Chicago Transit Authority

Page was created on 10/16/2023

CTA bus # 1542 at the Chicago Midway Airport station.

Some Information & Photos in this section were provided by:

Trainz and Planes
Pink Railfan


The Chicago Transit Authority (CTA) is the main public transit operator in the city of Chicago & its inner suburbs. The agency operates 8 elevated urban rail lines & a multitude of bus routes.


Agency Snapshot

Established: October 1, 1947.
Services Provided: Elevated Urban Rail, Local & Express (fixed-route) Bus.
Number of Fixed Bus Routes: 140.
Number of Rail Routes: 8.
Number of Revenue Vehicles: Roughly 1,880 fixed-route buses. Roughly 1,190 railcars.
Number of Major Transit Hubs: Numerous, with some being at rail stations. However, much of the bus network operates on a grid.

A Blue Line train approaching one of the Dearborn St subway stations.

System Overview

CTA # 1662 near Roosevelt Station.

The CTA largely employs a grid system for its bus network, where transfers are done street-side. However, there are hubs located throughout the service area – including at rail stations – where customers can connect to multiple bus routes from a single location. The agency also operates 8 color-coded elevated urban rail lines – called the “L” – to transport customers quickly in & out of the downtown loop.

While the CTA operates bus routes within the inner suburbs, bus service in the outer suburbs are handled by the Regional Transportation Authority Suburban Bus Division, also known as Pace (Pace also handles all paratransit services within the city). Commuter rail services in the Chicago region are operated by the Northeast Illinois Regional Commuter Railroad Corporation, also known as Metropolitan Rail, or simply Metra.

Most CTA local bus routes operate 7-days-a-week, with many operating through late evenings, & some routes operate overnight (OWL) service. Express routes tend to only operate weekday peak hours & other routes may also operate in a limited capacity.

Holiday Schedule

The CTA operates a Sunday-level schedule on most major holidays.

Fare Structure

The CTA accepts cash for one-way bus fares. However, the preferred payment method is the Ventra Card – which is a smartcard system that allows customers to load a desired amount & simply tap & go to pay their fare. For those only intending to ride the CTA system a couple of times during a period of time, disposable Ventra Tickets are also available.

Contactless debit & credit cards, as well as mobile wallet apps (such as Google Pay) are also accepted. As with other transit agencies, if you decide to pay using cash, please use exact change. Bus operators cannot handle change. All Ventra ticket/card vending machines accept cash.


Vehicle Fleet

Being a larger transit agency, the CTA has roughly 1,880 buses & 1,190 railcars. A chunk of the agency’s bus fleet was manufactured by Nova Bus, with the other chunk being produced by New Flyer Industries. The agency also possesses a small fleet of Proterra Catalyst battery electric buses. For the “L” system, the oldest active railcar fleet was manufactured by Budd Company, with subsequent active fleets being produced by Morrison-Knudsen & Bombardier respectively. The next generation of railcars are currently being produced by CRRC Sifang America.

New Flyer D40LF

Part of the oldest generation of low floor buses produced by New Flyer, the D40LF has been a long-time powerhouse of the CTA fleet. These buses are steadily being replaced by newer Nova Bus LFS models.

New Flyer D60LF & DE60LF

Part of the oldest generation of low floor buses produced by New Flyer, the D60LF is the articulated version of the D40LF. The CTA also operates diesel-electric hybrid versions – the DE60LF.

New Flyer D60LFR & DE60LFR

The D60LFR & DE60LFR are restyled versions of their predecessor low floor buses, featuring a curved front end. The current Xcelsior line of buses is the replacement for the LFR line.

Nova Bus LFS

Seen as a powerhouse at many larger transit agencies, the Nova Bus LFS is currently replacing all of the older New Flyer 40′ units.

Proterra Battery Electrics

The CTA currently has 25 Proterra Catalyst units, with 25 ZX5 units on order. It is currently unclear if the manufacturer’s recent bankruptcy filing will impact the upcoming order.

New Flyer Xcelsior “Charge”

The CTA currently has 2 New Flyer XE40 units. However, I’ve been advised that they’ve seen somewhat limited service. There are currently no concrete plans to order additional units.

Budd 2600-Series

Many transit riders & enthusiasts may think of New York City’s iconic R32 subway railcars when it comes to the Budd Company, but they also manufactured the oldest active urban railcar fleet for the Windy City! The fleet was rehabbed by Alstom between 1999 & 2002. Be sure to get your rides on them should you visit, as the new 7000-Series railcars are slated to replace them.

Morrison-Knudsen 3200-Series

The 3200-Series railcars are somewhat similar in appearance to the 2600-Series, but are flanked with ribbed side exterior panels. Some trains were originally fitted with rooftop pantographs for service on the Yellow Line prior to it being converted to third rail power. Trains have been fitted with digital exterior destination signs as part of mid-life rehab.

Bombardier 5000-Series

The 5000-Series ushered in the beginning of new generation, technoligically advanced railcars for the “L”. Fitted with AC (alternating current) traction equipment, customers are able to enjoy a smooth, comfortable ride in comparison to the older trains. Exterior & interior LED signs provide information to customers in a manner by which they can be changed quickly if needed.

CRRC 7000-Series

The 7000-Series, while somewhat similar in appearance to the 5000-Series, features technological advancements & a unique blue front end. The seating arrangement & other elements of the train are hybrid between the 3200-Series & the 5000-Series (for instance: the 3200-Series trains feature mostly transverse seating, while the 5000-Series trains feature mostly longitudinal seating).


A detailed fleet photo gallery is coming in the distant future.