Special Metropolitan City roads of Seoul
The Seoul Metropolitan City roads, known as 서울특별시도 in Korean (Seoulteukbyeolsido), is a form network of highways that cover the metropolitan region of Seoul. These highways are maintained and designated by urban municipalities and are distinguished from other road systems by their official number and guide number. The official numbering system is specifically used in the legal context, while the guide numbering system is utilized for signage and is widely acknowledged by the public.
Classification
Seoul Metropolitan City roads consist of three categories: urban expressways (도시고속도로 in Korean), trunk routes (주간선도로 in Korean), and auxiliary routes (보조간선도로 in Korean).
Urban expressways
There are a total of 10 routes in the Seoul Metropolitan City road network, and some of these routes may overlap with each other.
| Official number | Guided number | Name | Korean name | Length (km) | Note |
|---|---|---|---|---|---|
| C3 | 30 |
Seoul Inner Loop Naebusunhwan-ro | 내부순환로 (내부순환도시고속도로) | 40.1 | overlap with National Route 46 and National Route 77 |
| 01 | 1 |
Seobu Ganseondoro Seobuganseon-doro | 서부간선도로 (서부간선) | 16.8 | overlap with National Route 1 and National Route 48 |
| 02 | 61 |
Dongbu Expressway Dongbuganseon-doro | 동부간선도로 (동부간선) | 32.5 | overlap with National Route 46 and ce 30 |
| 03 | - | Bukbu Expressway Bukbuganseon-doro | 북부간선도로 (북부간선) | 7.8 | |
| 04 | 70 |
Gangbyeon Northern Highway Gangbyeonbuk-ro | 강변북로 | 29.0 | overlap with National Route 46, National Route 77, ce 30 and ce 61 |
| 05 | 88 |
Olympic-daero Olympic-daero | 올림픽대로 | 42.5 | |
06 | 1 |
Gyeongbu Urban Expressway Gyeongbuganseon-doro | 경부간선도로 (경부간선) | 6.8 | Original routing of Gyeongbu Expressway into Seoul |
| 07 | 94 |
Gangnam Beltway Gangnamsunhwan-ro | 강남순환로 | 13.8 | |
| 08 | - | Shinwol-Yeoui Underpass Sinwolyeoui-jihadololeul | 신월여의지하도로를 | 7.7 | Underground bypass of Gukhoe-daero |
| 09 | - | Western Arterial Underpass Seobuganseon-jihadolo | 서부간선지하도로 | 9.0 | Underground bypass of Seobu Ganseondoro |
Other guided routes
| Number | Link | Length (km) | Note |
|---|---|---|---|
20 | Seoul City Route 20 | 21.3 | |
21 | Seoul City Route 21 | 24.2 | |
31 | Seoul City Route 31 | 17 | |
41 | Seoul City Route 41 | 27.5 | |
51 | Seoul City Route 51 | 31 | |
60 | Seoul City Route 60 | 33.6 | |
71 | Seoul City Route 71 | 18.7 | |
90 | Seoul City Route 90 | 28.3 | |
92 | Seoul City Route 92 | 44.6 |
Trunk routes
| Number | Name | Korean name | Length (km) | Note |
|---|---|---|---|---|
C1 | Downtown Ring Road | 도심순환도로 | 11.44 | Part of National Route 48 |
