Expressways in South Korea (Korean: 대한민국의 고속도로; Hanja: 大韓民國의 高速道路; RR: Daehanmingukui gosokdoro), officially called as National expressways (Korean: 고속국도; Hanja: 高速國道; RR: Gosokgukdo), are owned by the govermment, and operated mostly by the Korea Expressway Corporation, and to a less extent by the private sector. They were originally numbered in order of construction. Since August 24, 2001, they have been numbered in a scheme somewhat similar to that of the Interstate Highway System in the United States; the icons of the South Korean Expressways are notably similar to those in the United States because they are shaped like U.S. Highway shields and colored like Interstate shields with red, white, and blue, the colors of the flag of South Korea.

• Arterial routes are designated by two-digit numbers, with north–south routes having odd numbers, and east–west routes having even numbers. Primary routes (i.e. major thoroughfares) have 5 or 0 as their last digit, while secondary routes end in other digits.
• Branch routes have three-digit route numbers, where the first two digits match the route number of an arterial route.
• Belt lines have three-digit route numbers where the first digit matches the respective city's postal code.
• Route numbers in the range 70–99 are not used in South Korea; they are reserved for designations in the event of Korean reunification.
• The Gyeongbu Expressway kept its Route 1 designation, as it is South Korea's first and most important expressway.

