Are there sensors in the ground at traffic lights?

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Issac Littel asked a question: Are there sensors in the ground at traffic lights?
Asked By: Issac Littel
Date created: Sat, Feb 27, 2021 7:16 PM
Date updated: Fri, Sep 23, 2022 2:23 AM

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Infrared sensors are another type of sensor often used in traffic signals. Instead of being embedded in the pavement, these sensors are mounted overhead to detect the presence of vehicles in an intersection. The two types of infrared traffic sensors are active infrared sensors and passive infrared sensors.

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