Wikipedia, handles about 120,000 passengers on an average weekday.
South Chicago shows another working-class neighborhood.
I took most of the photographs with a FujiFilm X-E1 digital camera with a Fuji 18-55mm zoom lens, opened the RAW files with Adobe Camera Raw, and processed the files with DxO Filmpack 3. For most, I used the Kodak Tri-X emulation, with slightly reduced grain and mild toning. Next time, I will use real Tri-X.