Art on Track took place aboard a eight car moving CTA train. The special train circled the loop of down town Chicago making stops to pick up new passengers along the way. Every time the train made a stop, large groups of people came pouring out of the cars and almost crashed into each other as they run in either direction to board a new car. Art on Track took place once a year and ran on the down town tracks for 5 hours. It was great fun. Our train car "Encroachment" explored modern ideas of how public and private behaviors differ and the ways they seem to merge together on public transportation. Our car was divided into vignettes, we had a bathroom with a guy shaving and doing other personal things, a kitchen with a mom baking cookies, a living room with friends reading and knitting, and an office area. Sections of the train car were left "as is" to represent the regular commuting areas.