That's very clever - I like it. But it probably wouldn't gain traction in congress because it requires "opting in". Also it becomes complicated to make the regenerated signal be directional.
Peri -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ed Blackmond Sent: 02 July, 2013 8:58 AM To: Electric Vehicle Discussion List Subject: Re: [EVDL] EVLN: 'Noisy EV' campaign gets backing from the blind (video) How about broadcasting a signal at a frequency outside the audible range. Then sell a device that can pick it up. Legislation could require all smart phones, ipods and such to pick it up. If the noise signal was required for all vehicles, then people wearing ear phones, whether blind or not would get a warning regardless of the type of vehicle. Ed On Tue, 2 Jul 2013, Peri Hartman wrote: > I think we can make more progress by lobbying for an appropriate sound > rather than trying to fight it altogether. > > Personally, I'd like EVS to be as quiet as possible. I can envision a > future where an intersection will be the quietest point on the road - no > engines drumming, no tire noise, just a slight whrr when the light turns > green. Contrast that to what it is now, with loud exhausts and heavy > vehicles trying to accelerate. Not peaceful, huh?> > > Now imagine the same intersection with EVs equipped with noisemakers. If > they sound anything like backup alerts on trucks, it doesn't take much to > hear the cacophony of racket. Probably worse than the ICE noise we have > now. > > So, I will by proposing something which could turn into a national > automotive vehicle alert requirement: > 1. unique from other road noises (so the blind can recognize it), > 2. no louder than necessary to hear from 5' away and < 30db. > 3. nonaggravating to hear; for example a softly pulsing pink noise. > > Peri Hartman > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf > Of Lee Hart > Sent: 02 July, 2013 7:49 AM > To: Electric Vehicle Discussion List > Subject: Re: [EVDL] EVLN: 'Noisy EV' campaign gets backing from the blind > (video) > > Chris Tromley wrote: > > I continue to wonder why EVs are singled out on this issue. There are > > plenty of luxury vehicles that are quieter than some EVs. > > Because there are groups with an agenda, who stretch whatever > circumstances come along to support their cause, whether the fact > justify it or not. :-/ > > _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA) _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
