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Lotus, the blind, and legislation?

18 messages,  Last post on Oct 05, 2008 at 1:13 PM

You are in the Automotive News & Views Forum. Your Hosts are steve_ & claires

What is this discussion about? Toyota, GMC, Ford, Legislation


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#6 of 18
Re: Please, [boaz47] by bwilson4web
Oct 03, 2008 (4:35 pm)
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Replying to: boaz47 (Oct 03, 2008 3:23 pm)

Tire noise is the primary noise source at low speeds even for ordinary vehicles. This makes sense because tire resistance is the primary drag at these speeds too.
 
The blind seem especially afraid about a hybrid sitting, stationary and silent. This consistently comes through every claim.
 
Bob Wilson
#7 of 18
Re: Lotus, the blind, and legislation? [steve_] by bwilson4web
Oct 03, 2008 (4:44 pm)
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Replying to: steve_ (Oct 03, 2008 1:38 pm)

My apologies. I didn't see your note until reviewing this thread. If there is someway to relocate the thread to the right group, fine by me.
 
Bob Wilson
#8 of 18
Re: Please, [bwilson4web] by boaz47
Oct 04, 2008 (8:09 am)
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Replying to: bwilson4web (Oct 03, 2008 4:35 pm)

It is the assigned task of all vehicle drivers in the US to avoid blind pedestrians. One of the reasons for the white cane laws is so that the drivers realize the pedestrian can't see them and take care. So the stopped EV or Hybrid is not a problem unless it is stopped across the crosswalk and a blind person doesn't feel it with their cane. If they have a guide dog that is not a problem at all. This whole issue is an unfounded fear over an issue that doesn't exist. Retirement communities have been using EVs for many years and they may have more vision impaired residents than any other number of communities. There have been no wholesale running down of blind people in those communities nor do their EVs have to sound like a F-1 at the cross walks.
#9 of 18
Re: Please, [boaz47] by steve_ HOST
Oct 04, 2008 (8:59 am)
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Replying to: boaz47 (Oct 04, 2008 8:09 am)

There's always unintended consequences with new stuff, or new applications for old stuff.
 
Around here they put those plastic bump tiles (tactile mats or truncated domes) down at the curb cuts so the blind could tell they were at the street. They melted in the summer heat here in Boise (frequent summer days over 100°F). So they switched to the metal ones. Much more durable but the seeing eye dogs can't tolerate the hot bumps and avoid them. And they wind up being a tripping hazard for everyone.
 
Bob, we'll probably move this one to Hybrids and link it back here.
#10 of 18
Re: Please, [steve_] by bwilson4web
Oct 04, 2008 (10:50 am)
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Replying to: steve_ (Oct 04, 2008 8:59 am)

Thanks Steve,
 
When I started tracking this issue, I looked for 'habis corpus,' where is the body? There aren't any after 5 years of traffic data. Neither us nor the NHTSA can find any statistics that support the claims of the blind. But the blind have made claims.
 
The blind have used a series of anecdotal stories; (1) 8 year old boy turns into a Prius; (2) circled in a parking lot; and (3) foot run-over in parking lot by backing up Prius. Except for the backing over foot incident, a real problem with rear vision in all vehicles, the others had nothing to do with sound or injury. We have had the Prius rolling around since 2001 and this is all they can find. There are no accident statistics that support their claims.
 
The blind have commissioned various 'experiments' only the results have no consistency. This remains a problem with all such experimental efforts. You can always design an experiment to show something you want, which is the risk.
 
Bob Wilson
#11 of 18
Re: Please, [bwilson4web] by steve_ HOST
Oct 04, 2008 (12:48 pm)
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Replying to: bwilson4web (Oct 04, 2008 10:50 am)

We had a chat with an auto industry exec here once, who I won't embarrass by naming (translation - I forgot who it was ); anyway the exec was testing a prototype hybrid electric and someone asked if the exec was cruising parking lots creeping up on people and the exec admitted that was a fun trick.
 
I always relied on tire and general car noise when I did a lot of biking back in the 70's, and could hear a car approaching behind me a long way away, but I could see where a clip-clop or other noise would be a beneficial addition to an electric car in slow moving situations, like at intersections or in parking lots (beneficial to pedestrians that is).
#12 of 18
Re: Please, [steve_] by boaz47
Oct 04, 2008 (1:13 pm)
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Replying to: steve_ (Oct 04, 2008 12:48 pm)

"but I could see where a clip-clop or other noise would be a beneficial addition to an electric car in slow moving situations, like at intersections or in parking lots (beneficial to pedestrians that is). "
 
I sat back and thought about this after I read it. What I pictured was what life in a city would be like with several million vehicles driving down the street with a clip clop sound coming from each one. Imagine a back up beeper on every car in LA driving down the street. Or maybe a voice saying..."woops watch out here comes a car.." over and over again. Even a ching ching like bell would drive us nuts if it were magnified 300,000 times in a small City. We have laws in some cities where you are not allowed to let you dog back for more than 10 minutes at any one time. How will people feel when they hear a noise loud enough to get a pedestrians attention 24/7.
#13 of 18
Re: Please, [boaz47] by steve_ HOST
Oct 04, 2008 (1:33 pm)
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Replying to: boaz47 (Oct 04, 2008 1:13 pm)

I could see a noise only coming on when the car is idling along at, say, less than 10 mph.
 
Cars are pretty noisy as it is. My last house was near an intersection and you'd frequently hear brake squeal and grinding shifters as people navigated through the intersection.
 
But yeah, when I used to hike in bear country, other hiker's bells would drive me batty. Sort of depends on what you get used to I guess. When the weather is right I can hear the roar of tire noise on a highway 2 miles away and it's not pleasant.
#14 of 18
Re: Please, [steve_] by boaz47
Oct 04, 2008 (3:22 pm)
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Replying to: steve_ (Oct 04, 2008 1:33 pm)

If the contention mentioned in the earlier post was that the blind had a problem with a stopped hybrid then the noise would be duplicated by all the hybrid, EV and now GM type of vehicles that shut down their engines at a stop. So ten cars on each side of a street waiting at a stop light would all have to be making some sound. As soon as the other light went red the cars pulling up to that stop would be making the warning noise. This would go on all day and all night. In down town LA or San Diego it would be the cumulative effect of all those cars that would drive you nuts. At night in the cool waterfront air you could hear the beeping for miles.
#15 of 18
Re: Please, [boaz47] by steve_ HOST
Oct 04, 2008 (3:41 pm)
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Replying to: boaz47 (Oct 04, 2008 3:22 pm)

If a car is stopped, there's not much risk of it hitting someone. Someone might walk into it though. Shouldn't be too difficult to have the software figure out when to chime or clip clop or stay silent.

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