I don't know why SRT was founded, when they build branching line from the conventional Korail lines.
Was it founded to treat SRT the paralleling competitive line?
Though it's true that the branching line is parallel with the conventional Korail line, it won't be competitive. That's because most passengers ride high speed trains from Suseo, SRT terminal, to Korail lines. And most of the distance they would cover is Korail lines.
Merger of Korail and SRT would be reasonable.