How many rail lines does the CTA operate?

The Chicago Transit Authority (CTA) operates eight rail lines, which are classified as the 'L' (short for "elevated") lines. These lines serve a critical role in the public transportation network of Chicago, connecting various neighborhoods and facilitating commuter travel to downtown and other key destinations. Each line has a unique color designation and runs on tracks that may be elevated, at street level, or underground.

The system's extensive reach and the number of lines help provide efficient transit options for residents and visitors alike, catering to a broad spectrum of transportation needs throughout the city. Understanding the number of rail lines is important for users of the transit system, as it directly relates to the service routes available and the overall accessibility of the CTA's offerings.