List of expressways

• red backgrounds are not opened to traffic

Route No.	Name	Origin	Terminus	Total Length(km)
	Gyeongbu Expressway	Geumjeong District, Busan (Guseo IC)	Seocho District, Seoul (Yangjae IC)	416,1 km
	Namhae Expressway	Yeongam County, S. Jeolla (W. Yeongam IC)	Suncheon, S. Jeolla (Haeryong IC)	106,8 km
		Suncheon, S. Jeolla (W. Suncheon IC)	Buk District, Busan (Deokcheon IC)	166,3 km
	Muan–Gwangju Expressway	Muan County, S. Jeolla (Muan Airport IC)	Gwangsan District, Gwangju (Unsu IC)	41,3 km
	Gwangju–Daegu Expressway	Buk District, Gwangju (Munheung JC)	Dalseong County, Daegu (Okpo JC)	176,0 km
	Hamyang–Ulsan Expressway	Hamyang, South Gyeongsang Province (North Hamyang JC)	Ulju county, Ulsan city (Ulju JC)	144,6 km
	Seohaean Expressway	Muan County, S. Jeolla (Jungnim JC)	Geumcheon District, Seoul (Geumcheon IC)	336,6 km
	Ulsan Expressway	Ulju County, Ulsan (Eonyang JC)	Nam District, Ulsan (Ulsan IC)	14,3 km
	Iksan–Pyeongtaek Expressway	Iksan, N. Jeolla	Pyeongtaek, Gyeonggi	132,0 km
	Pyeongtaek–Paju Expressway	Pyeongtaek, Gyeonggi (Oseong IC)	Paju, Gyeonggi	109,7 km
	Saemangeum–Pohang Expressway	Gimje, N. Jeolla	Wanju County, N. Jeolla	55,1 km
		Wanju County, N. Jeolla	Jangsu County, N. Jeolla (Jangsu JC)	36,5 km
		Dong District, Daegu (Palgongsan TG)	Buk-gu, Pohang, N. Gyeongsang (Pohang IC)	69,4 km
	Honam Expressway	Suncheon, S. Jeolla (W. Suncheon IC)	Nonsan, S. Chungcheong (Nonsan JC)	194,2 km
	Nonsan–Cheonan Expressway	Nonsan, S. Chungcheong (Nonsan JC)	Cheonan, S. Chungcheong (Cheonan JC)	82,0 km
	Suncheon–Wanju Expressway	Suncheon, S. Jeolla (E. Suncheon IC)	Wanju County, N. Jeolla (Wanju JC)	117,8 km
	Sejong–Pocheon Expressway	Habong-ri, Janggun-myeon, Sejong	Jangjuk-ri, Geumgwang-myeon, Anseong-si, Gyeonggi-do	55,86 km
		Jangjuk-ri, Geumgwang-myeon, Anseong-si, Gyeonggi-do	Topyeong-dong, Guri-si, Gyeonggi-do (S.Guri IC)	71,1 km
		Topyeong-dong, Guri-si, Gyeonggi-do (S.Guri IC)	Pocheon, Gyeonggi-do (Sinbuk IC)	50,6 km
	Seosan–Yeongdeok Expressway	Seosan, S. Chungcheong (Daesan JC)	Yeongdeok County, N. Gyeongsang (Yeongdeok IC)	330,8 km
	Dangjin–Cheongju Expressway	Dangjin, S. Chungcheong	Cheongwon-gu, Cheongju, N. Chungcheong (Ochang JC)	48,8 km
	Tongyeong–Daejeon Expressway	Tongyeong, S. Gyeongsang (Tongyeong IC)	Dong District, Daejeon (Biryong JC)	215,3 km
	Jungbu Expressway	Seowon-gu, Cheongju, N. Chungcheong (Nami JC)	Hanam, Gyeonggi (Hanam JC)	117,2 km
	Second Jungbu Expressway	Icheon, Gyeonggi (Majang JC)	Hanam, Gyeonggi (Sangok JC)	31,1 km
	Pyeongtaek–Jecheon Expressway	Pyeongtaek, Gyeonggi (W. Pyeongtaek JC)	Jecheon, N. Chungcheong (Jecheon JC)	127,4 km
	Jungbunaeryuk Expressway	Masanhoewon-gu, Changwon, S. Gyeongsang (Naeseo JC)	Yangpyeong County, Gyeonggi (Yangpyeong IC)	301,7 km
	Yeongdong Expressway	Namdong District, Incheon (Seochang JC)	Gangneung, Gangwon (Gangneung JC)	234,4 km
	Gwangju–Wonju Expressway	Gwangju, Gyeonggi (Gyeonggi-Gwangju JC)	Wonju, Gangwon (Wonju JC)	57,0 km
	Jungang Expressway	Sasang District, Busan (Samnak IC)	Chuncheon, Gangwon (Chuncheon IC)	388,1 km
	Seoul–Yangyang Expressway	Gangdong District, Seoul (Gangil IC)	Yangyang County, Gangwon (Yangyang JC)	150,2 km
	Donghae Expressway	Haeundae District, Busan	Yeongdeok County, N. Gyeongsang	131,8 km
		Samcheok, Gangwon (Geundeok IC)	Sokcho, Gangwon (Sokcho IC)	122,6 km
	Capital Region First Ring Expressway	Bundang-gu, Seongnam, Gyeonggi (Pangyo JC)	Bundang-gu, Seongnam, Gyeonggi (Pangyo JC)	128,0 km
	Namhae Expressway Branch 1	Haman County, S. Gyeongsang (Sanin JC)	Changwon, S. Gyeongsang (Changwon JC)	17,9 km
	Namhae Expressway Branch 2	Gimhae, S. Gyeongsang (Nangjeong JC)	Sasang District, Busan (Sasang IC)	20,6 km
	Namhae Expressway Branch 3	Jinhae-gu, Changwon, S. Gyeongsang	Gimhae, S. Gyeongsang (Jillye JC)	15,3 km
	Second Gyeongin Expressway	Jung District, Incheon (Airport New Town JC)	Jungwon-gu, Seongnam, Gyeonggi (Yeosudaero IC)	70,0 km
