# Ever Notice Some Traffic Lights Have Lines On Them? Here's What They're For

> Look closely, and you might find that there are more variations in traffic lights than you realized. Some have white lights that aren't meant for car drivers, while others have inconspicuous white boxes that gather data…

- **Source:** [SlashGear](https://www.slashgear.com/2141035/traffic-light-lines-what-slats-louvres-covers-are-for/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=69d81dce57a435b2114c8712)
- **Published:** 2026-04-09
- **Category:** Cars
- **Tags:** #lights #traffic #lines #ever #notice #others #white #aren
- **Canonical:** http://localhost:4321/a/69d81dce57a435b2114c8712

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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._