Objective
This study aimed (a) to determine whether older drivers looked less often for potential threats while turning than younger drivers and (b) to compare the effectiveness of active and passive training on older drivers’ performance and evaluation of their driving skills in intersections.
Background
Age-related declines in vision, physical abilities, psychomotor coordination, and cognition combine to make it less likely that older drivers will look for potential threats during a turn. Research suggests that active training should be an effective means of improving older drivers’ performance and self-awareness.
Method
In Experiment 1, younger and older participants drove a series of virtual intersection scenarios, were shown video replays, and were provided feedback. In Experiment 2, older drivers were assigned to one of three cohorts: active simulator training, passive classroom training, or no training. Pre- and posttraining simulator and field drives assessed training effectiveness.
Results
In Experiment 1, older drivers looked less often during turns than younger drivers. Customized feedback was successful in altering drivers’ perception of their abilities. In Experiment 2, active training increased a driver’s probability of looking for a threat during a turn by nearly 100% in both posttraining simulator and field drives. Those receiving passive training or no training showed no improvement.
Conclusion
Compared with passive training, active training is a more effective strategy for increasing older drivers’ likelihood of looking for threats during a turn.
Application
The results of this research can guide the development of programs that could reduce intersection crashes among older drivers.
Older drivers are known to look less often for hazards when turning at T-intersections or at four way intersections. The present study is an extension of Romoser & Fisher (2009) and attempts to further analyze the differences in scanning behavior between older and experienced younger drivers in intersections. We evaluated four hypotheses that attempt to explain the older drivers’ failure to properly scan in intersections: difficulty with head movements, decreases in working memory capacity, increased distractibility, and failure to recall specific scanning patterns. To test these hypotheses, older and younger experienced drivers’ point-of-gaze was monitored while they drove a series of simulated intersections with hidden hazards outside of the turning path. Our results suggest that none of these hypotheses can fully explain our finding that older adults are more likely to remain fixated on their intended path of travel and look less than younger drivers towards other areas where likely hazards might materialize. Instead, the results support a complementary hypothesis that at least some of the difficulties older adults have scanning intersections are due to a specific attentional deficit in the older drivers’ ability to inhibit what has become their prepotent goal of monitoring the vehicle’s intended path of travel, thereby causing older drivers to fail to scan hazardous areas outside this intended path of travel.
Purpose
Poor hazard anticipation skills are a risk factor associated with high motor
vehicle crash rates of young drivers. A number of programs have been developed to
improve these skills. The purpose of this review was to assess the empirical literature
on hazard anticipation training for young drivers.
Methods
Studies were included if they: 1) included an assessment of hazard anticipation
training outcomes; 2) were published between January 1, 1980 and December 31, 2013 in an
English language peer-reviewed journal or conference proceeding; and 3) included at
least one group that uniquely comprised a cohort of participants <21 years.
Nineteen studies met inclusion criteria.
Results
Studies used a variety of training methods including interactive computer
programs, videos, simulation, commentary driving, or a combination of approaches.
Training effects were predominantly measured through computer-based testing and driving
simulation with eye tracking. Four studies included an on-road evaluation. Most studies
evaluated short-term outcomes (immediate or few days). In all studies, young drivers
showed improvement in selected hazard anticipation outcomes, but none investigated crash
effects.
Conclusions
Although there is promise in existing programs, future research should include
long-term follow up, evaluate crash outcomes, and assess the optimal timing of hazard
anticipation training taking into account the age and experience level of young
drivers.
Several studies have documented that the failure of drivers to attend to the forward roadway for a period lasting longer than 2-3 seconds is a major cause of highway crashes. Moreover, several studies have demonstrated that novice drivers are more likely to glance away from the roadway than experienced drivers for extended periods when attempting to do a task inside the vehicle. The present study examines the efficacy of a PC-based training program (FOCAL) designed to teach novice drivers not to glance away for these extended periods of time. A FOCAL-trained group was compared to a placebo-trained group in an on-road test, and the FOCAL-trained group made significantly fewer glances away from the roadway that were more than 2 seconds than the placebo-trained group. Other measures indicated an advantage for the FOCAL-trained group as well.
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