Waymo Gets Scientific: “Not All Miles Are Equal”

This is self-driving car news, not a home energy story, but here's the gist. Waymo, the robotaxi company owned by Google's parent Alphabet, published new research arguing that safety comparisons between self-driving cars and human drivers need to account for when and where the driving happens. A late-night drive downtown carries very different risk than a Tuesday morning highway commute, and lumping them into one national average hides that.

The research, done with outside academics and accepted by a peer-reviewed journal, found human crash rates vary enormously by city and road type, and spike sharply between midnight and 4 a.m., especially on weekends, largely due to fatigue and impaired driving. Waymo's robotaxis do a disproportionate share of their driving during those riskier overnight hours, since that's when people need rides most. Despite that, the company says its vehicles had lower crash rates than human drivers across every time period studied, with over half of the crashes it avoided, compared with matched human driving patterns, happening in that overnight window.

None of this touches home energy upgrades or rebates. It's relevant mainly if you're curious about the safety case for robotaxis or ride-hailing services expanding into more cities. There's no cost, program, or deadline here that affects your house.