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Sounds and blind pedestrians. Hope not in Europe

FYI http://detnews.com/article/20101217/AUTO01/12170344/1148/

IOW EV:s need a "Beep! Beep! Beep!" whenever they are driven slowly. That's like 1600 laws where people driving cars needed a person running in front of the vehicle with red flag.

I hope European version doesn't have that noisemaker. If it does and I buy it, first thing I will do is use wire cutters to disable that system.

I wonder what that means to Roadsters already sold. Or MiEV:s or any other car with silent engines.

More to the point, the net present value is finite. Suppose we use a social discount rate of 5%, and each year of life is deemed to be worth $100,000. If the current life expectancy is, say, 80 years for a 30-year-old male (it's actually 77, but this makes the math easier), then the NPV of the loss is $1.826 million. Killing someone with an otherwise infinite lifespan would only have an NPV of $2.0 million ($100,000/5%). And, as Brian H points out, even if death-by-old-age were eliminated, accidental death and suicide would cap the expected lifespan.

The biggest difference comes if you hit "old" people. Today, an 80-year-old male has only another 8 years of expected life, so at $100k/year discounted, that's $646k. With infinite lifespans, the "old" guy is still worth about $2 million.

Anyway, this is waaaay off topic.

lol I can't believe you got into that

I think someone some time ago did a "de facto" study of how much society is prepared to spend to prevent each statistically expected death (traffic, disease, etc.). It turns out to be around that figure, $1-2 million.

So that's what you're worth on the hoof, or in the casket.

Actually, Brian, horrifyingly, the amount society is prepared to spend to prevent each statistically expected death *depends on the source of the death*.

Society apparently values the life of people in airplanes way, way higher (will spend vast amounts to stop plane crashes) than the life of people breathing smog (will spend relatively little).

The numbers range from $100,000 to $100 million last I checked. So society does not, in fact, have a consistent view of the value of a human life. It's different depending on the cause of death. Well, nobody ever said humans were rational....

Quick poll: How do you like this sound?

"Acoustic Innovation: e-sound by Audi"
http://youtu.be/HoEDLvQZg5I

I'd rather have silence. Currently I have a V8 Burble (which I love and will miss). The pedestrians striding out in front of me indicate that even with that noise they don't look, so you may as well have silence.

Uh, no. I would rather run over old ladies in a parking lot than drive a car with that creepy Tron noise.

In the day of iPods/iPhones, people aren't hearing trains blowing their air horns while they stroll the tracks. Lower noise pollution as we lower air pollution with the Model S, I say!

What is the 'beep beep' listed after 'horn' on the options page? The dreaded EV alert sound??

Nope, just means it has a standard horn that goes, "beep beep"

Anyone ever heard any synthetic sounds from the Model-S? It seemed then when #1 was delivered there was nothing to hear, but then he was going forward not backing up. Another thing to discover with first test drives! Please share what you observe.

If you hear sounds in your Model S, check under the floor mat for crickets... ;)

pilot;
The proposed imposed artificial auto-noise is not just back-up warning, it's forward motion (all all speeds?) too. >:(

BYT;
He's talking about the pedestrian "warning" noise requirements which are being pushed. >:(

I know, I was being silly. Ultimately however, TM will do what the have to do to make the car street legal in each market. It up to each of us to get pititions out against these, otherwise we don't have much to complain about. I don't see the Model S in California with strange noises emitting from them.

IMHO. If noise is required for pedestrian situations I would like the sound of Star Wars Lightsabers. (and the option of silent mode)

I'd rather a pod racer noise over a lightsaber :P

I'm thinking "Jaws" theme music.

All good suggestions :o)

The sound of an oncoming cattle stampede?

Cavalry charge complete with bugle?

When stopped at lights, some low bass noise would be good. Those do not annoy non-blind people like the backup warning sounds but are audible enough that blind ones do hear it. Or you could use something outerworldly like this http://www.youtube.com/watch?v=e3fqE01YYWs

Now that "bicyclist Chris Bucchere allegedly ran a red traffic light and plowed into 71-year-old Sutchi Hui" [Foxnews] in San Francisco, killing him, I think a little bicycle tinkle bell might be the modern, above sea level equivalent of the Jaws theme.

The sound in psycho ... the sound of the car of porky ...

Scare them good so they don't get under your car ...

Bass noise is non-directional, unless your ears are as far apart as an elephant's.

Actually, electronically generated tones or sounds of any/all kinds seem to be very hard to locate. The uniform waveforms don't have enough information (overtones, variation) to distinguish one peak from the next, so the brain can't do its normal wiggle-matching trick to determine which ear hear a particular pulse first. Even cats have a hard time finding a beeping mobile phone! Recorded natural (messy) sounds are best.

Edit: which ear hear heard

The Love Bug theme music! ;)

typo: reversed the double r's:
Ferrari

/!-p

Verbal message: "Keep your blood off my bumper!"


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