V2X Application Mapping in Networked V2X

As Departments of Transportation (DOTs) at every level look to modernize infrastructure and improve roadway safety, connected vehicle technologies are playing an increasingly central role. Vehicle-to- Everything (V2X) communication, which was once pursued exclusively through the lens of dedicated short-range communication (DSRC) or direct Cellular-V2X (C-V2X) operating on the 5.9 GHz band, is now evolving into a broader ecosystem that includes network-based communication over commercial cellular networks. This evolution has enabled a new category of deployable applications known collectively as networked V2X.

This document is intended as a practical guide for members of the Intelligent Transportation Systems (ITS) community – particularly ITS and Connected and Automated Vehicle (CAV) specialists at state, county, and local DOTs – who are seeking to better understand, plan for, and potentially implement networked V2X solutions.

Rather than focusing solely on conceptual definitions or theoretical capabilities, this document maps out real-world use cases where networked V2X is already being deployed to deliver measurable safety and mobility outcomes. It also builds on the expansive foundation of V2X applications identified and developed by V2X stakeholders over more than two decades, all originally envisioned for deployment within the 5.9 GHz band before the emergence and rapid proliferation of networked V2X.