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ScienceQuiet 4d · day 7

Melbourne University study links taller, heavier cars to higher pedestrian death risk

Analysis of over 10,000 Victorian crashes finds each 10cm of extra vehicle height raises pedestrian fatality odds by 11%, with women most affected.

What to know

  • A Melbourne University analysis of 10,376 Victorian crashes (2012–mid 2025) found each 10cm increase in vehicle height raises pedestrian death odds by 11%, and each 100kg of weight raises odds by 6%.
  • Utes carried 1.6 times the pedestrian fatality probability of sedans/hatchbacks, and station wagons 1.2 times; women, but not men, showed a significant risk increase from vehicle height and weight.
  • The findings align with a prior US study showing a 22% higher pedestrian death risk per 10cm of front-end height, amid a broader shift toward SUVs and pick-up trucks in Australia's vehicle fleet.
  • Australian pedestrian deaths have risen over the past five years after a long decline, while in-vehicle passenger fatality rates have stayed roughly stable.

The dispute Whether mocking large-vehicle owners as insecure or narcissistic constitutes unfair body shaming or is legitimate criticism. · positions read across 31 posts and comments

many voices

Large-vehicle owners should be socially pressured, discouraged, or subject to incentives to switch to smaller cars.

  • “We really need to bring in a public campaign of shaming the wankers who choose to buy these yank tanks.”

    Real_RobinGoodfellow · reddit ↗
some voices

Calling large-vehicle buyers insecure or narcissistic is a form of body shaming and unfair.

  • “It really is body shaming. It's taking a physical feature, denigrating it and using it to attach to negative traits to support your position.”

    Marshy462 · reddit ↗
some voices

It is not body shaming — it is legitimate criticism of narcissism and insecurity behind buying oversized vehicles.

  • “It is NOT body shaming, it is highlighting mental insecurity and narcissism with a fictitious presumption.”

    AgUnityDD · reddit ↗
some voices

The mechanism matters technically: both extra weight and height increase force and stopping-distance impacts on pedestrians.

  • “The initial impact is still imparting significantly more force to you before you start to move, then the increased stopping distance also means that the secondary impacts... impart more force onto you as well.”

    FirstDayPlaying · reddit ↗

“significant predictors of death”

Melbourne University researchers, Study authors · ABC Australia ↗ · Sep 16

Melbourne University researchers Study authors

How it unfolded 3 developments, newest first · click a bar or a number to jump articlespostscomments

Peak 10 pieces in two hours at Sep 17, 7 PM; 37 pieces over 7 days (2 articles · 7 posts · 28 comments) Sep 17, 1 PM — 2 pieces · 2 articles — Google News 1, Newswires 1Sep 17, 3 PM — 1 piece · 1 post — Reddit 1Sep 17, 5 PM — 2 pieces · 2 posts — Mastodon 2Sep 17, 7 PM — 10 pieces · 1 post · 9 comments — Reddit 10Sep 17, 9 PM — 7 pieces · 7 comments — Reddit 7Sep 17, 11 PM — quietSep 18, 1 AM — 4 pieces · 4 comments — Reddit 4Sep 18, 3 AM — 3 pieces · 1 post · 2 comments — Reddit 2, Mastodon 1Sep 18, 5 AM — quietSep 18, 7 AM — 3 pieces · 3 comments — Reddit 3Sep 18, 9 AM — quietSep 18, 11 AM — quietSep 18, 1 PM — 1 piece · 1 comment — Reddit 1Sep 18, 3 PM — quietSep 18, 5 PM — 1 piece · 1 comment — Reddit 1Sep 18, 7 PM — 1 piece · 1 post — Mastodon 1Sep 18, 9 PM — quietSep 18, 11 PM — quietSep 19, 1 AM — quietSep 19, 3 AM — quietSep 19, 5 AM — 1 piece · 1 comment — Reddit 1Sep 19, 7 AM — quietSep 19, 9 AM — quietSep 19, 11 AM — quietSep 19, 1 PM — quietSep 19, 3 PM — quietSep 19, 5 PM — quietSep 19, 7 PM — quietSep 19, 9 PM — quietSep 19, 11 PM — quietSep 20, 1 AM — quietSep 20, 3 AM — quietSep 20, 5 AM — quietSep 20, 7 AM — quietSep 20, 9 AM — quietSep 20, 11 AM — quietSep 20, 1 PM — 1 piece · 1 post — Mastodon 1Sep 20, 3 PM — quietSep 20, 5 PM — quietSep 20, 7 PM — quietSep 20, 9 PM — quietSep 20, 11 PM — quietSep 21, 1 AM — quietSep 21, 3 AM — quietSep 21, 5 AM — quietSep 21, 7 AM — quietSep 21, 9 AM — quietSep 21, 11 AM — quietSep 21, 1 PM — quietSep 21, 3 PM — quietSep 21, 5 PM — quietSep 21, 7 PM — quietSep 21, 9 PM — quietSep 21, 11 PM — quietSep 22, 1 AM — quietSep 22, 3 AM — quietSep 22, 5 AM — quietSep 22, 7 AM — quietSep 22, 9 AM — quietSep 22, 11 AM — quietSep 22, 1 PM — quietSep 22, 3 PM — quietSep 22, 5 PM — quietSep 22, 7 PM — quietSep 22, 9 PM — quietSep 22, 11 PM — quietYesterday, 1 AM — quietYesterday, 3 AM — quietYesterday, 5 AM — quietYesterday, 7 AM — quietYesterday, 9 AM — quietYesterday, 11 AM — quietYesterday, 1 PM — quietYesterday, 3 PM — quietYesterday, 5 PM — quietYesterday, 7 PM — quietYesterday, 9 PM — quietYesterday, 11 PM — quietToday, 1 AM — quiet 1–3
Sep 18Sep 19Sep 20Sep 21Sep 22yesterdaynow · 3:49 AM ET
  1. 3

