U.S. Department of Transportation/Federal Highway Administration
  • New RDE Release 2.2 Features
    New RDE Release 2.2 Features
    Data Search. Users can now search metadata files for key terms.
    Data Visualization. Users can see how many datasets and what volume of data is available by clicking on graphics to drill down through the tag hierarchy.
    Data Versioning (available since February, 2015). As of February, 2015, the RDE provides version information with every file download.
    New Data.
    ITS World Congress Connected Vehicle.
    Road Weather Demonstration.
  • New RDE Data Environments
    New RDE Data Environments
    Belle Isle Data. This data was collected at the IMO demo during the 2014 ITS World Congress. Vehicle sensor data were gathered under simulated conditions, including rain and slick roads, to activate advisories related to wiper status, braking, and other systems.
    Detroit City Data. This data was collected from nine vehicles and several instrumented intersections during the 2014 ITS World Congress, as part of a Queue Length Study. Queue length data and video were also collected by field researchers.
  • RDE Feedback RDE Feedback

    As part of the RDE Release 2.2 we are soliciting feedback from current and potential users of ITS and Connected Vehicle data. We realize the importance of gauging end-user satisfaction since the RDE is the DCM Program's primary interface to the broader transportation research community. We need your input to help us make the RDE a more user-friendly and impactful resource within the research community! Please login or create a new account to provide feedback.

  • RDE Samples Announcement We Have Samples!

    The RDE now has SAMPLE files you can download and evaluate. These Samples contain the same columns and data types as the complete files, but contain only a few records. Samples allow you to confirm your data ingestion and processing routines with very low overhead.

  • Buses and cars communicating with each other and roadside equipmen Connected Vehicle Research

    The US DOT ITS program is researching connected vehicle technologies and applications. Our vision is one of pervasive real time data that connects vehicles, transportation infrastructure, and mobile devices to enable applications that improve transportation safety, mobility, and the environment. For more information on the US DOT connected vehicle research program, please visit US DOT ITS Joint Program Office .

RDE Visualization Panel.2 Road Weather Data Simulation.3 RDE Feedback.4 RDE Samples Announcement.5 Buses and cars communicating with each other and roadside equipment9


The Research Data Exchange (RDE) is developed as a transportation data sharing system that promotes sharing of both archived and real-time data from multiple sources (including vehicle probes) and multiple modes. This new data sharing capability will better support the needs of ITS researchers and developers while reducing costs and encouraging innovation.

The primary purpose of the DCM (Data Capture and Management) Research Data Exchange is to provide a variety of data-related services that support the development, testing, and demonstration of multi-modal transportation mobility applications being pursued under the USDOT ITS Dynamic Mobility Applications (DMA) Program and other connected vehicle research activities. Data accessible through the Research Data Exchange is well-documented and freely available to the public. The vision of the DCM Program is to enhance current operational practices and transform future transportation systems management through the active acquisition and systematic provision of integrated data from infrastructure, vehicles, and travelers. This data is available to researchers, application developers, and others.

Basic information, including the list of data environments, is available to all site visitors. Registered users may also To register, click here