Which of the following traffic lights for vehicles does not exist?
Signage: Traffic lights
Explanation
**Triangular traffic lights for vehicles** do not exist. The traffic lights used to regulate vehicle traffic are **circular** or **square** in shape.
- **Circular traffic lights** are the most common and are used to control the flow of traffic at intersections. They have colored lights (red, yellow, and green) that indicate when vehicles must stop, prepare to move, or continue their journey.
- **Square traffic lights**, also known as lane traffic lights, are used to manage the use of specific lanes. These traffic lights indicate to drivers whether they can or cannot drive in a particular lane, using lights in the shape of a cross or arrow.
Therefore, the correct option is that triangular traffic lights for vehicles do not exist.
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