> > How about something pedestrians could wear/hold that would alert them to an approaching vehicle? Perhaps embedded electronics in clothing or accessories.
>
> That wouldn't work, because then the responsibility for having one lies with the pedestrian, not the driver. It's safer (and cheaper) to have the driver install something on his car which could then potentially warn lots of people around, than it is to have pedestrians have something that warns him or her alone.
>
> - Ciaran.


How about one of those little plastic hypersonic whistles that you can clip to your bumper to scare deer away? Only, it couldn't be hypersonic if we want people to hear it... so how about lowering the pitch just a bit, and distorting the output a bit, so that it ends up sounding like a Ring Wraith from the LoTR movies? That'll get people out of your way in a jiffy...

- Enigma