Trains on the O'Hare branch of the Blue Line will operate on a revised schedule on weekends starting late Friday, September 29, while a contractor installs fiber optic cables along portions of the right-of-way between Grand and Jefferson Park. The cable installation is part of a program to upgrade communications on the CTA's rapid transit system.
The work will be performed from 10 p.m. Friday night until about 2 a.m. the following Monday morning every weekend through November 17-20. Single-track zones will be established to allow trains to operate alternately on the same track in both directions while the work proceeds. A maximum of five stations will be affected on any weekend.
Over the weekend starting September 29, the single-track zone will affect only the stations at Logan Square, Belmont and Addison, where customers at already board trains heading in both directions from the same center ?island? platform at each location.
During the first weekend of the project, Blue Line trains will operate in the same direction every 15 minutes, except from 1 a.m. until 5 a.m. on Saturdays and Sundays, and from 1 a.m. until 3:30 a.m. on Mondays, when they will run 30 minutes apart. After 3:30 a.m. on Mondays, regular weekday schedules will be in effect.
To maintain appropriate service intervals while the work is going on, trains on the Cermak branch of the Blue Line will operate as shuttles from 10 p.m. until 1 a.m. on Friday evenings between 54th/Cermak and Racine. Customers can change to other Blue Line trains at Racine to complete their trips.# # #