It seems that the train lines pass through the whole city, no? Too many of them. It's a fast mode of transportation, although I imagine it's not used much anymore.
It must be a very nice city, enjoy your visit.
Actually this train it is used a lot to move around the city, only this section that passes through the center and goes between the buildings seems not so much. Here the train makes a loop, it goes around and arrives at the same point. And the walking distances are close, so it may be more practical to walk from one side to the other in this section of the city. But it's nice to ride it at least once.
Happy Sunday and happy mothers day 🤗