Editing Green Line (CTA) (section)

===The Loop===
In downtown [[Chicago]], the Green Line operates over the famous [[The Loop (CTA)|Union Loop]] "L" structure along with [[Brown Line (CTA)|Brown Line]] (Ravenswood), [[Orange Line (CTA)|Orange Line]] (Midway), [[Pink Line (CTA)|Pink Line]] (Douglas) and [[Purple Line (CTA)|Purple Line Express]] (weekday rush hours only) trains. Green Line trains operate both ways over the Lake Street and Wabash Avenue sides only, and do not use the Wells Street and Van Buren Street sides of the Loop.

The Green Line is the only line in the "L" system that has two entry/exit points to the elevated Loop, the only "L" line that runs in both directions on the Loop, and the only route that uses the Loop but does not terminate there. Its route uses the Wabash and Lake sides of the Loop, which are also used by the Orange, Pink, Purple and Brown Lines, which operate around the Loop and then return to their route terminal.