Waymo is testing self-driving cars in Pittsburgh. Here's how it works.
Videos from around the country show Waymo's self-driving cars not stopping for school buses or stopping too late.
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Videos from around the country show Waymo's self-driving cars not stopping for school buses or stopping too late.
The ride-hailing service is a subsidiary of Alphabet Inc., Google's parent company.
Skeptics say CEO Elon Musk has yet to show Tesla's self-driving system can travel safely without human supervision.
Within three or four years, Aurora Innovation and its competitors expect to put thousands of self-driving trucks on America's public freeways. But the image of driverless semis on highways concerns many people, polls show.