Novel use of a virtual driving assessment to classify driver skill at the time of licensure

Motor vehicle crash rates are highest immediately after licensure, and driver error is one of the leading causes. Yet, few studies have quantified driving skills at the time of licensure, making it difficult to identify at-risk drivers before independent driving. Using data from a virtual driving assessment implemented into the licensing workflow in Ohio, this study presents the first population-level study classifying degree of skill at the time of licensure and validating these against a measure of on-road performance: license exam outcomes. Principal component and cluster analysis of 33,249 virtual driving assessments identified 20 Skill Clusters that were then grouped into 4 major summary “Driving Classes”; i) No Issues (i.e. careful and skilled drivers); ii) Minor Issues (i.e. an average new driver with minor vehicle control skill deficits); iii) Major Issues (i.e. drivers with more control issues and who take more risks); and iv) Major Issues with Aggression (i.e. drivers with even more control issues and more reckless and risk-taking behavior). Category labels were determined based on patterns of VDA skill deficits alone (i.e. agnostic of the license examination outcome). These Skill Clusters and Driving Classes had different distributions by sex and age, reflecting age-related licensing policies (i.e. those under 18 and subject to GDL and driver education and training), and were differentially associated with subsequent performance on the on-road licensing examination (showing criterion validity). The No Issues and Minor Issues classes had lower than average odds of failing, and the other two more problematic Driving Classes had higher odds of failing. Thus, this study showed that license applicants can be classified based on their driving skills at the time of licensure. Future studies will validate these Skill Cluster classes in relation to their prediction of post-licensure crash outcomes.     

Cognitive and psychomotor tests as predictors of on-road driving ability in older primary care patients

This study examined the accuracy with which different cognitive and psychomotor assessment tools were able to predict driving ability among older primary care patients. A cross-sectional study of 50 older drivers (with an average age of 73.1 ± 7.0 years) was conducted. Participants who had been referred by their physicians for psychological assessment following a fitness-to-drive examination underwent both an on-road driving test and a cognitive assessment protocol that included the Senior Drivers Battery (SDB) that is currently administered at the Mobility and Land Transports Institute (MLTI) in Portugal, the Useful Field of View (UFOV) test, the Stroke Drivers Screening Assessment (SDSA), Addenbrooke’s Cognitive Examination Revised (ACE-R), the Trail Making Test, the Key Search test, and the Wechsler Adult Intelligence Scale (WAIS-III) Vocabulary and Block Design tests. Logistic regression analysis revealed that the performances of the participants on the SDSA, ACE-R, UFOV and SDB were the best predictors of on-road driving. Specific measures of processing speed and divided attention, visuospatial abilities, executive functions, psychomotor speed and global cognitive functioning may be useful for predicting unsafe driving. The practical implications of these findings are discussed with a view to developing new assessment models for determining driving fitness in older adults.     

Women as a key to enhancing road safety in ultraorthodox communities in Israel

The ultraorthodox sector in Israel, while an integral part of society, has unique cultural characteristics along with limited media exposure. Both these features impact the perceptions of driving and road safety, as well as the ability to influence them. In view of the scarcity of research literature on these issues, the present study sought to gain further insight into the community in an attempt to find a creative way to leverage road safety among ultraorthodox road users in Israel.Using the phenomenological qualitative method, 60 face-to-face in-depth interviews were conducted with women and men of different ages and backgrounds from the major ultraorthodox communities. Findings reveal that for the ultraorthodox, driving is a controversial subject that represents much more than its normative practical function in modern Western societies. It is subject to sociocultural restrictions that are reflected, inter alia, in limited public discourse on road safety. Moreover, the findings highlight the prominent educational role of women in this sector: they are exclusively responsible for raising young children, and are the sole educators of girls of all ages. In addition, as people tend to marry young, and men do not generally drive before marriage, women can influence the safety habits of their spouse as well as their children. The authors suggest building on this potential to increase awareness of road safety by empowering ultraorthodox women to serve as agents of social change in their family and community.     

Do people change behind the wheel? A comparison of anger and aggression on and off the road

The question of whether “we drive as we live” or whether “we are transformed behind the wheel” generates discussion at all levels from the scholarly to the popular. To shed light on this issue, this study measured the personality traits of general anger and driving anger and four modes of expression common to both contexts (verbal, physical, displaced and adaptive) in a sample of 198 drivers. The results showed a moderate correlation between the two measured traits and indicated that each mode of expression correlated better with its equivalent mode in the other context than it did with the other modes of expression. Next, three hypotheses about the multivariate relationship were tested through five path models. These models confirmed that general anger and driving anger, although related to each other, are two different traits: a propensity to general anger and a propensity to driving anger. However, it was observed that when someone experiences anger, either on or off the road, it is expressed in the same way, given that each mode of expression behind the wheel is associated to both the propensity to driving anger and the equivalent mode of expression in a general context. Finally, the study’s implications are discussed.     

Measuring being lost in thought: An exploratory driving simulator study

In driver behaviour research there is considerable focus on distraction caused by specific external systems, such as navigation systems or mobile telephones. However, it is not clear whether self-paced actions such as daydreaming have the same negative effects on driving behaviour. In a driving simulator study, the effects of an internal cognitive process (internal distraction) on driving behaviour and physiological data were compared to the effects of a sound and speech task (external distraction). Three groups of participants made two drives on a motorway, with one control group, one internal distraction group and one external distraction group. Dependent measures included driving behavioural measures, physiological measures and a subjective indication of participants’ experienced involvement in the driving task.The effects of both the internal and external distraction task were reflected in speed, number of lane changes, deceleration, glances and subjective ratings. When an effect was found for both the internal and the external distraction task, the results indicated similar (negative) effects. Participants also indicated that they had the feeling they were less involved in the driving task with both secondary tasks.