[mschuster91]

> Bicycles don't need it, do they?

The traffic fatalities of bicyclists in cities would like a word with you...

[benhurmarcel]

And yet if I permanently had a siren on my bicycle you’d think I’d be an asshole.

[henearkr]

I believe the solution is not loud noises.

There are plenty of other options.

[ryukafalz]

Most importantly, slowing down cars in residential or dense areas. The slower vehicle traffic is moving, the less likely that a collision will be fatal. (By a lot!)