>The utility of having a backup beeper or any noise making device on that site is thus zero.
This strikes me as an odd take, maybe from someone who has never worked on a construction site.
Our auditory sense is more than just a binary “present/not present” detection. We can sense distance and direction. Just because there is a backup beeper somewhere on site does not mean there is no value to any other auditory signal.
Think about when you’re in a congested city. There’s probably a lot of ambient car noise, including horns, in the background. That doesn’t mean you’re unable to react to a honking car in your immediate vicinity.
This strikes me as an odd take, maybe from someone who has never worked on a construction site.
Our auditory sense is more than just a binary “present/not present” detection. We can sense distance and direction. Just because there is a backup beeper somewhere on site does not mean there is no value to any other auditory signal.
Think about when you’re in a congested city. There’s probably a lot of ambient car noise, including horns, in the background. That doesn’t mean you’re unable to react to a honking car in your immediate vicinity.