AP NEWS

Left turns

February 6, 2019
In this Dec. 18, 2018, photo one of the test vehicles from Argo AI, Ford's autonomous vehicle unit, navigates through the strip district near the company offices in Pittsburgh. Even the most optimistic experts say it will be 10 years before self-driving vehicles are everywhere, but others believe it will take decades. The biggest reasons are camera and laser sensors that can’t see through heavy snow or figure out where to go if lane lines are covered. (AP Photo/Keith Srakocic)

Deciding when to turn left in front of oncoming traffic without a green arrow is one of the more difficult tasks for human drivers and one that causes many crashes. Autonomous vehicles have the same trouble.

Waymo CEO John Krafcik said in a recent interview that his company’s vehicles are still encountering occasional problems at intersections.

“I think the things that humans have challenges with, we’re challenged with as well,” he said. “So sometimes unprotected lefts are super challenging for a human, sometimes they’re super challenging for us.”

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