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The Sounds - and Dangers - of Silence
Wednesday, October 14, 2009 2:26 PM  

 

Fisker Karma carSometimes too much of a good thing can be dangerous.

Consider the automobile. Decades after Henry Ford designed the Model T, car manufacturers are building hybrid-electric cars that are so quiet, they are considered dangerous to pedestrians.

The New York Times reports today that hybrid and plug-in electric cars have become so quiet that they are too quiet.

The Pedestrian Safety Enhancement Act of 2009 would mandate a federal safety standard to protect walkers from super quiet vehicles.

A Toyota spokesperson told the Times the company realizes quiet hybrids could be a risk to sight-impaired pedestrians.

The Fisker Karma, a luxury plug-in hybrid scheduled to go on the market next year, will pump out audio from the rear bumpers. The sound is a mix of a starship and a Formula One car, according to the founder.

An official at BMW's Mini Cooper says one option would be giving drivers a choice of noises, the way cell phones offer various ring tones.

A study by the University of California, Riverside and sponsored by the National Federation of the Blind, showed that people in a lab could hear a conventional gas-powered car at 28 feet away - but could only hear a hybrid when it was seven feet away.

Should cars that glide quietly stay quiet, or do they need to emit warning noises? Read more here.

Our hybrid-electric buses are certainly quieter than our diesel-powered buses - but so far, no one is complaining they're too quiet. In an age when we're assaulted with traffic and construction noises, METRO's hybrids are a welcome addition - and subtraction in decibels -  to the road.

Comments

don y said:

Now if only someone had the brains to turn down the speakers on the trains and train platforms.

# October 14, 2009 4:20 PM

DominicMazoch said:

Simon and Garfunkel?

Actually, believe it or not, UP 3985 is very quiet when the warning equipment is not used.  And it is not powered by diesel-electric.  It is a STEAM ENGINE!

# October 14, 2009 6:47 PM

DominicMazoch said:

I can put up with the rail stuff.  What i can't stand is shopping in a store, and it has great music.  Then a ad comes over the air........

# October 14, 2009 6:49 PM

Dominic Mazoch said:

Well, people are so welded to cell phones, they could never hear a jet taking off....

# October 14, 2009 6:51 PM

Steve Palmer said:

The hybrid buses may be a bit less noisy than the regular ones, but they certainly aren't what you'd call quiet.

# October 15, 2009 10:48 AM

Cedric Collins said:

I'm back, folks.  No, I will not change because this is the way I am.  Anyhoo, onto me responding to certain things that got my attention:

"Our hybrid-electric buses are certainly quieter than our diesel-powered buses - but so far, no one is complaining they're too quiet. In an age when we're assaulted with traffic and construction noises, METRO's hybrids are a welcome addition - and subtraction in decibels -  to the road."

Why on Earth would anybody want to complain that hybrid vehicles (not just buses) are too quiet?  Makes no sense to me, as usual.

don y said:  "Now if only someone had the brains to turn down the speakers on the trains and train platforms."

Why?

# October 15, 2009 11:42 AM

DominicMazoch said:

Cedric:   Welcome back!  Now I've got somebody on this blog who wants the three door hybrid A-bus with P&R seats on the 214, et. al!

# October 15, 2009 7:02 PM

DominicMazoch said:

....and regular seats on the 2....

# October 15, 2009 7:03 PM

ChloeMireille said:

"Why on Earth would anybody want to complain that hybrid vehicles (not just buses) are too quiet?  Makes no sense to me, as usual."

Because quiet cars = blind people getting run over crossing the street.

# October 16, 2009 8:16 AM

Cedric Collins said:

Dominic,

Thanks and funny you mention the 214 because that's the bus I RIDE DAILY!!!!

ChloeMireille said:  "Because quiet cars = blind people getting run over crossing the street."

You must mean "people who are deaf," right?

# October 16, 2009 9:44 AM

Cedric Collins said:

"Our hybrid-electric buses are certainly quieter than our diesel-powered buses - but so far, no one is complaining they're too quiet."

This is a true, relevant statement---especially with the MCI hybrids (for example).  You can hear a diesel MCI's engine from a block away (at least) but not one of those MCI hybrids---especially when other vehicles are around and they're all moving at the same time.

# October 16, 2009 10:07 AM

JamesL said:

If the person in question is deaf, it doesn't matter how loud the car is. People who are sight-impaired rely on hearing the oncoming traffic. I gather the issue is that hybrids in electric mode can even sneak up on people who just don't look.

