Passengers on the Brown, Orange and Green Lines may experience delays beginning 4 a.m. on Saturday until 8 p.m. Sunday, according to the CTA.
Crews will install a new signal control facility at Van Buren and Wabash. The work is part of CTA's plan to upgrade the signal systems in the Loop, which are more than 30 years old.
According to a CTA press release:
- Southbound Brown Line trains entering the Loop will operate clockwise around the Loop;
- Northbound Orange Line trains entering the Loop will operate counter clockwise around the Loop;
- Southbound Green Line trains will be rerouted to the track along Wells and Van Buren;
- All Pink Line and northbound Green Line trains will operate on their regular routes in the Loop.
CTA recommends customers allow extra travel time. The project is expected to be completed in late 2010. For travel information, go to www.transitchicago.com.