Google has been working on the technology so cars can drive themselves. They could be available within the next 10 years.

The self driving cars from Google are already travelling on freeways problem free and the driver is there in case they need to take over the steering wheel. They are able to handle more and more situations you would come across driving through city streets. These were problems a few years ago but now almost solved.

“We’re growing more optimistic that we’re heading toward an achievable goal – a vehicle that operates fully without human intervention,” project director Chris Urmson wrote. The benefits would include fewer accidents, since in principle machines can drive more safely than people.

The cars are not perfect and still need human help when it comes to certain things like stop signs or when other drivers signal you to go around them or merge into a lane of traffic.

To date, Google’s cars have gone about 700,000 miles (1,126,000 kilometers) in self-driving mode, the vast majority on freeways, the company said.