서울 지하철은 이른 새벽부터 늦은 밤까지 운영하여 이용하기 편리하다. 현지인이 이용하는 주요 교통수단으로 출퇴근 시간에는 이용자가 매우 많아 지옥철이라고 불리기도 한다. 서울 시내를 이어주는 주요 노선은 숫자와 심볼 컬러로 안내되기 때문에 쉽게 찾을 수 있다.
Seoul's subway operates from early in the morning until late at night, making it convenient to use. As a major mode of transportation for locals, it is very crowded during rush hours and is sometimes referred to as 'hell-train.' The main lines that connect the city are marked with numbers and symbol colors, making them easy to find.
The Seoul subway operates from early morning until late at night, making it convenient to use. It is the main means of transportation used by locals and is often called the hell train due to the large number of users during rush hour. The main routes connecting downtown Seoul are indicated by numbers and colored symbols, making them easy to find.