No tourist would be able to tour the city with those maps alone, since they do not represent the real configuration of metro lines in space.
Let's make a quick test: tell me, which line would you take if you want to head south-west, based on this map?
Red line, right?
Pity you would end up being in the north-west part of Milan, instead.
Here's a reconstructed configuration of lines in space, over a map. Take a look!
And that's not an exception: even on single lines representations they got it wrong!
In this one they put east what is west and viceversa..
|The sticker in the middle says: "ATTENTION: this map is upside down!"|
A shame, isn't it?