SPaT Deployment Challenge

The SPaT Challenge

Vehicle to Infrastructure Deployment Coalition (V2I DC) - AASHTO  |  ITE  |  ITS AMERICA

A challenge to state and local public sector transportation infrastructure owners and operators to cooperate together to achieve deployment of roadside Dedicated Short Range Communications (DSRC) 5.9 GHz broadcast radio infrastructure to broadcast signal phase and timing (SPaT) in real-time at signalized intersections on at least one road corridor or street network (approximately 20 signalized intersections) in each of the 50 states by January 2020.   SPaT broadcasts are expected to be accompanied by MAP and RTCM broadcasts.

American Association of State Highway and Transportation Officials (AASHTO); Institute of Transportation Engineers (ITE); ITS America (ITSA)


Upcoming Webinars:

SPaT Challenge Design Considerations (Part 2) | April 17, 2018 2:00pm – 3:30pm ET

This webinar will present an overview of MAP messages, examples of MAP message creation approaches, vehicle position correction (needs and solutions) as well as an overview of vehicle position correction (needs and solutions).  More Information and Registration


SPaT Challenge: MAP Creator Tool | April 24, 2018  1:00pm – 2:30pm ET

This webinar will showcase the MAP creator tool through live technical demo that includes a step-by-step training on how to use the tool.  More information and Registration


SPaT Challenge Design Considerations (Part 3) | May 15, 2018 2:00pm – 3:00pm ET

This webinar will present an overview of intersection and roadside equipment specification, design and installation. This webinar will also discuss backhaul infrastructure design.  More Information and Registration


SPaT Challenge Deployment & Validation | June 12, 2018 2:00pm – 3:00pm ET

This webinar will present an overview of procurement process, validation/verification of SPaT deployments, and securing SPaT broadcast. This webinar will also discuss potential applications that DOTs could deploy and potential next steps.  More information and Registration


Click here for an overview from AASHTO Connected & Automated Vehicle Focus Area webinar


There is an informative map display at the link below, which illustrates those agencies actively participating in the SPaT Challenge, and those that have completed the Challenge.

See more details from the National Development Center of Excellence (

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