Google: Driverless cars are mastering city streets

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LOS ANGELES (AP) - Google says that cars it is programming to drive themselves have started to master the navigation of city streets and the challenges they bring, from jaywalkers to weaving bicyclists - a critical milestone for any commercially available self-driving car technology.

Despite the progress over the past year, the cars have plenty of learning to do before 2017, when the Silicon Valley tech giant hopes to get “autonomous driving” technology to the public.

None of the traditional automakers has been so bullish. Instead, they have rolled out features incrementally, including technology that brakes and accelerates in stop-and-go traffic, or keeps cars in their lanes.

“I think the Google technology is great stuff. But I just don’t see a quick pathway to the market,” said David Alexander, a senior analyst with Navigant Research who specializes in autonomous vehicles.

His projection is that self-driving cars will not be commercially available until 2025.

Google Inc.’s self-driving cars already can navigate freeways comfortably, albeit with a driver ready to take control. In a new blog post, the project’s leader said test cars now can handle thousands of urban situations that would have stumped them a year or two ago.

“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.

Urmson’s post was the first official update since 2012 on a project that is part of the company’s secretive Google X lab.

In initial iterations, human drivers would be expected to take control if the computer fails. The promise is that, eventually, there would be no need for a driver. Passengers could read, daydream, even sleep - or work - while the car drives.

That day is still years away, cautioned Navigant’s Alexander.

He noted that Google’s retrofitted Lexus RX450H SUVs have a small tower on the roof that uses lasers to map the surrounding area. Automakers want to hide that technology in a car’s existing shape, he said. And even once cars are better than humans at driving, it will still take several years to get the technology from development to large-scale production.

Google has not said how it plans to market the technology. Options include collaborating with major carmakers or giving away the software, as the company did with its Android operating system.

While Google has the balance sheet to invest in making cars, that is unlikely. Certainly not in the 2017 time-frame that Google co-founder Sergey Brin has laid out.

Urmson said in an interview that 2017 is “a pretty great time frame” for people living near Google’s San Francisco Bay Area headquarters to expect to have access to the technology, but in what form remains to be seen.

While Brin is his boss, and he wants to keep the boss happy, Urmson said safety will come first.

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