Technology

Google Tries to Jump-Start the Driverless Car, But Big Questions Loom

80beatsBy Veronique GreenwoodMay 23, 2011 8:17 PM

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What’s the News: Google’s self-driving cars have been generating buzz lately, with the news that the company has been lobbying Nevada to allow the autonomous vehicles to be operated on public roads. But it remains to be seen whether hordes of self-driving cars really going to work in the real world.How the Heck: Google’s driverless cars are equipped with video cameras, GPS units, radar sensors, and a laser range finder. They learn a route as a human motorist drives along it, and on subsequent trips the cars take over, using their sensors to react to changing conditions, like when pedestrians are in a crosswalk. Google’s vehicles have two people aboard during tests, one observing from the driver’s seat and one keeping an eye on the car’s equipment. Not So Fast:

"There are things that right now are a challenge for us," Urmson says. "For instance, if most of the world stayed the same but the lanes are shifted—so the physical road didn't move but, for whatever reason, the department of transportation decided we should drive a half lane to the left—that would probably confuse the car today."

  • And while the prospect of fewer traffic fatalities is always welcome, the presence of even the most careful and well-designed driverless cars on the road raises some thorny ethical questions. An MIT engineer hits the nail on the head when he asks whether people are more comfortable with human failures than those of machines when it comes to deaths (via Scientific American): "Suppose 10 human-generated fatalities are replaced with five robot-generated fatalities, is that an ethical trade that society wants to make?"

What’s the Context:

The Future Holds: As simple as the math sounds---fewer deaths is better, even if they’re the fault of computers---it’s hard to see society embracing that particular trolley problem when it comes to personal vehicles. But perhaps some aspects of Google's automation will eventually make their way into consumer products. Some kinds of vehicles, especially planes, have many automatic features that contribute to safety already (though, as you'll see if you click through, the same problems with machine versus human failures arise there too). And BMW is already using laser sensors to alert drivers to pedestrians in blind intersections.

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