Research Data Exchange

The Research Data Exchange (RDE) is a web-based resource that manages and provides public access to multi-source and multi-modal transportation data to support the development and testing of intelligent transportation systems (ITS) and connected vehicle applications. This data-sharing capability allows researchers, application developers, and others to significantly reduce the cost and time required to collect and compile data for analysis or research. The RDE also contains a community forum for users to discuss projects, comment on data, and contribute analyses and data.

The RDE currently has ITS and connected vehicle data from 15 locations to support the analysis and development of connected vehicle applications. Data accessible through the RDE is quality checked, well documented, and freely available to the public.

RDE Features

The RDE provides access to connected vehicle and passengerrelated data involving transit vehicles, maintenance vehicles, probe vehicles, traffic monitoring and reporting devices, incident detection systems, traffic signals, and weather and other types of ITS sensors. These data types enable the analysis and research of a wide range of issues and factors. The RDE’s data sets contain various types of information, such as highway detector data, travel times, traffic signal timing data, incident data, and weather data. Data sets that are collected from the same location and time period are called data environments. Data may be searched by location or data type and registered users can download individual data files or groups of files.

The RDE supports version control to track updated versions of data. Whenever a data file is downloaded, the user will also receive a table listing the most recent version of each data set in the data environment. The RDE is federated with the Weather Data Environment (WxDE), which contains recent road weather observations from around the United States and Canada.

Submitting Data to the RDE

ITS researchers are invited to recommend or submit data for potential inclusion in the RDE. Once data is submitted, the U.S. Department of Transportation will assess the new data to determine if it meets quality standards and fits into the Department’s overall ITS data needs.

Data Available for Research

  • Safety Pilot Model Deployment - One Day Sample: Sanitized mobility data elements that were collected from over 2,700 connected vehicles that traversed Ann Arbor, Michigan during the Safety Pilot Model Deployment on April 11, 2013. The mobility data provided in this environment supports continued advancements in the connected vehicle domain as well as the development of applications to support improved transportation operation.
  • Probe Message Data: Actual and simulated vehicle trajectories and probe snapshot messages in SAE J2735 format from three tests at the Connected Vehicle Test Bed in Novi, Michigan.
  • Vehicle and Roadside Device Data: Integrated multimodal data from vehicles and roadside sensors from four test sites (Seattle, Washington; Portland, Oregon; Pasadena, California; and San Diego, California). Data includes light and transit vehicles, incidents, weather, freeway and arterial travel times, and traffic signal data.
  • Connected Maintenance Vehicles: Real-time and archived data from wirelessly-connected snowplows and maintenance trucks operated by the Minnesota Department of Transportation.
  • Basic Safety Message (BSM) Data - Orlando: BSM data collected every 0.1 second from transit vehicles at the 2011 World Congress Demonstration in Orlando, Florida.
  • BSM Data - Leesburg: BSM data collected every 0.1 second over a 2-month period from a vehicle in the vicinity of Leesburg, Virginia.
  • Connected Vehicles and Roadside Device Data: One day of connected vehicle, roadside equipment, and contextual data (e.g., weather, traffic signal data, and traffic volumes) from the Safety Pilot Model Deployment in Ann Arbor, Michigan.
  • Connected Vehicle and Queuing Data: Nine instrumented vehicles drove around the convention center during three days of the September 2014 ITS World Congress in Detroit, Michigan. This subset of data contains:
    • Basic safety messages from the instrumented vehicles, obtained by subscribing to the data clearinghouse.
    • Signal phase and timing messages from instrumented intersections around the convention center, obtained by subscribing to the data clearinghouse.
    • Traveler information messages broadcast by roadside units during the World Congress.
    • Queue counts collected manually by lane at the intersection of Larned and Shelby Streets, including counts of how many instrumented vehicles were in the queue each signal cycle.
    • Videos of queues at the Larned and Shelby intersection.
  • Weather and Environmental Data: During the 2014 World Congress, a specially instrumented demo van drove short loops on Belle Isle. In loop 1, road weather connected vehicle data was captured by the demo van and transmitted to the Weather Data Environment. In loop 2, advisory warnings (e.g., wet pavement or slippery roads), were issued, based on road weather conditions artificially generated on site. The data collected includes road weather-related observation data and advisory warnings. Learn more at:


The purpose of the RDE is to provide a variety of data-related services that support the development, testing, and demonstration of multimodal transportation mobility, weather, and environmental applications.


  • Enables systematic data capture from connected vehicles (automobiles, transit vehicles, and trucks), mobile devices, and infrastructure
  • Integrates data from multiple sources into data environments to be used by multiple applications for transportation management and performance measurement
  • Performs data quality checks and provides clean, well-documented data relevant to research

For more information about this initiative, please contact:

Ariel Gold
Program Manager, Data
ITS Joint Program Office
(202) 366-4374

1200 New Jersey Avenue, SE • Washington, DC 20590 • 800.853.1351 • E-mail OST-R

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