Metra on Monday acknowledged the confusion and began a public outreach effort that could potentially rename all of its lines by number or direction. For example, naming them M1 to M14 — with the “M” standing for Metra. Or naming them by their cardinal direction: N1, W1 and S1.

A change in the operation on three of Metra's lines is giving the agency an opportunity to rename all 14 lines, and the public has a chance to weigh in.

Metra has launched a survey to get feedback on potentially renaming lines to make the system “easier to understand for new and occasional riders,” according to the rail service on Monday.

Metra is considering renaming its lines in the Chicago area. The rail agency has released a survey to gauge public feedback on the potential changes, saying it aims to "make the system easier to understand for new and occasional riders."

Metra, the region’s commuter rail operator, wants public input on whether to change the identification of its 14 Chicagoland routes, each of which currently has a different name and a different color along with it. Metra’s current naming and color scheme — combined with the CTA’s rail lines, on a stylized map of downtown Chicago.