    Reddit thread debates blaming large-vehicle buyers versus "body shaming"

    Commenters split between calling for social pressure or subsidies to shrink the vehicle fleet and objecting that mocking large-vehicle owners as insecure is itself a form of body shaming.

    “We really need to bring in a public campaign of shaming the wankers who choose to buy these yank tanks.”
    — Real_RobinGoodfellow, Reddit commenter · source
    • cdarwin@c.im

      For every 10cm of vehicle height, the odds of a pedestrian death rise by 11 per cent. https://www. abc.net.au/news/2026-09-18/big -cars-linked-to-pedestrian-deaths/107053810

      cdarwin@c.imMastodon3d ago28▲view on Mastodon ↗
    2 more of the top 3 · 31 posts in this stretch
    • I'm surprised it took this long for a study like this to come out...it was kind of common sense a long time ago...with height of cars being designed to allow a pedestrian that is getting hit to fall onto the hood rather than getting whipped under the car. You'd likely still get seriously hurt, but statistically less likely to kill you because it'd…

      PanicSwtchdr/science6d agoview on r/science ↗
    • forteller@tutoteket.no

      If you are outside and someone driving a car don't see you, has bad reaction time, swerves to avoid something else, is distracted, or crashes into you for any other reason, these are your chances of dying: - Every additional 100 kg of vehicle weight increased pedestrian fatality odds by 6%. - Every additional 10 cm of vehicle height increased…

      forteller@tutoteket.noMastodon5d ago1▲view on Mastodon ↗
    all of them →
  2. 2

    Story circulates via Google News, Reddit and Mastodon reposts

    The ABC report was picked up and shared across Reddit and Mastodon within hours, with one Mastodon post tagging it "# Shocker".

  3. 1

    Report ties findings to Australia's shift toward SUVs and pick-up trucks

    The coverage notes sedan and hatchback sales have declined since SUVs overtook them in 2017, mirroring a US trend, and links this shift to Australia's pedestrian death rate rising over the past five years after years of decline; the analysis also compares the new Australian figures to a prior US study finding a 22% higher pedestrian death risk per 10cm of front-end height.

    “For every 10cm of vehicle height, the odds of a pedestrian death rise by 11 per cent.”
    — ABC News, Reporting on the study · source
  4. background

    Melbourne University releases 13-year crash study on vehicle size and pedestrian deaths — Researchers analysed 10,376 Victorian crashes from 2012 to mid-2025 and found every 10cm increase in vehicle height raised pedestrian death odds by 11%, and every 100kg of extra weight raised odds by 6%; utes carried 1.6 times the fatality probability of sedans/hatchbacks and station wagons 1.2 times.

Also covered reported alongside — the timeline has no entry for these yet

  1. first by abc.net.au, 6d ago · also ABC Australia

What people are saying 20 voices from 2 sites · best of 31 · verbatim

Still unanswered
  • Would subsidies for alternatives like e-bikes meaningfully shift people away from oversized vehicles?