Gyeongbu Expressway

The Gyeongbu Expressway (Gyeongbu Gosok Doro (경부 고속 도로; 京釜高速道路) or Gyeongbuseon (경부선; 京釜線; "Gyeongbu Line") for short in Korean) is the oldest and most heavily travelled freeway in South Korea, and connecting Seoul to Suweon, Daejeon, Gumi, Daegu, and Busan. The freeway was built in the 1970s and has the route number 1. Entire length of Seoul-Busan 428 km.