Complex sentence: In 1965 when the University of Illinois' Chicago campus was opened, the station name was changed to "U of I-Halsted" and an additional exit to Peoria Street was added to access the campus.
Split into simpler sentences: In 1965 when the University of Illinois' Chicago campus was opened the station name was changed to "U of I-Halsted" to reflect this. The name change also added an additional exit to Peoria Street to access the campus.