Google’s self-driving cars hit the roads

Google says its self-driving prototype cars have taken to streets in the Silicon Valley where it has its headquarters.

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It comes after Google’s internal testing of the bubble-shaped vehicle over the past year and more extensive experience with technology adapted for existing cars.

“We want to understand what it really means to have self-driving vehicles in the world – both how people in the community perceive and interact with them, and what the practical realities are for us in operating and maintaining them,” Google said in a released statement on Thursday.

Prototype cars built from the ground up to get around safely without human drivers join Google’s fleet of Lexus vehicles augmented with sensors and other computing gadgetry to manage autonomously on roads.

The prototypes will have “safety drivers” who can take over using manual controls if needed, according to Google.

“We’ve had 20-plus Lexus vehicles driving on Mountain View city streets for the last few years, but the arrival of our new self-driving vehicle prototypes marks the start of a new phase of our project,” Google said.

The Google car uses the same technology as its fleet of Lexus 4WDs which has logged some 1.6 million kilometres.

In Google’s home town of Mountain View, speeds will be limited to 40km/h “and during this next phase of our project we’ll have safety drivers aboard with a removable steering wheel, accelerator pedal, and brake pedal that allow them to take over driving if needed,” according to the head of the project.

Google has defended the safety record of its self-driving cars, saying that they were not at fault in any of the dozen or so accidents in which they’ve been involved.

Most of the collisions involved self-driving cars being hit in the rear by vehicles driven by people, according to the internet titan.