• Crisps@lemmy.world
    link
    fedilink
    arrow-up
    10
    ·
    10 months ago

    Because car speedometers are not calibrated by law, and can be off a few percent. Changes in temperature can change tire radius as well.

    After all that you then get into court proceeding of proving speed gun calibration has to be perfect.

    • lad@programming.dev
      link
      fedilink
      arrow-up
      1
      arrow-down
      2
      ·
      10 months ago

      And again, you don’t need to go exactly at the [increased] limit, you can go below it and allow for speedometer being not exactly correct