TikTok user surprises Sydney drivers with little-known fact about traffic light system

REVEALED: The little-known traffic light system that left Sydney residents dumbfounded and changed the way they drive FOREVER

  • TikTok users stun Sydney drivers with little-known traffic light system fact
  • The TikToker wrote the eye-catching jingle revealing the sensors are detecting cars on the road
  • The song shows users the best way to turn traffic lights green at intersections
  • Social media users were amazed when they discovered a little-known fact

Sydney drivers were left stunned after discovering a little-known traffic light trick.

In a video uploaded to TikTok by Bennymofodavis on Friday, it was revealed that Sydney’s traffic lights are changing color as a sensor under the road detects the vehicle.

“Hey, drivers on the road, these lines you can see are apparently electromagnetic sensors,” the video begins.

A TikTok user pointed out that there are sensors under the road at traffic light intersections in a catchy viral tune

“And when you land on them, that’s how the lights know it.”

“Go from red to green and let the cars go. “

The video not only amused social media users, but shocked Sydney drivers who were unsure of how the traffic light system worked.

“An Australian girl here, fully licensed for 10 years and never knew how the traffic lights worked, just thought they were timed,” one user wrote.

“To be honest, I’ve never been told about it until now,” commented another.

“This should be an announcement for Transport NSW,” suggested a third.

The TikTok user wrote the song as a personal service announcement for drivers stopping a little too far behind the line, wasting motorists time and fuel.

The sensors detect the weight of the car causing the traffic light to change from red to green

The sensors detect the weight of the car causing the traffic light to change from red to green

As the video highlighted, New South Wales roads use the Sydney Coordinated Adaptive Traffic System (SCATS) to optimize traffic.

Inductive loop detectors are buried below the road surface to detect the presence of vehicles at most intersections across Australia.

Positioning a vehicle is essential for a red light to turn green as quickly as possible.

A car usually needs to be stopped directly behind the white line of an intersection to cross the loop and be detected.


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