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How well do cars do in crash tests they're not optimized for?

danluu.com Essays & writing Essays & articles Space & transportation Candidate
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Resurfaced independently across 4 calendar years, with breakout response in 3 of them.

submissions
4
submitters
4
observed span
2020–2024
peak thread · 343 comments
295 pts
latest 20+ return · 2024-11-17
86 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

The article reminds me of a story from a friend that was an engineer at a major water heater company. Modern electric water heaters are already fairly efficient, but every model gets tested by the government to be given an efficiency rating. The test consists of replacing the anode with a rod that has a series of temperature probes to measure the water at different levels in the water heater. Since water would form layers of different temperatures you needed…

wscott·295-point thread·

> Unfortunately, if we get into a car accident, we don't get to ask the driver of the vehicle we're colliding with to change their location, angle of impact, and speed, in order for the collision to comply with an IIHS, NHTSA, or *NCAP, test protocol. I'm smitten with the stupid idea of teaching your self-driving car that when a crash can't be avoided it should attempt to make the crash as close as possible to the nearest crash test…

I'm surprised the "Actual vehicle tested may be different" section didn't mention the alleged fraud Ford engaged in with the 2015 F150 where they welded in extra crash safety bars only on specific configurations out of the factory... that just happened to be the exact configurations that were being sent to the IIHS for crash testing.

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
3

100+ points or 50+ comments

Total points
495

reference only — not used in Hall rules or ranking

Total comments
616

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2020-06-30How well do cars do in crash tests they're not optimized for?First breakout · Best threadweinzierl295343
2021-11-11How do cars fare in crash tests they're not specifically optimized for? (2020)ndr111101
2023-07-21How do cars fare in crash tests they're not specifically optimized for?ntnbr30
2024-11-17How do cars do in out-of-sample crash testing? (2020)Latest 20+ point returnsurprisetalk86172