Faulty signal controls were caused by a worker falling on a circuit board, according to a report.
Major delays were reported for both Amtrak and Metra Thursday.
A woman and man were shot near the Diversey Avenue exit, authorities said.
Restricted parking will be enforced on a section of Milwaukee over the next two weeks, the city said.
Chicago police were called Friday morning about someone on the tracks near the Logan Square station.
Sections of Division and Hoyne will turn into tow zones Thursday.