CHICAGO — Trains on the green, pink, and yellow CTA lines are back running after icy conditions halted them. Normal service on the Yellow, Green & Pink Lines is resuming after earlier delays ...

Update: Normal service resumes after Green, Yellow Line single-tracking. By Tim Richardson. July 24, 2014 at 4:57 p.m. EDT. Updated at 5 p.m. Normal service has resumed after brief single-tracking.