From what I can see, they're not actually duplicated, I would suggest taking a closer look at the windows. But I do agree that it's quite hard to see the difference.
The trains look very clean from the outside. I do wonder how loud is it, to live so near the tracks.
I also live right next to a train line in CH (that has exactly the same kind of rolling stock passing by as the ones captured by jo-m). These are modern commuter trains (no cargo and long distance trains), and are a lot less loud than you'd expect. A somewhat busy street nearby would be an order of magnitude more annoying.
The trains look very clean from the outside. I do wonder how loud is it, to live so near the tracks.