alt Hacker News>Sedan hits you, you get hit in the knees and fall on the hood. Brodozer hits you, it strikes your chest/head, pushes you over and drives over you.
You just made that up. Pedestrians are mostly killed by head onto solid object.
Your two most common options are pavement and windshield. Pavement is worse because cars have a fair bit of engineering that goes into preventing head onto windshield. At the end of the day it's mostly a question about getting hit above or below center of mass.
Modern (ie. larger than they were 20yr ago) crossovers and midsize SUVs are doing a lot of heavy lifting in these stats. But the people who want to talk about this problem tend to drive Rav4s and not Chevy 2500s so the latter gets complained about even though the former outsold it 2:1
Relatedly, minivans are kind of bad no matter how you cut them because it's hard to stay true to the form factor and not have pedestrians go straight into windshield in fairly low speed crashes.
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Afair, e.g. Land Rover stopped producing the classic Defender due to more stringent pedestrian protection regulations in the EU. They introduced strict front-end safety requirements for cars and SUVs whereas the US does not. So vehicles designed and sold in European (in numbers) are probably safer for pedestrians because it is tested for and required - but there are exceptions for some US trucks somehow.
> You just made that up. Pedestrians are mostly killed by head onto solid object.
Not to be combative, but I'd also like to see stats on that - that sounds just as made up. I'd expect a lot of pedestrians to strike the hood (about just as likely as windshield) as most pedestrian accidents happen in parking lots, drive-ways, traffic lights and vehicles exiting across a sidewalk (under 25mph).
> Pedestrians are mostly killed by head onto solid object
Several EU car models literally pop up the hood on impact so that the head hits a hood that buckles instead of the engine underneath.
From Wikipedia:
> The hood of most vehicles is usually fabricated from sheet metal, which is a compliant energy absorbing structure which poses a comparatively small threat. Most serious head injuries occur when there is insufficient clearance between the hood and the stiff underlying engine components
> Some models, like the Citroën C6 and Jaguar XK feature a novel pop-up bonnet design, which adds 6.5 cm (2.5", C6) extra clearance over the engine block if the bumper senses a hit. In 2012 and 2015, the Volvo V40 and the Land Rover Discovery Sport have an under-the hood airbag designed to operate if the hood senses a hit
TFA addresses this.
> The issue isn’t mass alone, but also height. Yes, spreading impact over a greater area reduces the force experienced by any given part of your body, but when that surface area rises further and further from the ground, the impact point on your body rises with it. If you’re hit below your center of mass, you’re likely to fall toward the vehicle. If you’re hit at or above that point, you’re likely to be knocked down in front of of the vehicle instead. The latter becomes less survivable due to the poor visibility offered by taller trucks and SUVs.
> “We see a lot of devastating collisions even at lower speeds because the pedestrian gets punted forward,” said Shawn Harrington, whose company, Forensic Rock, conducted crash testing for the report. “Before the driver knows what’s happened, the pedestrian’s head is under the wheel.”