United States Department of Transportation
i
Older Drivers’ Use of Rearview Video Systems
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2024-04-01
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[PDF-1.99 MB]
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Edition:Final Report
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Abstract:This investigation examined older drivers’ backing performance using a rearview video system (RVS) versus using inside and outside rearview mirrors alone. On a closed course, participants ages 60 to 69 and 70+ drove an instrumented late model sedan with center-console-mounted RVS display. Researchers tasked participants with backing, following a path defined by pavement markings as closely as possible, backing into a parking space, and completing a three-point turn; in some trials participants were to avoid a traffic cone while backing. Researchers added a single “surprise trial” at the end of the driving session in which they placed a traffic cone behind the test vehicle without the participant’s knowledge. The study measured both the frequency and duration of drivers’ eye glances to and away from the RVS display, along with performance errors. The findings from the backing performance study supported development of an RVS training video that focused on preventing errors observed during that data collection effort and addressing study participants’ difficulties using the technology. The backing performance study results show that instruction should be directed to drivers both experienced and inexperienced with RVS use, focusing not only on detecting/avoiding obstacles to the rear but also on improving the accuracy of backing movements by exploiting the overlay of RVS grid lines on pavement features. Researchers also developed a research plan and data collection protocol to evaluate the effectiveness of the training video in a later investigation. An increasing share of the U.S. passenger vehicle fleet is equipped with RVS technology, which offers safety and convenience benefits, particularly for older drivers whose neck/torso range of motion diminish with normal aging. However, to realize the full potential of their RVS, older drivers may benefit from training to become more proficient in RVS use.
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