Smart cities work thanks to communication between cars and infrastructure: smart intersections shorten traffic jams when a car approaches, the crossing starts flashing

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This article explains how smart-city traffic systems use connected infrastructure, adaptive signals, and vehicle-to-infrastructure communication to reduce congestion and improve safety. It highlights practical applications such as priority signaling for public transport and emergency vehicles, dynamic green waves, and real-time warnings about accidents or roadworks. It also describes smart crossings and sidewalk alerts that help protect pedestrians and cyclists in busy urban areas. The piece connects these capabilities to broader city needs, including better traffic flow, lower emissions, and more effective control of access in restricted zones.

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