In 1989 , following the go-ahead for the project , the institutions to manage its preparation were established : the Gyeongbu High Speed Electric Railway & New International Airport Committee , and the High Speed Electric Railway Planning Department ( later renamed HSR Project Planning Board ) .
In 1989 , the institutions to manage its preparation were established : the Gyeongbu High Speed Electric Railway & New International Airport Committee , and the High Speed Electric Railway Planning Department .