IIHS Says Rearview Cameras Alone More Effective than Cameras/Sensors Combined
March 18, 2014 10:06 AM
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Cameras alone are more effective than cameras and parking sensors says survey
Rear view cameras are becoming a standard accessory on many cars sold in the U.S. The cameras have been mandated to prevent accidents where
small children are backed over by inattentive drivers
The Insurance Institute for Highway Safety (IIHS) has performed a study -- using volunteers driving 21 different vehicles in an empty parking lot -- that found backup cameras are much more effective than parking sensors while travelling in reverse.
The results of the study show that cameras would better prevent “backover” crashes into pedestrians who are in the vehicle blind spot than parking sensors alone. Oddly, the study found that while cameras worked better than sensors alone, the camera alone worked better than a combination of sensors and camera.
"Right now cameras appear to be the most promising technology for addressing this particularly tragic type of crash, which frequently claims the lives of young children in the driveways of their own homes," says David Zuby, the Institute's executive vice president and chief research officer.
During testing, researchers used a pole that had bands painted to represent children of different heights. Bands were market for the average height of children 12-15 months old, 2.5-3 years old, and 5-6 years old.
The study found that on average if the child was within about 27-feet of the back bumper, drivers couldn't see them using mirrors and looking around alone. Not surprisingly, large SUVs performed the worst in visibility, while small cars typically performed the best.
An estimated 292 people die each year and 18,000 are injured by drivers that back into them. Backup cameras reduce the rear blind zone by 90% on average according to the study.
Current legislation that would mandate the installation of backup cameras on all new passenger vehicles sold in the U.S.
has been delayed
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RE: Surprised at the results
3/19/2014 8:36:36 AM
I use both. I listen for the sensors under most circumstances, because I've heard stories about how people would end up becoming TOO dependent on the camera alone that they don't drive the way that people are supposed to anyways (i.e. backing INTO the sides of their garage because they don't see it on the screen, rather than looking and checking all around their car).
The reality is that these are all driver assistance technologies, but they're NOT a replacement for the driver.
When I first bought my car, I used it more. But the first two tests that I did was to get a sense for what the red-yellow-green markers mean in real-world, physical length terms, so I checked and tested that. And then the second test that I did was to find out at what point would I NOT be able to see something in the rearview camera, but it was behind the car (testing the camera's field of vision).
After that, I would back up like a driver SHOULD, but I do listen for the beeps and tones from the sensors, and if and when in doubt (about alignment and/or spacing, like backing into a tight spot in a parking garage), I use the camera then.
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