	Gyeongin Expressway	Nam District, Incheon (W. Incheon IC)	Yangcheon District, Seoul (Sinwol IC)	13,4 km
	Incheon International Airport Expressway	Jung District, Incheon	Deogyang-gu, Goyang, Gyeonggi (Bungno JC)	36,5 km
	Seocheon–Gongju Expressway	Seocheon County, S. Chungcheong (E. Seocheon IC)	Gongju, S. Chungcheong (W. Gongju JC)	61,4 km
	Pyeongtaek–Siheung Expressway	Pyeongtaek, Gyeonggi (W. Pyeongtaek JC)	Siheung, Gyeonggi (Gunja JC)	40,3 km
	Osan–Hwaseong Expressway	Osan, Gyeonggi (W. Osan JC)	Hwaseong, Gyeonggi (Annyeong IC)	2,5 km
	Yongin–Seoul Expressway	Giheung-gu, Yongin, Gyeonggi (Heungdeok IC)	Seocho District, Seoul (Heolleung IC)	22,9 km
173	Iksan–Pyeongtaek Expressway Branch	Pyeongtaek, Gyeonggi	Pyeongtaek, Gyeonggi	5,7 km
	Saemangeum–Pohang Expressway Branch (Pohang)	Buk-gu, Pohang, N. Gyeongsang	Buk-gu, Pohang, N. Gyeongsang	24,0 km
204	Saemangeum–Pohang Expressway Branch (Iksan-Wanju)	Iksan, N. Jeolla (Iksan JC)	Wanju County, N. Jeolla	24,5 km
	Honam Expressway Branch	Nonsan, S. Chungcheong (Nonsan JC)	Daedeok District, Daejeon (Hoedeok JC)	54,0 km
	Gochang–Damyang Expressway	Gochang County, N. Jeolla (Gochang JC)	Damyang County, S. Jeolla (Daedeok JC)	42,5 km
255	Gangjin–Gwangju Expressway	Gangjin, S. Jeolla	Seo District, Gwangju	51,1 km
292	Sejong–Pocheon Expressway Osong Branch	Sejong City	Cheongju, N. Chungcheong	6,2 km
	Daejeon Southern Ring Expressway	Yuseong District, Daejeon (W. Daejeon JC)	Dong District, Daejeon (Biryong JC)	20,9 km
	Sangju–Yeongcheon Expressway	Sangju, N. Gyeongsang (Nakdong JC)	Yeongcheon, N. Gyeongsang (Yeongcheon JC)	93,9 km
	Capital Region Second Ring Expressway	Ssangsong-ri, Mado-myeon, Hwaseong-si, Gyeonggi-do (Mado JC)	Yongdam-ri, Sanbuk-myeon, Yeoju-si, Gyeonggi-do	82,27 km
		Ssangsong-ri, Mado-myeon, Hwaseong-si, Gyeonggi-do (Mado JC)	Seonggok-dong, Danwon-gu, Ansan-si, Gyeonggi-do (South Ansan JC)	13,5 km
		Seonggok-dong, Danwon-gu, Ansan-si, Gyeonggi-do (South Ansan JC)	Jeongwang-dong, Siheung-si, Gyeonggi-do (Sihwa IC)	2,4 km
		Sinheung-dong 3-ga, Jung-gu, Incheon (Namhang IS)	Dosa-ri, Tongjin-eup, Gimpo-si, Gyeonggi-do (W.Gimpo-Tongjin IC)	28,5 km
		Heungsin-ri, Yangchon-eup, Gimpo-si, Gyeonggi-do (W.Gimpo-Tongjin IC)	Bugok-ri, Paju-eup, Paju-si, Gyeonggi-do	25,4 km
		Bugok-ri, Paju-eup, Paju-si, Gyeonggi-do	Hoeam-dong, Yangju-si, Gyeonggi-do (Yangju IC)	24,8 km
		Hoeam-dong, Yangju-si, Gyeonggi-do (Yangju IC)	Mubong-ri, Soheul-eup, Pocheon-si, Gyeonggi-do (Soheul JC)	6,0 km
		Mubong-ri, Soheul-eup, Pocheon-si, Gyeonggi-do (Soheul JC)	Asin-ri, Okcheon-myeon, Yangpyeong-gun, Gyeonggi-do (Yangpyeong IC)	46,5 km
	Jungbu Naeryuk Expressway Branch	Dalseong County, Daegu (Hyeonpung JC)	Buk District, Daegu (Geumho JC)	30,0 km
	Gwangju Ring Expressway	Gwangsan District, Gwangju	Jangseong County, S. Jeolla	10,3 km
	Jungang Expressway Branch	Gimhae, S. Gyeongsang (Gimhae JC)	Yangsan, S. Gyeongsang (Yangsan JC)	18,1 km
	Busan Ring Expressway	Gimhae, S. Gyeongsang (Jinyeong JC)	Gijang County, Busan (Gijang JC)	48,8 km
	Daegu Ring Expressway	Dalseo District, Daegu	Dong District, Daegu	32,91 km

Numbering scheme until 2001

A numbering scheme of expressways in South Korea changed in 2001. Before 2001, roads are numbered as order of its approval (although not exactly same). This list below is the lines by the old scheme. Note that name, origin and terminus of some lines are changed with numbering scheme.

Access restrictions

Motorcycling restrictions

Since June 1, 1972, all motorcycles except police motorcycles are prohibited from driving on expressways in South Korea, regardless of engine displacement. Before 1972, motorcycles with an engine displacement greater than 250 cc were permitted on expressways.^[2][3]

Since March 15, 1992, all motorcycles except police motorcycles have been banned from certain other roads designated for motor vehicles only.^[4][5][6][7] These roads are marked by a circular blue sign with a white silhouette of a car.