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Data for Automated Vehicle Integration (DAVI)


The U.S. Department of Transportation (U.S. DOT) launched DAVI as a multimodal initiative to identify, prioritize, monitor, and – where necessary – address data exchange needs for automated vehicles (AV) integration across the modes of transportation. Access to data is a critical enabler for the safe, efficient, and accessible integration of AVs into the transportation system. Lack of access to data could impede AV integration and delay their safe introduction.

In Preparing for the Future of Transportation: Automated Vehicles 3.0 (AV 3.0), U.S. DOT calls on stakeholders to identify opportunities for voluntary data exchanges. This webpage provides information on DAVI resources and activities aimed at facilitating mutually beneficial data exchanges, including the Work Zone Data Exchange (WZDx) project featured in AV 3.0. A U.S. DOT presentation on the DAVI initiative from November 8, 2018, is available here with associated slides.

DAVI Guiding Principles

The DAVI Guiding Principles define an approach for U.S. DOT and our stakeholders to prioritize and facilitate the iterative development of voluntary data exchanges. The principles shape actions by U.S. DOT and its partners to increase access to data for AV integration, and lead to actionable priorities and clear roles in implementation. U.S. DOT continues to refine and use these principles to engage with potential data generators and users.

Read more about the DAVI Guiding Principles

DAVI Framework

The U.S. DOT DAVI Framework provides a common language for identifying and prioritizing data exchange needs across traditional silos. It is designed to help stakeholders working on diverse aspects of AV integration understand each other’s data needs and learn from successful exchanges as they emerge. The framework defines key categories, goals, participants, and priorities of data exchange identified by the Department’s stakeholders, such as data on work zones that AVs need to navigate safely. U.S. DOT continues to refine and update the framework based on stakeholder inputs.

Read more about the DAVI Framework

Addressing Data Exchange Priorities

U.S. DOT hosted the Roundtable on Data for Automated Vehicle Safety in December 2017 to discuss potential priorities for voluntary data exchanges to accelerate safe AV integration (see summary report). The Department kicked off the WZDx project in March 2018 to take on one of the priorities identified at the roundtable. More information on WZDx is available below.

The Department continues to identify potential data exchange priorities via various stakeholder engagement activities. Visit the Events and Public Notices pages for more information on opportunities to engage, or contact us at

U.S. DOT recently announced a Notice of Funding Opportunity (NOFO) to apply for $900 million in discretionary grant funding through the Better Utilizing Investments to Leverage Development (BUILD) Transportation Discretionary Grants program. On pages 17 and 34, the NOFO references work zone data exchanges as a type of innovative technology that applicants are encouraged to include in their applications. This could include making an open work zone data feed available using a common work zone data specification. Applications are due July 15, 2019; visit the BUILD grants webpage for more information.

U.S. DOT is committed to providing public access to data funded through its research programs, including the Automated Driving System Grants program. Visit the Intelligent Transportation Systems (ITS) DataHub to find new data sets, including recent releases from the Cooperative Automated Research Mobility Applications (CARMA) program.


Work Zone Data Exchange (WZDx)


The WZDx Specification enables infrastructure owners and operators (IOOs) to make harmonized work zone data available for third party use. The intent is to make travel on public roads safer and more efficient through ubiquitous access to data on work zone activity. Specifically, the project aims to get data on work zones into vehicles to help automated driving systems (ADS) and human drivers navigate more safely.

Up-to-date information about dynamic conditions occurring on roads–such as construction events–can help ADS and humans navigate safely and efficiently. Many IOOs maintain data on work zone activity. However, a lack of common data standards and convening mechanisms makes it difficult and costly for third parties–including original equipment manufacturers (OEMs) and navigation applications–to access and use these data sets across various jurisdictions.

Thus, inspired by the General Transit Feed Specification (GTFS), U.S. DOT launched WZDx to jumpstart the voluntary adoption of a basic work zone data specification through collaboration with data producers and data users. Longer term, the goal is to enable collaborative maintenance and expansion of the specification to meet the emerging needs of ADS.

More broadly, through this project, U.S. DOT aims to identify a repeatable approach to accelerate harmonization of local data sources that can improve roadway safety and efficiency.

A U.S. DOT webinar on the WZDx project from February 26, 2019, is available here with associated slides.


Common Core Data Specification

Five State departments of transportation and six companies from private industry voluntarily defined the core data elements that should be included in a basic work zone specification, with U.S. DOT acting as technical facilitator. Version 1.1 (v1.1) of the WZDx specification is now available for IOOs to stand up data feeds. Once these data feeds are available, OEMs, navigation applications, and others can use the data. Visit the WZDx project for more information, to set up or ingest a feed, and/or to provide feedback on the specification.

Recordings are available from the working group meetings that led to development of the v1.1 specification.

For information on the WZDx project or anything else related to the DAVI initiative, please contact

Updated: Friday, May 10, 2019
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