21 | Siheung-Jungnim Line | 시흥 ~ 중림선 | 17.69 | Part of National Route 1 |
22 | Sillim-Jingwan Inner Line | 신림 ~ 진관내선 | 22.6 | Part of National Route 1, overlaps Route C1 |
23 | Galhyeon-Jeokseon Line | 9.7 | ||
24 | Bongrae-Sejongro Line | 2.24 | ||
25 | Sadang-Seobinggo Line | 8.25 | ||
26 | Umyeon-Junghag Line | 14.34 | ||
27 | Jangji-Gahoe Line | 21.22 | ||
28 | Pildong-Dobong Line | 16.48 | ||
29 | Yangjae-Hyehwa Line | 12.94 | ||
30 | Naegok-Wolgok Line | 19.56 | ||
31 | Jangji-Seongsu Line | 11.73 | ||
32 | Segok-Sanggye Line | 29.08 | ||
41 | Umyeon-Suseo Line | 9.18 | ||
42 | Banghwa-Sagajeong Line | 51.76 | ||
43 | Sinjeong-Bongcheon Line | 9.8 | ||
44 | Sadang-Amsa Line | 17.07 | ||
45 | Gwahae-Samsung Line | 26.84 | ||
46 | Yangpyeong-Nogosan Line | 5.64 | ||
47 | Gongdeok-Penglai Line | 2.56 | ||
48 | Eulji-Dunchon Line | 16.24 | ||
49 | Sinwol-Sindang Line | 17.05 | ||
50 | Seorin-Sangil Line | 19.85 | ||
51 | Onsu-Mangu Line | 30.27 | ||
52 | Sinseol-Gongneung Line | 11.03 | ||
53 | Gayang-Hyeonjeo Line | 12.24 |
Three-digit routes
| Number | Name | Korean name | Via road | Length (km) | Note |
|---|---|---|---|---|---|
101 | Gwangmyeong-Siheung Line | 광명 - 시흥선 | Kia-ro | 0.35 | |
103 | Siheung-Sillim Line | 시흥 - 신림선 | Geumha-ro, Hoam-ro | 6.29 | |
105 | Siheung Line | 시흥선 | Hoam-ro | 1.28 | |
107 | Garibong-Doksan Line | 가리봉 - 독산선 | Beoman-ro | 1.72 | |
111 | Seongsan-Jingwan Line | Nongsusansijang-ro, World Cup-ro, Jeungsan-ro, Yeonseo-ro | 12.56 | Part of National Route 1 | |
112 | Sangam Line | World Cup Bridge, Jeungsan-ro | 3.29 | ||
113 | Seongsan-Hongje Line | Nongsusansijang-ro, World Cup-ro, Sandnae-ro | 5.69 | ||
115 | Sangam-Daeheung Line | World Cup-ro, Dokmak-ro, Daeheung-ro | 8.73 | ||
117 | Sangam-Seogyo Line | Worldcupbuk-ro, Hongik-ro | 5.53 | ||
119 | Sangam-Seongsan Line | Sungam-ro | 3.65 | ||
121 | Jeungsan-Yeonhui Line | Jeungga-ro | 2.70 | ||
123 | Sinsa-Hongeun Line | Gajwa-ro | 4.21 | ||
125 | Seooleung-Jingwanoe Line | Jingwan 1-ro | 1.04 | ||
127 | Jingwannae-Jingwanoe Line | Bukhansan-ro | 2.19 | ||
301 | Wolgog Line | Opaesan-ro | 0.90 | ||
401 | Cheong-Wonhyo Line | Wonhyo-ro | 0.70 | ||
403 | Seongsu Line | Wangsimni-ro | 0.41 | ||
405 | Noyu-Junggog Line | Neungdong-ro | 4.51 | ||
407 | Jamsil Railway Bridge | Jamsil Railway Bridge, Gangbyeon Station Road | 2.04 | ||
501 | Jamsil-Bangi Line | Baekje Gobun-ro | 5.15 |
2000-3000 series
| Number | Name | Korean name | Via road | Length (km) | Note |
|---|---|---|---|---|---|
2101 | Siheung-Doksan Main Line | Doksan-ro | 3.70 | ||
