This dataset contains the historical estimated congestion for the 29 traffic regions, from January 2013 to May 2018. Newer records are in https://data.cityofchicago.org/d/sxs8-h27x. The most recent estimates for each region are in https://data.cityofchicago.org/d/t2qc-9pjd.

The Chicago Traffic Tracker estimates traffic congestion on Chicago’s arterial streets (non-freeway streets) in real-time by continuously monitoring and analyzing GPS traces received from Chicago Transit Authority (CTA) buses. Two types of congestion estimates are produced every 10 minutes: 1) by Traffic Segments and 2) by Traffic Regions or Zones. Congestion estimates by traffic segments gives observed speed typically for one-half mile of a street in one direction of traffic. Traffic Segment level congestion is available for about 300 miles of principal arterials. Congestion by Traffic Region gives the average traffic condition for all arterial street segments within a region. A traffic region is comprised of two or three community areas with comparable traffic patterns. 29 regions are created to cover the entire city (except O’Hare airport area). There is much volatility in traffic segment speed. However, the congestion estimates for the traffic regions remain consistent for a relatively longer period. Most volatility in arterial speed comes from the very nature of the arterials themselves. Due to a myriad of factors, including but not limited to frequent intersections, traffic signals, transit movements, availability of alternative routes, crashes, short length of the segments, etc. Speed on individual arterial segments can fluctuate from heavily congested to no congestion and back in a few minutes. The segment speed and traffic region congestion estimates together may give a better understanding of the actual traffic conditions. Current estimates of traffic congestion by region are available at http://bit.ly/103beCf.

Point data representing locations of CTA bus stops. See attachment below for information on STATUS and POS fields
To view or use these files, compression software and special GIS software, such as ESRI ArcGIS is required.
Projected Coordinate System: NAD_1983_StatePlane_Illinois_East_FIPS_1201_Feet

This list of 'L' stops provides location and basic service availability information for each place on the CTA system where a train stops, along with formal station names and stop descriptions.

Chart of average sale prices by month.

List of physical locations where fare media were sold through approximately July 2014, prior to the implementation of Ventra cards. The locations for Ventra card sales/reloading are more extensive and not yet available in dataset format. Please see http://www.transitchicago.com/ventra for information on the Ventra program and https://www.ventrachicago.com/retailers/locations to find Ventra retail locations.

Electronic scooter trips taken during the 2019 Chicago pilot program. For more information on the pilot, see https://www.chicago.gov/scooters.

Map representing locations of CTA bus stops.

Curb lines for the city of Chicago. Curb lines mark the points where curbs meet the edge of the street pavement. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required.

OUTDATED. See the current data at https://data.cityofchicago.org/d/6imu-meau -- Street center lines in Chicago. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required. Metadata may be viewed and downloaded at http://bit.ly/HLdp8B.

Metra commuter rail stations in the Chicagoland region. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required. To download, right-click the "Download" link above and choose "Save link as."

Railroad lines in Chicago. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required.

All trips, starting January 2023, reported by Transportation Network Providers (sometimes called rideshare companies) to the City of Chicago as part of routine reporting required by ordinance. For earlier trips, see the link in the Featured Content section below. This version of the datasets contains three new columns, marked in their column descriptions.

Census Tracts are suppressed in some cases, and times are rounded to the nearest 15 minutes. Fares are rounded to the nearest $2.50 and tips are rounded to the nearest $1.00.

For a discussion of the approach to privacy in this dataset, please see https://data.cityofchicago.org/stories/s/82d7-i4i2.

Metra commuter rail lines in the Chicagoland region. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required. To download, right-click the "Download" link above and choose "Save link as."

Operation of a taxi cab in Chicago requires a City-issued medallion. These medallions may be sold on the open market, with the City of Chicago recording the sale and change in ownership. This dataset shows such medallion transfers.

See https://www.cityofchicago.org/city/en/depts/bacp/supp_info/medallion_owner_information.html for more information about taxi medallions in Chicago.

See https://data.cityofchicago.org/d/tfm3-3j95 for the current Public Passenger Vehicle Licenses in Chicago. For taxis, the Public Vehicle Numbers will match between these datasets.

Sidewalks in Chicago. To view or use these shapefiles, compression software, such as 7-Zip, and special GIS software, such as ESRI ArcGIS or QGIS, are required. To download this file, right-click the "Download" link above and choose "Save link as." Once unzipped, the .dbf file may be opened in any spreadsheet program, such as Microsoft Excel, and identifies the address associated with each sidewalk polygon where possible. Note this is a draft file and may be updated periodically.

OUTDATED. See the current data at https://data.cityofchicago.org/d/i6k4-giaj -- No parking is allowed on Snow Routes when there is two or more inches on the ground regardless of date or time. To view or use these shapefiles, compression software and special GIS software, such as ESRI ArcGIS or QGIS, is required. To download this file, right-click the "Download" link above and choose "Save link as."

CTA Bus Stops - Point data representing over 11,000 CTA bus stops. The Stop ID is used to get Bus Tracker information.

