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Advanced Search Abstract We investigated the hazard perception ability of older drivers. A sample of older drivers 65 years and older completed a video-based hazard perception test and an assessment battery designed to measure aspects of cognitive ability, vision, and simple reaction time that might plausibly be linked to hazard perception ability.
We found that hazard perception response times increased significantly with age but that this age-related increase could be accounted for by The hazard of elderly drivers of contrast sensitivity and useful field of view. We found that contrast sensitivity, useful field of view, and simple reaction time could account for the variance in hazard perception, independent of one another and of individual differences in age.
However, there has been relatively little research examining this skill in older individuals. Theoretically, how would hazard perception ability be expected to vary among older drivers? The multifactorial model for enabling driving safety proposed by Anstey, Wood, Lord, and Walker provides a framework for making such predictions.
This leads to the prediction that, within the older driver population, hazard perception ability is likely to decline with age because of age-related decreases in cognitive and visual function.
What elements of cognition or vision are likely to account for individual differences in hazard perception in older drivers, and why? This could indicate that experienced drivers gained their hazard perception advantage over novices by applying cognitive resources to a sophisticated and proactive visual search for hazards—an advantage that was diminished once those cognitive resources were diverted elsewhere.
If this is an appropriate model of hazard perception ability, then we would expect age-related deficits in cognitive functioning to have an impact on this ability. For example, slowing of performance will have a direct impact on hazard perception as it is a dynamic task; inhibitory deficits could be important because hazard perception involves identifying relevant cues from irrelevant cues; and task-switching deficits may create problems as hazard perception often involves attending to multiple sources of information.
Hazard perception involves the processing of visual stimuli, and so factors such as visual acuity and contrast sensitivity may mediate hazard perception ability in older drivers.
Drivers are less likely to be able to anticipate hazards effectively if they have difficulty seeing the cues associated with them. Both studies found no significant difference in reaction times to hazards between older and younger drivers, but both studies had low sample sizes 15 and 12 older drivers, respectively.
However, the decrease in hazard perception ability shown on aggregate for older drivers in this study could be due to specific pathologies in certain individuals rather than representing a normal age-related decline in all older adults.
As most older drivers are highly experienced, and driving experience may compensate for age-related deficits, it is possible that healthy older drivers may be able to maintain their hazard perception performance.
The Current Project In this article we describe research in which we developed and validated a test of hazard perception response time, which was completed by a sample of older drivers who also completed a battery of cognitive and vision tests.
We favored measuring hazard perception response time by using a video-based test rather than an on-road assessment because hazards are relatively infrequent events; participants would have to drive for many hours to encounter the number of hazards that can be presented in a few minutes on a video, and video-based simulation allows for a much higher degree of experimental control than is possible in the real world.
Study 1 One key feature of driving is that the context is highly familiar, especially to experienced drivers. It is therefore possible that although older drivers suffer problems with the novel, unfamiliar stimuli generally presented in both vision and psychological tests, they may have fewer problems with familiar driving scenarios.
We considered it important to develop a hazard perception test that was based on situations and locations that would be familiar to our sample of older drivers. Therefore, our first step was to develop a new video-based hazard perception test using everyday road scenes filmed in the vicinity from which our sample was taken and featuring genuine traffic conflicts.Drivers 65 and older are 16 percent likelier than adult drivers (those 25–64 years old) to cause an accident, and they pose much less risk to the public than do drivers under 25, who are percent likelier than adult drivers to cause an accident.
Visual Cuing and driVer Hazard PerCePtion assessed the utility of AR cues in alerting elderly drivers with age-related cognitive impairments to potential roadside hazards, such as pedestri-. A sample of older drivers (65 years and older) completed a video-based hazard perception test and an assessment battery designed to measure aspects of cognitive ability, vision, and simple reaction time that might plausibly be linked to hazard perception ability.
The increasing Are Elderly Drivers a Road Hazard?
number of the elderly in the population and the corresponding growth in the proportion of drivers who are over 65 years is depicted in Figure 1. Elderly Drivers – Are They a Safety Hazard? This entry was posted in Car Safety Tips on 08/18/ by admin. We’re all getting older and the joy and freedom of driving is something none of us wants to ever think about giving up.
An elderly driver who has a history without tickets or at-fault traffic accidents is considered a lower risk than a driver whose record is filled with violations and minor fender benders. In the latter case, the signs may already be there and a closer watch of that person’s behavior behind the wheel may be in order.