# October 16, 2009 10:09 AM

Steve Palmer said:

I suspect that this whole thing is much ado about nothing. Has there actually been an incident of a blind pedestrian being hit by a hybrid vehicle because the pedestrian didn't hear it coming? Neither this blog nor the NYT article it cites gives a single example.

I drive a Prius, and when it is moving, the (perfectly audible) gas engine is running almost all of the time, so noise is not much of an issue with it.

How about, instead of taking steps to make our streets even noisier than they already are, we simply encourage drivers of hybrids and electrics--along with everybody else--to watch where they're going?

# October 16, 2009 10:18 AM

DominicMazoch said:

Cedric:

I mentioned the 214 because:

1.  The 4400 A-buses (artics) used to run there.

2.  You ride the route.

The non-hybrid MCI at NW BOF will get louder.....

# October 16, 2009 11:48 PM

Don Gallagher said:

ChloeMireille said:

"Because quiet cars = blind people getting run over crossing the street."

It is absolutely insane to add noise to every quiet vehicle simply to avoid accidents as inferred in this blog.

My daughter was born deaf.  Without her cochlear implant, she hears "nothing" other than a jet plane close by.

Exactly how many deaf and blind people are there?  A lot.  But, how many compared to the amount of quiet vehicles we will be having in the near future?  Very low ratio!

The solution is not in making fake noises simply to warn people.  It is to do two things.

One is Steve's point.  Driver's learn the rules and avoid conflict.

The other would be to provide the blind with a GPS type unit that would tell them exactly where they are as well as a sonar-like feature that would tell them if a moving vehicle is honing in on their GPS location.

Solve the problem with the people in need, not with everything else.

Example, they were going to install noise sounds for traffic lights and everyone knows that these things fail constantly.  In fact, do we even have any of those anymore here?

Give the blind this same device and incorporate color detection or signal recognition.

Far cheaper and far less to manufacture, all while giving them to people who will ensure they work as theuir livelyhood and health depends on it.

# October 17, 2009 7:09 AM

don y said:

Metor's answer to safety is NOISE and more NOISE.

# October 17, 2009 7:15 AM

don y said:

Oops, meant to say Metro. All that NOISE has addled my brain.

# October 17, 2009 7:20 AM

Cedric Collins said:

DominicMazoch said:  

"Cedric:

I mentioned the 214 because:

1.  The 4400 A-buses (artics) used to run there.

2.  You ride the route.

The non-hybrid MCI at NW BOF will get louder....."

True statement for #1 AND #2.

# October 20, 2009 9:01 AM

C said:

It never ends. If its too loud then its noise pollution. Too quiet then its a safety issue.

# October 20, 2009 5:07 PM

HoustonHater said:

I'd like to hear Metro close it's doors for good.... Don't worry I have "transit" system for houston....

# October 22, 2009 3:10 PM

Cedric Collins said:

HoustonHater said:  "I'd like to hear Metro close it's doors for good.... Don't worry I have "transit" system for houston...."

LMAO!!  Too cute.  That's like trying to tell people to get rid of mass transit in the Big Apple---aka---NEW YORK CITY!

C said:  "It never ends. If its too loud then its noise pollution. Too quiet then its a safety issue."

I would have to agree with this statement.  To add to that, this would be a no-win situation.

# October 29, 2009 8:39 AM

HoustonHater said:

@Cedric Collins

I said I have transit system. It requires 15,000 vehicles for a city this size.

Around 60,000 for NY(The Greatest City on Earth)

# October 30, 2009 11:38 PM

Cedric Collins said:

HoustonHater,

Doesn't make sense.  NOW---you need to back that up if you think NYC is better than any other city on this planet.

HOUSTON, GREAT CITY 4 LIFE!

# November 2, 2009 6:58 PM

HoustonHater said:

@Cedric Collins

Of course doesn't make sense to you.

Do you really want to have a New York City (vs.) Houston poll?

"HOUSTON, GREAT CITY 4 LIFE!"

Yea, I heard Hurricanes vacation there.

# November 2, 2009 8:54 PM

Cedric Collins said:

HoustonHater,

Son---you wouldn't know how to create a poll if your life depended on it.  I dare you to go to NYC YOURSELF and get your opinions there about whether ot not NYC is better than Houston.

Unfortunately, you do NOT understand that neither city is better than the other.  Think about it.

"Yea, I heard Hurricanes vacation there."  ROTFLMAO!!  Why don't you move to the Big Easy while you're at it.  Big Easy = New Orleans.

# November 3, 2009 8:13 AM
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