[mellavora]

> noise pollution levels.

except for that damn backup "beep beep". Yes, I know the arguments for safety, and few of them are based on studies which show safety improvements

esp vs other options, like backup cameras. Or if the beep only signaled if there was an obstruction behind the truck. That would be a great use for computer vision. Someone standing behind the truck (or even just something which might be a person)? Beep. Otherwise, keep quiet. An alarm which is false 10x more than it is true is not an alarm.

[omegabravo]

The beep isn't for the driver. I don't want it to beep after I step out behind it, I want it to beep before.

Despite that, there is an alternative which sounds more like a hiss. The main benefit is that you can identify the direction from your hearing. I have to look in all directions to find where the beep is coming from.

https://www.youtube.com/watch?v=fa28lIGuxq8