Something wrong? Let us know
Checked
State dataTransportation
ICC Vehicle Volume Data
Published by Department of Transportation · Updated 07/29/2020 · Monthly
- Last updated
- 07/29/2020
- First published 09/18/2018
- Update frequency
- Monthly
- Formats
- 3
- CSV, JSON, XML
- Coverage
- Maryland
- Statewide
About this dataset
This dataset shows the number of vehicles that have passed under a gantry on that particular day. This dataset does not show trips, it only shows segments. Segments are compiled to make trips. There are 10 gantries on the InterCounty Connector (ICC) and 5 interchanges.
The eastbound gantries are 101, 105, 107, 109, 113, and the
westbound gantries are 102, 106, 108, 110, 114.
The dataset has a column for each gantry going east and west, then a total for each gantry.
The ICC is an all electronic tolling road which opened February 2011. The first opening was a partial opening, with only the first interchange being available for use.There was a free period from February 23, 2011 through March 6, 2011. The rest of the ICC opened in November 2011, and there was another free period from November 22, 2011 through December 4, 2011.
There are a few days where a low number of traffic passed under gantries (rows 196,198, 269,271...), these were either testing periods or construction vehicles.
Files and access
Links open the official government source
- CSV downloadopendata.maryland.govCSV
- JSON (SODA API)opendata.maryland.govJSON
- XMLopendata.maryland.govXML
API endpoint: https://opendata.maryland.gov/resource/8d75-q6az.json
Links open outside websites we do not control.
Frequently asked questions
- Who publishes ICC Vehicle Volume Data?
- Department of Transportation, part of State of Maryland, publishes this dataset on Maryland Open Data.
- How often is it updated?
- The publisher lists the update frequency as monthly. The last update was on 07/29/2020.
- How do I download it?
- It is available as CSV, JSON, XML. Use the links in Files and access, which open the official government source.
Similar data from other publishers
- Vehicle Inspection DataState of New Jersey · New Jersey Motor Vehicle CommissionVehicle Inspection Data for Vehicles registered in the state of New JerseyCSVJSONXMLUpdated 03/12/2026Yearly
- Vehicle Crash Data RepositoryState of ConnecticutThe Connecticut Crash Data Repository (CTCDR) is a web tool designed to provide access to select crash information collected by state and local police. This data repository enables users to query, analyze and print/export the data for research and informationaUpdated 07/17/2026
- Alternative Fuel Vehicle DataDepartment of Energy · U.S. Energy Information AdministrationAnnual data on the number of on-road alternative fuel vehicles and hybrid vehicles made available in the U.S. Data on the use of alternative fueled vehicles and the amount of fuel they consume is also available. Based on Form EIA-886 data and data extend back Updated 05/22/2019
- Vehicle FatalState of Connecticut · Connecticut Department of TransportationFatal Crashes - All crashes where at least one person involved was fatally-injured. These data are based upon only the crash reports. The reports are delayed until the investigation is completed, which, in the case of fatal crashes, can take three to six monthCSVZIPGeoJSONKML+1Updated 11/12/2024
- 2017 For Hire Vehicle Trip DataCity of New York · Taxi and Limousine Commission (TLC)These records are generated from the For-Hire Vehicle (“FHV”) Trip Record submissions made by traditional livery, luxury, and black car bases. The FHV trip records include fields capturing the dispatching base license number and the pick-up date, time, and taxCSVJSONXMLUpdated 10/22/2018As needed
Where this catalog comes from
- Data.gov CatalogU.S. General Services Administration
- State and local open data portalsSocrata Discovery API
- State and city CKAN portalsCalifornia, Virginia, Boston, Houston and more
- Government ArcGIS Hub sitesCity and county GIS data
Catalog checked 10/24/2026
We list dataset descriptions only. Downloads and APIs link straight to the official government source, which holds the current version and its terms of use.
Source: Maryland Open Data and Data.gov · Last updated 10/24/2026 · Listing only; the data stays with the publisher
Share: