Investigated
Which countries are rolling out V2X infrastructure now?
Short answer
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China is the clearest large-scale rollout, with millions of C-V2X-equipped vehicles and extensive roadside infrastructure. The United States is deploying through federally funded corridors and state projects, while India is preparing a national framework and South Korea is largely retreating; Argentina has begun a live urban trial rather than a broad rollout.
The views on this question
Two lenses on the same evidence. Source weight and the primary source ratio show what each rests on.
Alternative
Source weight 50%Lens adapted to this topic: Where “rollout” overstates the evidence
A more cautious reading separates infrastructure that is live from programmes that are merely planned, trialled, or announced. On that measure, China has the clearest national-scale activity; the United States has geographically limited deployments; India and Argentina are testing or preparing; and South Korea shows that apparent momentum can reverse.
- China’s headline numbers do not mean universal coverage: the cited estimate places connected vehicles at roughly 4% of the national fleet.
- U.S. activity remains corridor- and project-specific, despite a federal ambition to accelerate nationwide deployment over the coming decade.
- India’s proposed mandate and consultation indicate preparation, while reporting says missing interoperability and backend systems limit immediate deployment.
- Buenos Aires demonstrates real-street experimentation in Latin America, but it is explicitly a single-city trial rather than evidence of countrywide rollout.
- South Korea is better classified as retrenching than rolling out: its programme was pushed toward a pause after a reported 97% budget reduction.