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How Digital Road Signs Talk to Cars
What happens when a stop sign isn't just painted metal but a data packet broadcast over short-range radio? This episode unpacks the technical architecture behind digital road signage — the SAE J2735 message types, the 5.9 GHz band, the security certificates that prevent fake signs, and why physical signs aren't going anywhere. We also tackle the rollout reality: where the standards are, what's actually deployed, and why there's no single "NASN specification" to point to. Episode 4803 — myweirdprompts.com/n/4803 (permanent short link: myweirdprompts.com/322998)
The skinny
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