도상(자갈)
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열차 하중을 분산시키고 배수를 제공하며 선로의 횡방향·종방향 이동을 방지하기 위해 침목 아래와 주변에 깔린 부순 돌 또는 자갈. 자갈 도상 궤도는 전 세계적으로 가장 일반적인 철도 노반 형태이며, 고속선에서는 슬래브 궤도가 점차 많이 사용된다.
자주 묻는 질문
Ballast is a term used in the railway industry. Understanding this concept helps travelers navigate train services, schedules, and ticketing more effectively. See the full definition above for details.
Knowing what Ballast means can help passengers plan their journeys, understand announcements, and make informed decisions about routes, fares, and service types when traveling by train.
Several railway terms are closely related to Ballast. You can explore related concepts in the sidebar or browse the full TrainFYI glossary to deepen your understanding of rail terminology.