Highway systems of South Korea

South Korea has seven highway systems.

National Expressways (Hangul: 고속국도; Hanja: 高速道路; RR: Gosokgukdo) or Expressways (Hangul: 고속도로; Hanja: 高速道路; RR: Gosokdoro)

General National highways (Hangul: 일반국도; Hanja: 一般國道; RR: Ilbangukdo) or National highways (Hangul: 국도; Hanja: 國道; RR: gukdo)

Special Metropolitan City roads and Metropolitan City roads (Hangul: 특별시도·광역시도; Hanja: 特別市道·廣域市道; RR: Teukbyeolsido·Gwangyeoksido)

Special Metropolitan City roads (Hangul: 특별시도; Hanja: 特別市道; RR: Teukbyeolsido) are the highway in the special city (Seoul).