[m463]

lol.

that's like harley riders with unmuffled motors "for safety".

On the other hand, I remember being in japan and watching some construction vehicles in tokyo. They were surprisingly quiet. After a while I realized what it was - in the united states all construction vehicles have these annoying "beep-beep-beep" sounds while they're working (for safety).

I wonder if one day they can play those only when someone walks nearby or play in some technologically quieter way.

[ArnoVW]

In France I see (and hear) more and more use of a special type of warning device, "le cri de lynx" that reduces sonic pollution by building sites.

https://m.youtube.com/watch?v=BljL3XO0fyg&pp=0gcJCTIBo7VqN5t...

[VageGast]

It does remind me of a video from Tom Scott about the use of white noise for reversing trucks. It has multiple benefits over the old beeping sound, including being easily able to hear the direction the sound is coming from. https://www.youtube.com/watch?v=fa28lIGuxq8

[lostlogin]

Sadly I don’t speak French and Searching for whatever this is isn’t working.

If it’s noise cancelling it sounds amazing.

Can you further expand?

[tom_]

It's the noise you hear at about the one minute mark when the digger is reversing: https://youtu.be/BljL3XO0fyg?t=59

Actual cri du lynx: https://www.youtube.com/watch?v=KtsdVQWGibQ

[lostlogin]

Oh this is horrible.

We don’t want people run over by reversing vehicles, but also, if I had to listen to that every day, I’d leap in front of them.

[slobotron]

IMO, in person it's much nicer on the ears than the old single-tone beep that they used to have. It's less jarring and easier to locate where the noise is coming from, ye olde beep seemed to come from everywhere at once.

[fc417fc802]

> while they're working (for safety).

Should only be while they're backing up. It signals to anyone around that the vehicle is in reverse. At least the ones I'm familiar with.

[toast0]

> some technologically quieter way.

I'm not going to watch the video linked in sibling comments right now, but "pulsing loud static" is a pretty common alternative to beeping around me; especially in the big citie. Kind of a big shush shush noise: sometimes it sounds a little like hydraulics working which is fine because if you hear those, something big is happening and you should pay attention.

Anyway, the real nice thing is it's loud and attention catching near the source, but it seems to disipate faster than beeps, so you don't really hear it when it's not relevant.