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 The systems often require drivers to take their eyes off the road
for extended periods for when performing simple tasks such as
navigation or radio tuning. And researchers found that the problem
is worse for seniors, who looked away from the road for up to eight
and a half seconds longer than younger drivers.
"We know from prior work that younger drivers are struggling," said
study coauthor David Strayer, a professor and director of the Center
for the Prevention of Distracted Driving at the University of Utah
in Salt Lake City. "We found that older drivers take their eyes off
the road for longer when they are trying to interact with this
technology."
The new findings are particularly important given that there will be
increasing numbers of senior drivers on the roads, said Jake Nelson,
AAA director of traffic safety research and advocacy. And keep in
mind, Nelson said, "whether it's easier-to-see signals or striping
on the roads, if it's good for seniors, it's good for all of us."
For the new study, done as a partnership between the AAA Foundation
for Traffic Safety and the University of Utah, researchers tested
the visual and cognitive demands of infotainment systems in six 2018
vehicles.
Two groups of participants - between ages 21 and 36 and between 55
and 75 - were asked to use the interactive vehicle technologies to
make a call, send a text message, tune the radio and run a
navigation program. To do that, they needed to use voice commands as
well as touch screens. Some of the more complicated systems used
multiple menus and cumbersome voice command functions that made it
hard to complete tasks while watching the road.
In one test, researchers periodically projected a red light onto the
windshield. "The visual and cognitive demands were so great that in
some cases people could detect just 25% of the red lights," Strayer
said. "A lot of these systems require the driver to look at a screen
and reach over and make a precise adjustment."
Strayer and colleagues compared the amount of time it took younger
and older participants to complete a series of tasks and found:
calling and dialing took younger people an average of 17.7 seconds
as compared to 22.4 in the older group; text messaging took younger
people 27.7 seconds to complete versus 33.8 seconds in the seniors;
and navigation entry took the younger adults 31.4 seconds, versus 40
seconds in the older group.
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Strayer suggests that consumers put at least as much energy into
checking out a car's infotainment system as they would in buying a
new phone. "You need to be a smart consumer," he said. "Make sure
you don't buy a car you can't use."
Beyond that, he said, "if your car has features you need to figure
out, figure out how to use them before you start to drive."
And remember, Nelson said, "just because it's built into the car
doesn't mean it's safe to use. You can't make the assumption that
using technology like this while you're traveling down the road at
70 mph is going to be safe."
Strayer and Nelson would like to see car companies make the
infotainment systems easier to use.
Other studies have shown that "distracted driving is a major risk
factor for motor vehicle crashes," said Dr. Guohua Li, a professor
of epidemiology at Columbia University's Mailman School of Public
Health and the founding director of the Center for Injury
Epidemiology and Prevention at Columbia in New York City.
The new study shows "that vehicle infotainment systems could be a
significant source of distraction for drivers, particularly older
drivers," Li, who was not involved with the new research, said in an
email.
Li hopes studies like this will lead car makers to improve the
design of vehicle infotainment systems. "Increased integration,
automation and personalization may minimize the unintended effects
of vehicle technologies," he said.
SOURCE: https://bit.ly/2YlIx7b AAA Foundation for Traffic Safety,
July 2019.
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