The smart traffic sign

The smart traffic sign is equipped with sensors that collect data on weather and traffic conditions, a control unit that processes this data to determine the safest speed, and a variable message sign that displays that speed as a recommended speed. The recommended speed is adjusted in accordance with the artificial intelligence’s decision, based on weather and traffic conditions, without the participation or assistance of a human.

The primary application is for road sections where frequent changes in weather conditions are expressed.

Sensors that collect data from the environment:

• The visibility measurement sensor uses the principle of “forward scatter” measurement to obtain accurate and reliable data. 
• The wind speed sensor measures wind speed and direction by timing the ultrasound signal from one transducer to the other.
• An adhesion coefficient sensor based on a camera and a laser measures road parameters and, based on the detected condition of the road surface, determines the adhesion coefficient.
• The traffic jam sensor detects the passage of each vehicle in the traffic lane and monitors its speed. Within a given time interval, the sensor detects the passage of a certain number of vehicles at a speed below the set speed limit, triggering the event “Queue Detected.”