[2] 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 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.

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.

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 and the Joseon Dynasty. These artifacts had great historical value,^[3] 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).

Woojin Industrial System Company Limited, supplied urban rubber tire trains for Line 4.^[4]

All stations are in Busan.

Station Number	Station name			Transfer	Distance in km	Total distance	Location
	English	Hangul	Hanja
401	Minam	미남	美南		---	0.0	Dongnae
402	Dongnae	동래	東萊		1.0	1.0
403	Suan	수안 (동래읍성임진왜란역사관)	壽安 (東來邑城壬辰倭亂歷史館)		0.7	1.7
404	Nangmin	낙민	樂民		0.6	2.3
405	Chungnyeolsa	충렬사 (안락)	忠烈祠 (安樂)		0.6	2.9
406	Myeongjang	명장	鳴藏		0.6	3.5
407	Seo-dong	서동	書洞		0.9	4.4	Geumjeong
408	Geumsa	금사	錦絲		0.6	5.0
409	Banyeo Agricultural Market	반여농산물시장	盤如農産物市場		0.7	5.7	Haeundae
410	Seokdae	석대	石坮		1.1	6.8
411	Youngsan University	영산대 (아랫반송)	靈山大 (아랫盤松)		1.2	8.0
412	Witbansong	윗반송	윗盤松		1.3	9.3
413	Gochon	고촌	古村		0.6	9.9	Gijang
414	Anpyeong	안평 (고촌주택단지)	安平 (古村住宅團地)		0.9	10.8

• Busan Metro
• Transportation in South Korea

• Introduction of Busan Metro Line 4 (Korean text)