Projected Coordinate System: NAD_1983_StatePlane_Illinois_East_FIPS_1201_Feet

Taxi trips reported to the City of Chicago in its role as a regulatory agency. To protect privacy but allow for aggregate analyses, the Taxi ID is consistent for any given taxi medallion number but does not show the number, Census Tracts are suppressed in some cases, and times are rounded to the nearest 15 minutes.

Due to the data reporting process, not all trips are reported but the City believes that most are.

See http://digital.cityofchicago.org/index.php/chicago-taxi-data-released for more information about this dataset and how it was created.

See http://dev.cityofchicago.org/open%20data/data%20portal/2019/04/12/tnp-taxi-privacy.html for further discussion of the approach to privacy in this dataset.

See http://dev.cityofchicago.org/open%20data/data%20portal/2019/07/01/taxi-dataset-relaunch.html for discussion of significant changes in July 2019.

Traffic fatalities within the City of Chicago that are included in Vision Zero Chicago (VZC) statistics. Vision Zero is Chicago’s commitment to eliminating fatalities and serious injuries from traffic crashes. The VZC Traffic Fatality List is compiled by the Chicago Department of Transportation (CDOT) after monthly reviews of fatal traffic crash information provided by Chicago Police Department’s Major Accident Investigation Unit (MAIU).

CDOT uses a standardized process – sometimes differing from other sources and everyday use of the term -- to determine whether a death is a “traffic fatality.” Therefore, the traffic fatalities included in this list may differ from the fatal crashes reported in the full Traffic Crashes dataset (https://data.cityofchicago.org/d/85ca-t3if).

Official traffic crash data are published by the Illinois Department of Transportation (IDOT) on an annual basis. This VZC Traffic Fatality List is updated monthly. Once IDOT publishes its crash data for a year, this dataset is edited to reflect IDOT’s findings.

VZC Traffic Fatalities can be linked with other traffic crash datasets using the “Person_ID” field.

State of Illinois considers a “traffic fatality” as any death caused by a traffic crash involving a motor vehicle, within 30 days of the crash. Fatalities that meet this definition are included in this VZC Traffic Fatality List unless excluded by any criteria below. There may be records in this dataset that do not appear as fatalities in the other datasets.

The following criteria exclude a death from being considered a "traffic fatality," and are derived from Federal and State reporting standards.

1. The Medical Examiner determined that the primary cause of the fatality was not the traffic crash, including:

a. The fatality was reported as a suicide based on a police investigation.

b. The fatality was reported as a homicide in which the "party at fault" intentionally inflicted serious bodily harm that caused the victim's death.

c. The fatality was caused directly and exclusively by a medical condition or the fatality was not attributable to road user movement on a public roadway. (Note: If a person driving suffers a medical emergency and consequently hits and kills another road user, the other road user is included, although the driver suffering a medical emergency is excluded.)

2. The crash did not occur within a trafficway.

3. The crash involved a train or other such mode of transport within the rail dedicated right-of-way.

4. The fatality was on a roadway not under Chicago Police Department jurisdiction, including:

a. The fatality was occurred on an expressway. The City of Chicago does not have oversight on the expressway system. However, a fatality on expressway ramps occurring within the City jurisdiction will be counted in VZC Traffic Fatality List.

b. The fatality occurred outside City limits. Crashes on streets along the City boundary may be assigned to another jurisdiction after the investigation if it is determined that the crash started or substantially occurred on the side of the street that is outside the City limits. Jurisdiction of streets along the City boundary are split between City and neighboring jurisdictions along the street centerline.

5. The fatality is not a person (e.g., an animal).

Change 12/7/2023: We have removed the RD_NO (Chicago Police Department report number) for privacy reasons.

A list of the stations currently in service where one can pick up and return bicycles from the Divvy bicycle sharing system (http://divvybikes.com/). For real-time status of stations in machine-readable format, see https://gbfs.divvybikes.com/gbfs/gbfs.json.

Electric scooter trips taken during the 2020 Chicago pilot program. For more information on the pilot, see https://www.chicago.gov/scooters.

In contrast to the 2019 E-Scooters dataset (https://data.cityofchicago.org/d/2kfw-zvte), vendor names are included. Additionally, Census Tracts are provided in a separate dataset to allow for providing more data while still protecting privacy. See "E-Scooter Trips - Census Tract Summary - 2020" dataset (https://data.cityofchicago.org/d/3srm-twg4).

Data feeds which provide a pathway for developers to retrieve estimated arrival times, bus stop lists, route patterns, vehicle location information and more from the CTA Bus Tracker (SM) service and incorporate it into third-party apps and projects.

Chart of Taxi Trips and Fare Totals by Month

This dataset shows bus stops in shelters and at CTA rail stations which have digital signs added to them to show upcoming arrivals. The listing is subject to change.

OUTDATED, HISTORICAL VERSION -- Lines representing approximately where the CTA 'L' (rail) lines are. To view or use these files, special GIS software, such as Google Earth, is required.