No, there are two tracks, and 60 km/h is too fast to trust operation by sight. I had a hunch that they use ETCS because the existing signalling system has aged, but after checking, I see there could be an additional reason. The existing system only allows three-minute headways, with most blocks (signal intervals) being the section from one station to the next. So a new system with shorter blocks (scaled to the braking distances of the new trains) and the two-minute headways mentioned in the Wiki article could allow for a higher train frequency.

_{*Lunatic*, n.
One whose delusions are out of fashion.}