“Tesla and other vehicle manufacturers really need to understand how humans interact with different levels of autonomy,” says Costa Samaras, a civil engineer who studies electric and autonomous vehicles at Carnegie Mellon University. Do drivers use the suggestions? How confident are they in them, and how quickly do they notice and accept them?

Which setting do they use for how aggressive lane changes are?

“These types of partially automated features, where there’s a very visible human in the loop, enables them to get data and eventually make their systems better,” says Samaras.
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