U.S. Department of Transportation/Federal Highway Administration
  • Upcoming RDE Data Environments Data Environment Release Schedule

    NGSIM (Next Generation Simulation)
    April 2016
    IDTO (Integrated Dynamic Transit Operations) - May 2016
    RESCUME (Response, Emergency Staging, Communications, Uniform Management, and Evacuation)
    June 2016

  • Data Graph
    RDE Version 2.3 is Here!
    Two Months of Safety Pilot Data . Nearly 113.1 GB to explore.
    New data navigation and filtering interface for safety pilot data (pictured). Select combinations of data files or filter to customize your download needs. Click here to open Data Graph.
    New download process. No waiting while we prepare your custom download - we email you a link.
  • 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 CDS 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 .

Upcoming RDE Data Environments1 Data Graph2 RDE Feedback3 RDE Samples Announcement4 Buses and cars communicating with each other and roadside equipment5


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 Connected Data Systems (CDS) 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 will be well-documented and freely available to the public. The vision of the CDS 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