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Waymo Drivers Are Way Safer (10x) Than Humans

Blog Post | Accidents, Injuries & Poisonings

Waymo Drivers Are Way Safer (10x) Than Humans

Waymo is on an exponential learning curve, with every mile driven adding to its knowledge base.

Summary: Self-driving cars are revolutionizing road safety. Swiss Re’s analysis of 25.3 million autonomous miles driven by Waymo highlights a dramatic improvement, with a massive reduction in property damage claims and an even bigger reduction in bodily injury claims compared to human drivers. By leveraging Wright’s Law, Waymo’s learning curve enhances safety and paves the way for scalable technological growth in autonomous transportation.


A key barrier to trusting a self-driving car is the cost of insurance. Since insurance companies risk large financial losses in the event of an accident, premium rates tell you how safe something is.

Swiss Re, one of the world’s leading reinsurers, analyzed liability claims related to collisions from 25.3 million fully autonomous miles driven by Waymo. They found that the Waymo driver demonstrated better safety performance than human-driven vehicles, with an 88 percent reduction in property damage claims and a 92 percent reduction in bodily injury claims.

The growth in autonomous driving safety can be measured as the inverse of the decrease in the number of claims. From this perspective, Waymo drivers are 10.4 times safer – 8.33 times safer in terms of property damage, and 12.5 times safer in terms of bodily injury. Since 2009, their safety factor has grown at a compound annual rate of 16.9 percent. At this rate, safety doubles roughly every five years.

Waymo began in 2009 as the Google Self-Driving Car Project, launching its first prototype—a modified Toyota Prius. In 2015, it debuted the Firefly, the first vehicle capable of fully autonomous public road rides. By 2017, Waymo was operating an autonomous ride-hailing service in Phoenix, adding minivans in 2018. It expanded to San Francisco in 2021 and Los Angeles in 2023, transitioning to an all-electric fleet featuring the Jaguar I-PACE. Future expansion plans include Austin, Atlanta, Miami, and Tokyo.

Lots of people have heard of Moore’s Law, but it’s Wright’s Law that explains innovation. While Moore’s Law explains technological progress as a function of time, Wright’s Law emphasizes experience, capturing the idea that learning happens by doing. Every time you make another unit of a product, it is an opportunity to learn something.

Waymo is on an exponential learning curve, with every mile driven adding to its knowledge base. It’s been observed across various industries that every doubling of output corresponds to a 20–30 percent reduction in unit costs. This sets up a virtuous cycle of wealth creation via knowledge discovery and sharing. This cycle—“making more, learning more, lowering prices, selling more, and making more”—has driven some of history’s greatest technological advancements.

As George Gilder observes, “Wealth is knowledge, and growth is learning.” Waymo exemplifies this principle, transforming insights from autonomous driving into safer roads and a scalable, innovative future. Now is the time to create and embrace learning curves. Waymo is leading the way—one mile at a time.

This article was published at Gale Winds on 1/7/2025.

Yale Environment 360 | Accidents, Injuries & Poisonings

Mountain Lions Are Keeping Deer Off the Road, Study Finds

“Mountain lions in Washington state may be cutting down on traffic accidents by scaring deer away from roads, new research finds.

Deer often avoid open spaces, including roads, when predators are nearby. But while it has long been suggested that predators might tamp down on traffic collisions with prey, that has never been demonstrated in areas where big predators are well established, researchers say…

Researchers found that where mountain lions were active, deer avoided roads. Overall, deer in those areas were 15 percent less likely to be found near roads, which led to a 67 percent drop in the odds of a traffic accident involving deer. The findings were published in the journal Current Biology.”

From Yale Environment 360.

International Civil Aviation Organization | Accidents, Injuries & Poisonings

Global Airline Safety Improved as Accident Rates Fell in 2025

“One of the clearest indicators of progress is the global accident rate, which measures how many accidents occur per one million flight departures.

In 2025, the global accident rate improved from 2.6 to 2.2 accidents per million departures, a reduction of nearly 13 per cent. Put simply, airlines conducted more flights while experiencing fewer accidents overall.

The strongest safety improvement in 2025 occurred in the area of fatal accidents, in which at least one person loses their life.

The number of fatal accidents fell from 10 in 2024 to 4 in 2025, while the fatal accident rate declined by 60 per cent, from 0.27 to 0.11 fatal accidents per million departures.”

From International Civil Aviation Organization.

Insurance Institute for Highway Safety | Accidents, Injuries & Poisonings

Waymo’s Driverless Cars Crash Less Often Than People

“Waymo’s driverless cars are involved in fewer crashes than human drivers, but the federal system for monitoring automated vehicles needs improvement, a new study from the Insurance Institute for Highway Safety shows.

Per vehicle mile traveled (VMT), Waymo’s driverless vehicles deployed in San Francisco, Phoenix, Los Angeles and Austin were involved in 68% fewer crashes than human drivers, researchers found. The sample was restricted to crashes that a person would typically report to the police.”

From the study: “Overall, 22% of L4 crash involvements were deemed police-reportable or maybe police-reportable, and two thirds of these occurred in driverless operation. L4 vehicles were unlikely to be the striking vehicle or primary contributor to crashes. Waymo L4 vehicles in driverless operation had police-reportable crash involvement rates 68% lower than human drivers in the same areas and years. Waymo’s rate of rear-ending another vehicle was 91% lower; its vehicles’ rate of being rear-ended was 40% lower. These results apply only to the L4 vehicles in driverless operation that were studied.”

From Insurance Institute for Highway Safety.

World Health Organization | Accidents, Injuries & Poisonings

Road Deaths Fall by 21 Percent Globally

“Despite the addition of more than one billion motor-vehicles to the world’s roads, the global rate of road traffic deaths declined by 21% between 2011 and 2025, according to new data released by the World Health Organization (WHO).

The world has experienced profound changes in road traffic during this time with the emergence of new modes of transport and a sharp rise in motorcycle use. Despite this progress, however, road traffic crashes still claimed 1.16 million people's lives in 2025. Road traffic injuries remain the leading cause of death among children and youth aged 5–29 years.”

From World Health Organization.