For those of you who read this blog in Chicago know very well that the Red Line, Chicago’s busiest subway line, is undergoing major construction as the transit authority rebuilds much of the line. But what exactly does that entail?
Earlier this year the Chicago Tribune looked at that and with a series of illustrations, explained the different steps of the process. This first section details the steps taken to rip up the rails.

Credit for the piece goes to Jemal R. Brinson and Kyle Bentle.