What does a horizontal white bar on a traffic light for trams and buses mean?
Signage: Traffic lights
Explanation
The **traffic lights for trams and buses** have a distinctive feature: a **horizontal white line** on a circular black background. This signaling is specific to these vehicles and does not apply to passenger cars.

When a traffic light of this type shows a **horizontal white stripe**, it indicates that passage is **prohibited** for trams and buses. It is similar to a "stop" sign for these vehicles, requiring them to stop and wait until the signal changes.
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