Blind Advocates Upset About Nissan EV's Warning Noises
June 21, 2010 2:15 PM
comment(s) - last by
The 2011 Nissan Leaf EV
(Source: The New York Times)
Critics like the basic premise, but say it was poorly executed
After a couple of
years of debate
about how to best handle the risk that silent electric vehicles pose to blind pedestrians, the
2011 Nissan Leaf EV
offered up a creative solution --
artificial noises emitted while driving
. You might guess that blind rights advocates would be happy.
would be incorrect
, though. The National Federation of the Blind said that while including an alert was a step in the right direction, the system was full of flaws. Their biggest problem was with the fact that the driver could disable the alert. States the group, "[We are] disappointed that the driver is permitted to turn off the sound. [This] in effect, allows drivers to deactivate this important safety feature and thereby endanger pedestrians, especially those who are blind."
Chris Danielsen, a spokesman for the National Federation of the Blind complains, "The biggest thing with us is that we don’t think the driver should be able to switch the sound off."
When enabled, the group is okay with the standard driving warning sound, which they say is "sufficient to alert pedestrians". However, they are also displeased with the reverse warning sound, which unlike the forward noise is not continuous. They comment, "Intermittent sound is not as effective as a continuous sound."
Another complaint they have is that no warning sounds are emitted when the vehicle is idling.
The backup noises sounds somewhat like a ringing bell or submarine sonar, while the forward noise sounds somewhat like a jet tanking off (a whistle) -- or as Mark Perry, the director for product planning at Nissan Americas puts it, "You know that show with David Hasselhoff, Knight Rider? The forward sound reminds me of what KITT sounded like."
The sounds are generate by a synthesizer under the hood and should not disturb passengers within the cockpit, thanks to insulating layers. The sounds measure at 2.5 kHz at the high end of the spectrum to 600 Hz at the bottom.
Nissan recruited high profile help to develop the system, including, the Detroit Institute of Ophthalmology, acoustic psychology experts from the Vanderbilt University Medical Center and a Hollywood sound design studio that was not identified. Interestingly, The National Federation of the Blind -- the organization that is offering up the current criticism -- also helped provide design input for the system.
Perry defends the system against the recent criticism, stating, "They’re entitled to their opinions on the sounds turning off and what the sounds should be. The on-off switch by default is in the on position, and the driver has to make a decision each time to turn it off. The switch is there to balance the needs of drivers and pedestrians, though we think most owners will leave the system on because they can’t hear the sounds inside the car."
The National Highway Traffic Safety Administration and legislators in Congress are currently
working on legislation
which would mandate noisemakers in electric vehicles. There are no such current regulations; the Nissan system was implemented merely in good faith.
This article is over a month old, voting and posting comments is disabled
Do not disturb...
6/21/2010 4:30:49 PM
An off switch that reverts back to "on" each time the vehicle starts is useful just like turning off your lights when you pull into the driveway or residential parking lot late at night so that you do not disturb people. It's up to the drive to use it wisely. If it truly can't be heard in the car, they would need a good reason to turn it off and that is just such a reason. As you can tell, it's of little relevance to their concerns because that reasoning would not have drivers opting out and driving all over the roads with the sound turned off.
Turning off while idling only makes sense. There is no noise requirement for "idling" hibrids with their ICEs turned off at stops and not doing so will cause people to leave thier windows rolled up, wasting gas with air conditioning.
Thinking about this for two seconds reveals justifications for BOTH concerns.
"I mean, if you wanna break down someone's door, why don't you start with AT&T, for God sakes? They make your amazing phone unusable as a phone!" -- Jon Stewart on Apple and the iPhone
All-electric Nissan Leaf to "Whistle" While it Works to Alert Pedestrians
June 14, 2010, 10:50 AM
Hybrids, Electric Cars to Get Noisy to Protect Blind Pedestrians Thanks to NHTSA
May 24, 2010, 10:54 AM
Nissan LEAF EV Priced from $32,780 Before $7,500 Federal Tax Credit
March 30, 2010, 1:01 PM
Blind Pedestrians Continue Their Fight Against "Silent" Hybrids
October 3, 2007, 2:31 PM
Study Predicts Self-Driving Vehicles Could Rake in Billions
March 6, 2015, 8:34 AM
Dual-Motor Tesla Model S P85D's "Insane Mode" Shocks Passengers
January 28, 2015, 11:18 PM
2016 Cadillac CTS-V Packs 640 hp Punch with 200 mph Reach
January 23, 2015, 3:25 PM
BMW Testing Tech to Allow Users to Auto-Park, Summon Cars Via Smartwatch
December 16, 2014, 9:30 AM
Lamborghini Offers Up $6,000 Leather-Bound Android Smartphone
December 12, 2014, 3:12 PM
Quick Note: GM Teases Next Generation Chevrolet Volt
November 20, 2014, 3:26 PM
Most Popular Articles
America's Largest Cable Company, Comcast, Sees Internet Subscriptions Pass TV
May 4, 2015, 2:46 PM
Don't Spy on Me: Senate Pushes Obama's PATRIOT Act Renewal Bid to the Brink
May 25, 2015, 8:21 PM
Buzzfeed, NatGeo, NBC, and NYT Pay to Push Stories to Your Facebook Feed
May 13, 2015, 4:31 PM
Chromebooks Expected to See Sales Grow 26 Percent to 7.3 Million Units This Year
May 22, 2015, 1:26 PM
Report: Ninth Generation iPhones Get Force Touch
May 26, 2015, 2:08 PM
Latest Blog Posts
Sceptre Airs 27", 120 Hz. 1080p Monitor/HDTV w/ 5 ms Response Time for $220
Dec 3, 2014, 10:32 PM
Costco Gives Employees Thanksgiving Off; Wal-Mart Leads "Black Thursday" Charge
Oct 29, 2014, 9:57 PM
"Bear Selfies" Fad Could Turn Deadly, Warn Nevada Wildlife Officials
Oct 28, 2014, 12:00 PM
The Surface Mini That Was Never Released Gets "Hands On" Treatment
Sep 26, 2014, 8:22 AM
ISIS Imposes Ban on Teaching Evolution in Iraq
Sep 17, 2014, 5:22 PM
More Blog Posts
Copyright 2015 DailyTech LLC. -
Terms, Conditions & Privacy Information