# What Are The Bells On Top Of Traffic Lights?

> Throughout the history of automobile travel, the general intersection setup hasn't changed much. The colored lights remain just red, yellow, and green — though researchers have suggested adding a new color – and the…

- **Source:** [SlashGear](https://www.slashgear.com/2115531/bells-on-top-of-traffic-lights-are-actually-cameras/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=69a87e1598e0db0b5529ae96)
- **Published:** 2026-03-04
- **Category:** Cars
- **Tags:** #cameras #lights #traffic #bells #adding #addition #automobile #changed
- **Canonical:** http://localhost:4321/a/69a87e1598e0db0b5529ae96

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_GearOpen's distilled summary. The full original article is published at SlashGear (source link above); GearOpen does not republish the source's full text._