How Google's Self-Driving Car Works

Google engineers explain the technology behind their self-driving car and show videos of road tests

Google's self-driving car
Photo: Google
Google's self-driving car.
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Once a secret project, Google’s self-driving cars are now out in the open, with the company test-driving them on public roads and, on one occasion, even inviting people to ride inside one of the robot vehicles as it raced around a closed course.

Google’s fleet of robotic Toyota Priuses has now logged more than 190,000 miles (about 300,000 kilometers), driving in city traffic, busy highways, and mountainous roads with only occasional human intervention. The project is still far from becoming commercially viable, but Google has set up a demonstration system on its campus, using driverless golf carts, which points to how the technology could change transportation even in the near future.

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