Waymo seeks to calm doubts about driverless cars with data trove

Autonomous vehicle developers haveso faroperated without shared industry standards for safety and with minimal oversight from state and federal governments. Waymo, saying that it is seeking to revive aconversation around these issues, on Friday released a trove of safety data for its fleet of robo-taxis in Arizona. The voluntary disclosure comes less than a month after Waymo announced that it would begin offering fully driverless service to customers in Arizona and days before an election that could usher in a much tougher regulatory regime.

File photo: A Waymo self-driving car pulls into a parking lot at the Google-owned company's headquarters in Mountain View, California. (AFP)
File photo: A Waymo self-driving car pulls into a parking lot at the Google-owned company's headquarters in Mountain View, California.

“It’s really just going to be a question for us of how strong some of the opposition will be to this technology, versus how enabling the legislative or regulatory approaches might be," said George Ivanov, Waymo’s head of international policy and government affairs, during a conference call with reporters.

The safety report covers 6.1 million miles of automated driving in 2019 and 2020, including 65,000 miles without asafety driverat the wheel. The total mileage, Waymo said,represents more than 500 yearsbehind the wheel for the average U.S. driver. It’s the first time that Alphabet Inc.’s self-driving car unit has made such information public. Waymo also releaseda 30-page document describing its methodology for assessing the safety of its vehicles.

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When Waymo announced its fully driverless service in Arizona earlier this month, Tesla Chief Executive Officer Elon Musk paid the rival a back-handed compliment on Twitter, calling Waymo a “highly specialized solution." Tesla, which some consider Waymo’s primary rival in automated driving technology, was developing a “general solution" that was “capable of zero intervention drives," he wrote. Waymo, in an uncharacteristic move, replied to Musk’s tweet with a photo of the steering wheels in its robo-taxis, which are labeled with the warning: “Please keep your hands off the wheel. The Waymo Driver is in control at all times."

Also Read : Autonomous cars are old school because self-driving trucks may be (almost) ready

“We’re two entirely different businesses, building two entirely different technologies," Nick Webb, Waymo’s director of systems engineering, said of Tesla on the conference call. While Tesla, he noted, needs drivers at the wheel paying attention, Waymo is building vehicles that allow passengers to ride in the back seat while the front is empty.

Waymo reported18 “contact events" involving its fleet overthespan of the safety report, only one of which involved a fully driverless vehicle. In an additional 29 instances, Waymo concluded that there would have been a collision had a safety driver not intervened—using simulatorsto play out these “what if" scenarios. All 47 incidents involved errors or rule violations by other road users, according to Matthew Schwall,Waymo’shead of field safety. None was severe enough to be likely to cause critical injuries, the company said, though airbags were deployed in either the Waymo minivan or another vehicle on three occasions.

FILE PHOTO: A Waymo self-driving vehicle (REUTERS)
FILE PHOTO: A Waymo self-driving vehicle (REUTERS)

Although the 29 simulated incidents all involved aberrant behavior from other road users—including missed stop signs and failures to yield the right of way—Waymo’s safety drivers performed better in those momentsthan its robots at anticipating danger and preventing collisions. Waymo, said Schwall, looks carefully at such events and uses them to refine its driving software. The companycautioned against comparing its recordwith accident rates in the general population, both because its reportincludes minor accidents of the kind that rarely get reported in everyday life and because all of its6.1 million mileswere logged on a selectset of suburban Phoenixroads with speed limits of 45 miles per hour or less.

Also Read : Waymo adds Daimler Trucks to roster of driverless partnerships

In a polltaken earlier this year and commissioned by the advocacy group Partners for Automated Vehicle Education, nearly half of respondents said they would never get into a self-driving taxi. In March 2018, a vehicle in Uber’s self-driving car unit struck and killed a pedestrian in Tempe, Arizona, leading the state to shut down the company’s testing program there. The incident created an implicit standard of zero fatalities for AV developers in the state and raised thorny legal and ethical questions about liability when humans and robots share driving responsibilities. Earlier this year, the Uber car’s safety driver was charged with negligent homicide.

Federal regulators have so far taken a hands-off approach to automated vehicle development. While California requires that autonomous vehicle developers report the total miles and the number of interventions by safety drivers for test cars in the state, there is no federal mandate for safety reporting. In its latest guidance, released in September 2017, the National Highway Traffic Safety Administration, under Secretary of Transportation Elaine Chao, put forward a “non-regulatory approach" that left the automotive industry to design its own best practices for testing and deployment.

In the absence of strong regulation, Waymo has taken a relatively cautious approach, limiting its ride-hailing vehicles to 100 square miles in suburban Phoenix and pulling safety drivers only after tens of millions of miles of testing. Tesla has been more aggressive, releasing increasingly ambitious versions of its advanced driver-assistance systems to the general public. Earlier this month, it began rolling out a beta version of what it calls “Full Self-Driving" to select customers. Videos of rattled Tesla drivers finding flaws in the system soon proliferatedon social media. The software’s terms of servicerequiresdrivers to remain preparedto takecontrol of their cars, and leaves them liable for collisions.

First Published Date: 01 Nov 2020, 10:15 AM IST
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