![Red, yellow, green - that's how we know our traffic lights. US researchers recommend a fourth color](https://cdn.aussiedlerbote.de/content/images/2024/05/17/272985/jpeg/4-3/1200/75/could-a-fourth-traffic-light-be-the-future-of-traffic-management.webp)
Clearly delineated regulations mandate halting at red traffic signals, proceeding when they're green, and cautiously preparing when amber signals are displayed. If American scientists' plans materialize, a new light color, white, may be incorporated - one not affecting all types of cars.
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