2103 | Doksan-Deungchon Main Line | Gasan-ro, Nambusunhwan-ro, Gurodong-ro, Gurojungang-ro, Mokdong-ro, Deungchon-ro | 10.06 | Duplicates City Route 42 | |
2105 | Doksan-Bongcheon Line | Munseong-ro, Sillim-ro, Ssukgogae-ro | 4.38 | Overlaps City Route 4223 | |
2107 | Garibong-Singil Line | Gamasan-ro | 5.38 | ||
2109 | Daelim-Yeongdeungpo Line | Singil-ro | 2.95 | ||
2111 | Yeouido Line | Yeouidong-ro, Yeouiseo-ro | 7.20 | ||
2112 | Yeouido Dunchi Line | Yeoui Interchange entrance and exit road | 3.85 | ||
2113 | Uisadang-daero | Uisadang-daero | 1.63 | ||
2115 | Bongrae-Gwanhun Line | Chilpae-ro, Sejong-daero, Namdaemun-ro, Ujeongguk-ro | 2.61 | Duplicates City Routes 24 and C1 | |
2201 | Sangdo-Sadang Line | Sadang-ro | 2.35 | ||
2203 | Yongsan-Seobingo Line | Seobinggo-ro | 2.68 | Duplicates City Route 25 | |
2205 | Galwol-Dongja Line | Duteopbawi-ro, Hoam-ro | 1.78 | ||
2207 | Hannam-Taepyeong Line | Sowol-ro | 3.78 | ||
2209 | Namchang-Namsan Line | Sopa-ro | 1.41 | ||
2301 | Yeokchon-Nokbeon Line | Seooreung-ro, Eunpyeong-ro | 1.32 | ||
2303 | Palpan-Hyoja Line | Cheongwa-daero, Hyoja-ro | 1.00 | ||
2305 | Yeokchon-Daejo Line | Jinheung-ro | 1.90 | Duplicates City Route 23 | |
2501 | Yongsan-Seongsu Line | Seobinggo-ro, Ttukseom-ro | 1.00 | Former portion of Gangbyeon North Road | |
2503 | Kumho-Cheong Line | Kumho-ro, Cheonggu-ro | 2.27 | ||
2601 | Seocho-Cheongdam Line | Saimdang-ro, Yeoksam-ro | 6.29 | ||
2603 | Namsan Tunnel 2 Line | Noksapyeong-daero 58-gil | 1.93 | ||
2701 | Sinsa-Cheongdam Line | Dosan-daero | 3.00 | ||
2702 | Wirye Tunnel Line | Wirye Tunnel | 2.27 | ||
2703 | Hannam-Eungbong Line | Dogseodang-ro | 4.95 | ||
2705 | Chungmu-Nakwon Line | Supyo-ro | 1.23 | ||
2707 | Pildong-Waryong Line | Chungmu-ro, Donhwamun-ro | 1.87 | ||
2709 | Jeodong-Eulji Line | Mareunnae-ro | 1.73 | ||
2801 | Dongseon-Jeongleung Line | Alilang-ro | 1.51 | ||
2803 | Donam-Changdong Line | Samyang-ro, Haedeung-ro | 9.83 | ||
2805 | Mia-Sanggye Line | Wolgye-ro, Hangeulbiseok-ro | 9.79 | ||
2807 | Jeongneung-Beondong Line | Bogukmun-ro, Solsaem-ro, Ohyeon-ro | 6.51 | ||
2809 | Mia-Suyu Line | Insubong-ro | 3.15 | ||
2811 | Suyu-Sanggye Line | Deokneung-ro | 9.82 | ||
2813 | Suyu-Sanggye 7 Line | Nohae-ro | 5.19 | ||
2815 | Ssangmun-Dobong Line | Sirubong-ro | 3.10 | ||
2817 | Gongneung-Uiseon Line | Nowon-ro, Banghak-ro | 10.87 | ||
2819 | Dobong Station Line | Dobong-ro 170-gil, Dongil-ro 243-gil | 0.99 | Overlaps National Route 3 | |
2821 | Dobongsan Entrance Line | Dobongsan Trail | 0.53 | ||
2901 | Hannam-Gwanghui Line | Jangchungdan-ro | 2.15 |
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