Personal recollection: Long. long ago (c. 1977), on a planet far, far away (Chicago), I assisted in an annual station count on the IC (this was pre-METRA), the purpose of which was to afford IC management some rough idea of patronage at various stations along the IC electric line throughout the day. We were supposed to record debarks from IC trains. At 57th, 58th, 59th Street--Hyde Park (University of Chicago), a few intrepid graduate students would ride the South Shore from downtown Chicago (South Water Street Station, next to IC's Randolph Street Station), and, knowing that on eastbound CSS trains they wouldn't have their tickets checked and punched until AFTER the train entered CSS tracks (south of Kensington, or maybe 95 the Street,as I recall), they would bolt off the train at Hyde Park, look furtively around for THE LAW, and seeing none, would vault over the turnstyles and scuttle like crabs away from the station as fast as possible. In this way, they procured for themselves free transportation.
How could this happen? Well, the South Shore had authority to carry passengers from Chicago points on the IC, over which it had--and still enjoys-- trackage rights (read from Downtown through Hyde Park) to CSS stations, but it's authority did not include intra-Chicago passenger traffic, because that little market was the preserve of the IC.
IC people informed me that, especially in the early days, the automated fare system had notable imperfections. Enterprising riders would cheat by inserting a xeroxed $20 bill into the machine, which it would then accept. One presumes that todays fare card machines are a tad more sophisticated...
CSSHEGEWISCHThe automated fare system on the IC actually dates back to about 1965 and was installed in a piecemeal fashion. The original gates were installed at the three downtown stations (Randolph, Van Buren and Roosevelt Rd) and were gradually installed at the outlying stations.
True. I remember them being all the way to Blue Island in the 70s. I'm surprised to see a report that some stations just got them recently.