Now Available: Information on the Connected Vehicle Messages and Information Flows Used by the Connected Vehicle Pilots

The U.S. Department of Transportation (U.S. DOT) Intelligent Transportation Systems Joint Program Office (ITS JPO) has released details on the connected vehicle message data objects and information flows used by the Connected Vehicle Pilot sites.

The Connected Vehicle Pilot Deployment Program is a national effort to deploy, test, and operationalize cutting-edge mobile and roadside technologies and enable multiple connected vehicle applications. These innovative technologies and applications have the potential for immediate beneficial impacts -- to save lives, improve personal mobility, enhance economic productivity, reduce negative environmental impacts, and transform public agency operations. The U.S. DOT awarded three cooperative agreements collectively worth more than $45 million to initiate the design/build/test/deploy Connected Vehicle Pilot Deployment Program to three agencies: Wyoming Department of Transportation, New York City Department of Transportation, and Tampa Hillsborough Expressway Authority. 

The three Connected Vehicle Pilot sites are working collaboratively to identify and solve common challenges and ensure interoperability of their deployments. Working with the U.S. DOT, the Connected Vehicle Pilot sites collaborated to harmonize and align data elements that would make such interactions possible for the following connected vehicle messages:

  • Basic Safety Message
  • Traveler Information Message
  • Intersection Geometry Message
  • Signal Phase and Timing Message
  • Wireless Access in Vehicular Environments Service Advertisement Message.

The Connected Vehicle Pilot sites are making their Data Object Alignment spreadsheets available to stakeholders interested in deploying connected vehicle projects that are interoperable with the Connected Vehicle Pilot sites. Spreadsheets denoting the data objects used by each Connected Vehicle Pilot site for the aforementioned messages are noted on the Connected Vehicle Pilot Deployment Program's Publications page and are available upon request.

Aligning information flows across deployments can also help ensure interoperable connected vehicle deployments. To assist other deployers, the Connected Vehicle Pilot sites are also making their Information Flow Triples spreadsheet available. This spreadsheet documents the source and destination physical objects and the information flows exchanged among the objects from each Connected Vehicle Pilot site. The Information Flows Triples spreadsheet is available upon request

For additional information on Information Flow Triples, please see the National ITS Reference Architecture.