Watch Cruise’s self-driving cars perform 1,400 unprotected left turns in 24 hours

Left hand turns are tough, and unprotected lefts — no traffic light or stop sign to guide the way — are even harder. This holds true for both human and robot drivers; even the most skilled self-driving car struggles to make a seamless left turn.

Cruise, the self-driving division of General Motors, knows this to be true. In a video just published, the company calls unprotected left turns “one of the most difficult maneuvers” a self-driving car can perform. That’s why the company has focused on perfecting these turns. Cruise’s self-driving cars routinely execute 1,400 unprotected lefts every day in the complex environment of San Francisco, the company says.

“In an unpredictable driving…

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