Those white cameras mounted above traffic lights serve a little-known purpose
Many people are up in arms over Flock and similar cameras that can track you when you drive. But these cameras are there for a whole different reason.
The white cameras seen above traffic lights serve a purpose different from the Flock cameras that raise privacy concerns. Automatic license plate readers (ALPRs) are not the sole reason behind these cameras, as many are designed to monitor traffic flow. Unlike Flock cameras, these cameras are used to keep traffic moving smoothly, rather than tracking individual drivers.
Some cameras are even linked to automatic signaling systems that control traffic lights. While rare, there are systems that automatically control traffic lights based on real-time data, which can help manage congestion. These cameras are not designed to capture evidence for law enforcement, but rather to provide live data to transportation departments, helping them make necessary adjustments to traffic signals.
In many cases, these cameras are tied to automatic signaling systems, sending data to control systems that determine when lights should change. Other cameras use radar, infrared cameras, and electromagnetic detectors embedded in roads to detect vehicles. The specific use of these cameras depends on local laws and the needs of each intersection.
While there is understandable concern over ALPRs, the cameras atop traffic lights are usually just there to maintain traffic flow.
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