Age, gender, mileage and the DBQ: The validity of the Driver Behavior Questionnaire in different driver groups

The Driver Behavior Questionnaire (DBQ) is one of the most widely used instruments for measuring self-reported driving behaviors. Despite the popularity of the DBQ, the applicability of the DBQ in different driver groups has remained mostly unexamined. The present study measured aberrant driving behavior using the original DBQ (Reason, J.T., Manstead, A., Stradling, S.G., Baxter, J., Campbell, K., 1990. Errors and violations on the road - a real distinction. Ergonomics, 33 (10/11), 1315-1332) to test the factorial validity and reliability of the instrument across different subgroups of Danish drivers. The survey was conducted among 11,004 Danish driving license holders of whom 2250 male and 2190 female drivers completed the questionnaire containing background variables and the DBQ. Exploratory and confirmatory factor analysis showed that the original three-factor solution, a four-factor solution and a two-factor solution had acceptable fit when using the whole sample. However, fit indices of these solutions varied across subgroups. The presents study illustrates that both the original DBQ and a Danish four-factor DBQ structure is relatively stable across subgroups, indicating factorial validity and reliability of the DBQ. However, as the Danish DBQ structure has an overall better fit, the present study highlights the importance of performing an explorative analysis when applying the DBQ in order to assess the problem areas within a driving population

Understanding mobility characteristics and needs of older persons in urban Pakistan with respect to use of public transport and self-driving

Since 1990, Pakistan's demographic transition has been increasing life spans with a steady rise in the number of older persons. Pakistan faces many challenges in caring for its older population. The proportion of the population aged 60 years and above is estimated to increase from 5.8% in 2000 to 12.4% in 2050. A study was conducted to understand the existing mobility characteristics of the elderly, their perceived needs and constraining factors. Data was collected using convenient sampling from 450 people aged 60 years or older in nine towns within Lahore City. Older people were approached around urban facilities (shops, banks, terminals) and asked to respond to survey questions. Within-residence interviews were also conducted, mainly for those women who declined interviews in public places. Descriptive and comparative analyses were performed, including Pearson's chi squared test for independence. The results are discussed in terms of mode choice, public transport preferences, self-driving issues and the relative benefits of formal and informal public transport options. The study found lower levels of weekly trip-making compared to those reported for older people in China, South Korea and USA. Vehicle ownership (mainly carsand motorcycles) and socio-demographic factors were found to significantly affect trip making. There were large gender differences in trip making and vehicle ownership, suggesting further research and policy action targeting the mobility needs of elderly women. Older persons were concerned about safety issues concerning public transport and self-driving, and also the behavior of transport crews, and this has informed several of the concluding policy recommendations

Risk of fatal injury in older adult drivers, passengers, and pedestrians

OBJECTIVES: To compare risk of fatal injury in elderly road users (drivers, passengers, pedestrians) with that of younger age groups and to assess the contribution of elderly road users to the number of reported fatalities in the population. DESIGN: Fatality age was categorized as 21 to 29, 30 to 39, 40 to 49, 50 to 59, 60 to 69, or 70 and older, and road user was categorized as driver, passenger, or pedestrian. Estimated number of trips made by each age group was used to adjust for exposure and to measure individual risk. SETTING: Fatalities recorded in Britain between 1989 and 2009. PARTICIPANTS: Population-wide fatal injury counts in Britain. MEASUREMENTS: Age of fatally injured drivers, passengers, and pedestrians. Estimated number of trips made per year by drivers, passengers, and pedestrians. RESULTS: Risk of fatal injury, but not fatality numbers in the population, were higher for older adult (≥ 70) drivers than for younger age groups. Risk of fatal injury was also high for older adult passengers and pedestrians, who represented the majority of older adult fatalities. CONCLUSION: Previous emphasis on driver impairment in older age has unduly focussed attention on elderly drivers, who represent a minority of all driver fatalities. Older adults represent a much larger proportion of passenger and pedestrian fatalities. Additional policy schemes and initiatives should be targeted at safeguarding older adult passengers and making the road environment safer for elderly pedestrians

Big Five Personality Traits as the Distal Predictors of Road Accident Involvement

1st editio