{"componentChunkName":"component---src-templates-blog-post-js","path":"/blog/green-yellow-red-now-engineers-want-a-4th-traffic-signal-light/","result":{"data":{"site":{"siteMetadata":{"title":"No Frills News"}},"contentfulNfnPost":{"postTitle":"Green Yellow Red: Now Engineers Want a 4th Traffic Signal Light","slug":"green-yellow-red-now-engineers-want-a-4th-traffic-signal-light","createdLocal":"2023-02-12 14:30:50.722548","publishDate":"2023-02-12 11:43:00+00:00","feedName":"Autonomous Vehicle News","sourceUrl":{"sourceUrl":"https://www.motorbiscuit.com/green-yellow-red-now-engineers-want-4th-traffic-signal-light/"},"postSummary":{"childMarkdownRemark":{"html":"<p>When Detroit and New York added the yellow caution light in 1920, the traffic signal design became fixed.\nBumper-to-bumper traffic | Timothy Fadek/Bloomberg NewsTraffic engineers want to add a fourth “white” light.\nAutonomous vehicles communicate with the traffic signal, which the white light indicates.\nWill this change what red, yellow, and green traffic lights mean?\nTraffic light at sunrise | Gary Hershorn/GettyOnce more driver-controlled vehicles get in proximity to the signal, the white light would go dark and drivers revert to following the traditional red, yellow, and green lights.</p>"}}}},"pageContext":{"slug":"green-yellow-red-now-engineers-want-a-4th-traffic-signal-light"}}}