The Jungang Expressway is an expressway in South Korea. Its name literally means "Central Expressway," and for much of its length it runs through mountainous terrain near the country's east-west center line, including the national parks of Chiaksan and Sobaeksan. It shares the route number 55 with the Daegu-Busan Expressway. It covers a total distance of roughly 289 kilometers.The Jungang Expressway combines with the Daegu-Busan Expressway to form Expressway 55.