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Posted: Mar 03, 2015

Understanding electric car 'range anxiety' could be key to wider acceptance

(Nanowerk News) Manufacturers of battery electric vehicles, or BEVs, have increased their offerings in response to rising consumer concerns over gas prices and the environment. Drivers have been slow to adopt BEVs due to "range anxiety," the fear of becoming stranded with an empty battery. This phenomenon was recently addressed in a study published in Human Factors that aims to explain range anxiety and determine whether hands-on BEV experience can reduce drivers' stress.
electric vehicle charger
"Range anxiety is a popular topic in the field of electric vehicles, and is frequently named as a key barrier for widespread adoption of BEVs," said coauthor Nadine Rauh, a research assistant in the Department of Cognitive and Engineering Psychology at Germany's Technische Universitšt Chemnitz. "We strongly believe that a better understanding of the phenomenon of range anxiety can help us to find ways of enhancing user experience in BEV driving, thereby increasing acceptance of this type of alternative vehicle."

In "Understanding the Impact of Electric Vehicle Driving Experience on Range Anxiety," Rauh and fellow researchers Thomas Franke and Josef Krems asked 24 experienced and inexperienced BEV users to drive a test route through country roads, in villages, and on the German Autobahn. To increase range stress, participants were told that because of an unexpected technical problem, the BEV was not fully charged.

When the vehicle's display showed that the remaining range was less than the anticipated trip length, experienced BEV drivers exhibited significantly less anxiety than did those who were unfamiliar with electric cars. The researchers caution that further study is needed to determine what other variables play a role in decreasing range anxiety.
"Drivers who are new to BEVs can experience a lot of stress, but as time goes by they will become more confident in both the BEV's range and in their own abilities to manage any situations that may arise," said Franke, a postdoctoral researcher at Technische Universitšt Chemnitz. "Despite advances in technology that will allow for a longer range, human factors research will remain an important tool for helping to design sustainable and user-friendly electric mobility systems."
Source: Human Factors and Ergonomics Society
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