Which innovative big data application was FIRST successfully implemented in smart highways to significantly reduce traffic congestion?

Modern transportation systems increasingly rely on big data analytics to improve efficiency, safety, and sustainability. From intelligent traffic management to predictive maintenance of infrastructure, data has transformed how we design and operate transportation networks. This trivia question explores how transportation companies are leveraging big data specifically in the context of smart highways—one of the most innovative applications reshaping our road infrastructure and driving experience.

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Dynamic toll pricing based on real-time traffic density
AI-powered traffic light synchronization across metropolitan areas
Vehicle-to-infrastructure communication systems for autonomous vehicles
Predictive maintenance sensors embedded in road surfaces