So just something that’s been on my mind. At my workplace there’s an automatic road barrier that lifts up and down when vehicles arrive. However, it’s not used for a carpark system when people wave their tickets or something. It just goes up and down when a vehicle shows up.

However, it sometimes goes up for when say a pushcart is being rolled over whereas it wouldn’t for a guy pushing a bin.

So tldr, how does an automatic road barrier decide that yes, a vehicle is coming, and therefore opens up?

  • OtterEnglish
    46•8 months ago

    So a large wooden horse could slip by without detection

    • astraeus
      16•8 months ago

      If the large wooden horse is full of men in metal armor, purely hypothetically speaking, would the loop still not pick up the large wooden horse?

      • wkk
        8•8 months ago

        Technically speaking it would pick up the men in metal armors, not the wooden horse per se.

        But the barrier would lift for the wooden horse full of men in armor indeed.

        • _haha_oh_wow_English
          4•8 months ago

          Depends on how high on their horse they are: They might be too far away to trigger the sensor.