Illustration: Aïda Amer/Axios

A new study from the insurance industry that suggests automated vehicles will stop only about one-third of crashes is a reminder that much of what we hear and read about AVs should be taken with a grain of salt.

The big picture: Human error plays a role in 94% of crashes, according to U.S. government statistics, which is why automation is often held up as a potential life saver.

What they did: The Insurance Institute for Highway Safety, a well-known research organization, studied more than 5,000 crashes, separating them into five categories:

  • Sensing and perceiving errors like driver distraction (24%)
  • Predicting errors like misjudging how fast another vehicle is going (17%)
  • Planning and deciding errors like speeding or driving aggressively (39%)
  • Execution and performance errors like overreaction during a defensive maneuver (23%)
  • Incapacitation like drunken driving or falling asleep at the wheel. (10%)

What they found: IIHS concluded computer-controlled robocars will prevent about 34% of accidents, but may be no better than humans in avoiding the rest, AP reported.

Yes, but: Partners for Automated Vehicle Education, a coalition of AV companies and advocacy groups, took issue with some of the study's assumptions, which it said "raise questions about its conclusions."

Between the lines: IIHS assumed AVs will see better than humans and won't drive drunk — both reasonable assumptions — accounting for 34% of the crashes avoided.

  • The remaining two-thirds might still occur, IIHS said, unless autonomous vehicles are specifically programmed to avoid the other types of errors humans make in predicting, decision-making and execution.
  • But as PAVE wrote in a blog post, that's "like saying that a marble won’t roll very far if it's not round."

My thought bubble: Isn't this what AV developers are trying to do? Designing self-driving cars to be safer than a human is difficult, which is why it's taking so long.

  • Engineers are trying to get it right, but it's possible they'll make mistakes, which would be an entirely different type of potentially avoidable human error.

Go deeper: Why driverless cars could save far fewer lives than expected

Go deeper

Updated 2 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Global: Total confirmed cases as of 3 a.m. ET: 33,362,341 — Total deaths: 1,001,800 — Total recoveries: 23,153,572Map.
  2. U.S.: Total confirmed cases as of 3 a.m. ET: 7,149,073 — Total deaths: 205,069 — Total recoveries: 2,794,608 — Total tests: 102,342,416Map.
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  4. Health: Trump announces plan to distribute 150 million rapid tests —The childless vaccine.
  5. Media: Fauci: Some of what Fox News reports about COVID-19 is "outlandish"
  6. States: Cuomo extends New York moratorium on evictions until 2021.
  7. World: More than 1 million people have now died from coronavirus — India the second country after U.S. to hit 6 million cases.

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