Modernizing smart city transportation systems requires protecting every node in the Intelligent Transportation Systems (ITS) ecosystem. Connecting roadside field equipment directly to 5G networks, fiber backhaul, and central Traffic Management Centers improves mobility, but it also creates widespread operational technology and cybersecurity exposure. Building resilient roadway infrastructure requires state and local Department of Transportation (DOT) leaders to align critical assets with established security standards like ISA or IEC 62443 and NIST SP 800 82 Rev 3.
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