For a second there I thought this was a shot of a model layout.

I can see why- it's not often you see trains from an angle like this.

The angle helps inforce the idea, but what got me was the lighting, and the way the paint on the motive power looks.

Is that southwest side the rail yard and intermodal that runs from S. Western all the way to Ashland? Cause that place is crazy busy.

No, that's Ashland Yard on the Norfolk Southern. This is even busier and like, 5 times as big, down south of Midway Airport.

Now, where were you standing when you took this?

On a bridge.

lovely shot. i love it. =)

I gathered that, silly wuff...although if you had managed to get up into the hump tower, that would've been pretty cool. Just wondering which bridge. Also, I'm reminded of a picture that I took in that area a few years back, maybe you might find it interesting: https://www.furaffinity.net/full/5536029/

Cicero Avenue. And neat photo.

Ah, there. Thank you kindly! I was working for a company and I delivered somethings in that area, so I brought my camera with me one day.

So, here I am again with my american train doubts...
What is actually a "slug" for? Does it has an engine with traction motors/bogies so it can help the [drivable/being driven] locomotive with more power and such?...

A slug is just the traction motors and associated electrical equipment of a locomotive, without the diesel engine. It helps generate more pulling power and tractive effort to pull a long, heavy, slow train (in this case, in a classification yard). Some American railroads have recently converted older locomotives into "road slugs", that is, a slug designed to run at higher speeds in a main line train. The idea is that they give more pulling power while using less fuel. This slug though, is designed to help push trains over the hump in the yard.

Ah, I see! Thanks for explaining!