CN yards in East Hazel Crest, Illinois has a training facility. Today (5/2/16)is a beautiful day for taking photos of rolling stock. Heavyweight car may have been a dining car. Center car has an observation platform. The steps obviously are easier to climb than the stairs of the cars. I did not take a photograph of the blue flag on the tracks about 25' north of the heavyweight car.
This car was part of the IC's Training Department, photo taken about 2007. Please feel free to post pictures or comments about instruction cars, private cars, etc. John