How Traffic Signals Work: An Engineering Explainer

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A 2019 blog post from Practical Engineering explains the mechanics behind traffic signal systems. The article breaks down how signals are timed, coordinated, and controlled to manage vehicle flow at intersections. It covers the technology and logic that govern when lights change, including sensors and timing cycles. The post recently resurfaced on Hacker News, attracting reader attention despite minimal discussion.

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How DBAs Safely Identify and Remove Unused SQL Server Indexes

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Developer uses Claude AI to rebuild portfolio, stresses human judgment remains essential

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ProgrammingDEV Community ·

How Docker Compose Can Create Reproducible AI Agent Evaluation Environments

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ProgrammingDEV Community ·

VMware Quietly Retreats from SmartNIC-Based Distributed Firewall Sales

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