I boarded a "quiet car" last month in Philadelphia on the SEPTA line between the airport and center city. That's where cell phone calls are prohibited, and even conversations "should be short and conducted in a whisper."
We know that Metra train's don't have them because they "could force us to ask a paying customer who needs to use their phone to
leave that car and go to another car where they would have to stand," a Metra spokesman said in a Tribune story.
And sure, I know these quiet cars are generally just used on commuter rail lines. But why not the CTA? What do you think?