What does the term "fare evasion" refer to in CTA operations?

The term "fare evasion" in Chicago Transit Authority (CTA) operations specifically refers to the act of riding without paying the required fare. This can involve a passenger not purchasing a ticket, failing to tap their fare card, or using other means to avoid paying. Fare evasion is a significant concern for transit agencies, as it affects their revenue and can lead to increased fares for compliant riders.

Understanding this concept is crucial for CTA operations staff, as it allows them to effectively monitor fare compliance, enforce fare policies, and ensure the financial sustainability of the transit system. The other options may involve issues related to fares, but they do not align with the definition of fare evasion specifically, which is focused solely on the action of not paying when required.