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Why Do Reversing Trucks Not Beep Any More?

Tom Scott · explainer · Watch on YouTube

Everyday physics & science demosUX & UI designCivil engineering & construction

What it is

Tom Scott stands by a construction site and explains why reversing vehicles now use a white-noise hiss instead of beeping. The sound is easier to locate directionally and less annoying to neighbours.

Why Hacker News recommends it

Cited whenever backup beepers and noise come up, as a clear explanation of the white-noise alternative.

  • 3 people recommended it
  • 3 different months
  • 1 strong recommendations
  • first 2016, last 2026

What HN commenters said

  1. “Tom Scott has a fascinating video that describes how this is changing”

    Describes how backup beepers are being replaced

    chrisbolt, 2021-01 · Strong recommendation · in “France has passed a law protecting the sounds and smells of the countryside”

  2. “studies show that there are safer (and less annoying) noises that can be utilized”

    Explains safer, less annoying alternatives to reversing beepers

    Scottopherson, 2016-07 · Recommendation · in “Mercedes-Benz shows off the first fully electric heavy urban transport truck”

  3. “It has multiple benefits over the old beeping sound, including being easily able to hear the direction the sound is coming from.”

    White noise reversing sounds have multiple benefits over beeping

    VageGast, 2026-01 · Recommendation · in “STFU”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: white noise alarms, construction safety, sound design, tom scott, noise pollution

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