CTA 'L' -- event advisory ======================================== Red Line Addison will see heavy inbound crowds from late morning through early afternoon for Wrigley Field, with post-game surges after 4 PM. Grant Park events cause significant Loop L and Metra Electric Museum Campus congestion starting 10 AM, with major outbound waves from 9 PM onward. Plan extra travel time on both corridors. source: AI events advisory (updated 17m ago)