With the 745-Mile Solid-State Battery, Toyota Just Became a Force to Reckon With

Re:With the 745-Mile Solid-State Battery, Toyota Just Became... by wilg on Sunday July 23, 2023 @04:38PM (#36839582)

IIRC average car weight has been stable for ~20 years, not increasing, and also pedestrian deaths have been decreasing over the same period, even as people are buying big weirdo trucks and whatnot. Also, I'd expect increased prevalence of active safety features is more important than the weight of the vehicle for pedestrian safety.

[ Parent | on HN ]

Re:With the 745-Mile Solid-State Battery, Toyota Just Became... by cycomanic on Sunday July 23, 2023 @04:51PM (#36839698)

I think neither of these statements are true. Car weight has increased (https://www.capitalone.com/cars/learn/finding-the-right-car/...) as well as pedestrian deaths which have increased 77% in the last 10 odd years (https://www.nbcnews.com/data-graphics/map-pedestrian-fatalit...)

[ Parent | on HN ]

Re:With the 745-Mile Solid-State Battery, Toyota Just Became... by wilg on Sunday July 23, 2023 @11:40PM (#36842870)

I suppose you are somewhat right, it's a bit muddier than I remembered and I guess I completely mixed up the pedestrian statistics.

In this source, the increase in car weight seems quite minor over the last 10 years:

https://www.epa.gov/automotive-trends/highlights-automotive-... (fig ES-3)

https://www.statista.com/statistics/660493/us-light-duty-veh...

Your link does not support your claim of a 77% increase, but this better source pegs it at 80%, so I suppose that's about right: https://www.iihs.org/topics/fatality-statistics/detail/pedes...

That said, the rate hasn't gone up if you look at a 30-year timeframe, but it's a worrying trend nonetheless. It's a bit confusing though because I think you'd want to look at this per-capita. The absolute numbers show a 10-year upward trend, and the per-capita numbers are only split out by age group and show that same 10-year upward trend except it hasn't gone up at all for people under 20, which seems surprising.

But I remain confused because the 10-year weight increase is very small, less than 10% or so, so it is not clear to me that increasing vehicle weight is the most important factor. IIHS mentions road design and front-end design, but not weight as key factors.

[ Parent | on HN ]