Confirmatory factor analysis of the Behaviour of Young Novice Drivers Scale (BYNDS)

Road rule enforcement and where to find it: An investigation of applications used to avoid detection when violating traffic rules

INTRODUCTION

One of the primary countermeasures in place to prevent road rule violations is legal enforcement, yet there are numerous applications that can undermine such efforts by notifying drivers of enforcement locations. However, the capabilities of these applications and how they can impact offending behavior is currently unknown.

METHOD

Two studies were conducted to understand which of these applications are being used by drivers and how these applications are impacting road rule violations. Study 1 consisted of a content analysis that involved searching the Google Play Store and Apple iTunes Store for applications that could be used to avoid road rule violations using pre-determined keywords. Meanwhile, Study 2 consisted of 468 licensed Australian drivers (54.5% males) over the age of 17 years (Mage = 35 years) who completed a survey.

RESULTS

A total of 73 applications were identified for Study 1, with most of the applications displaying speed camera locations. It was found that applications that notify drivers of traffic enforcement locations are widely prevalent, can be used on a variety of interfaces and include numerous additional features. Study 2 found that those who use the applications were more willing to speed than those who do not use the applications, while there was no difference in phone use while driving between those who do and do not use the applications.

PRACTICAL APPLICATIONS

The findings have important implications for stakeholders, policy, and future research. For example, it is suggested that specific functions of these applications need to be regulated to reduce road rule violations and crash risk. Meanwhile, enforcement initiatives need to evolve at a faster rate to keep up to date with the changing technology that can undermine them.

Intentions and willingness to engage in risky driving behaviour among high school adolescents: evaluating the bstreetsmart road safety programme

OBJECTIVE

To investigate the impact of a road safety programme on adolescents' willingness to engage in risky behaviour as probationary drivers, adjusted for covariates of interest.

METHOD

The bstreetsmart is a road safety programme delivered to around 25 000 adolescent students annually in New South Wales. Using a smartphone-based app, student and teacher participation incentives, students were surveyed before and after programme attendance. Mixed-methods linear regression analysed pre/post-modified Behaviour of Young Novice Driver (BYNDS_M) scores.

RESULTS

2360 and 1260 students completed pre-event and post-event surveys, respectively. Post-event BYNDS_M scores were around three points lower than pre-event scores (-2.99, 95% CI -3.418 to -2.466), indicating reduced intention to engage in risky driving behaviours. Covariates associated with higher stated intentions of risky driving were exposure to risky driving as a passenger (1.21, 95% CI 0.622 to 2.011) and identifying as non-binary gender (2.48, 95% CI 1.879 to 4.085), adjusting for other predictors.

CONCLUSIONS

Trauma-informed, reality-based injury prevention programmes can be effective in changing short-term stated intentions to engage in risky driving, among a pre-independent driving student population. The adolescent novice driver age group is historically challenging to engage, and injury prevention action must be multipronged to address the many factors influencing their behaviour.

Risky youth to risky adults: Sustained increased risk of crash in the DRIVE study 13 years on

The objective of this study was to investigate if drivers who exhibit risky driving behaviours during youth (aged 17-24 years) have an increased risk of car crash up to 13 years later. We used data from the DRIVE study, a 2003/04 survey of 20,806 young novice drivers in New South Wales, Australia. The data were linked with police crash, hospital and deaths data up to 2016. We analysed differences in crash associated with 13 items of risky driving behaviours using negative binominal regression models adjusted for driver demographics, driving exposure and known crash risk factors. The items were summarised in one index and grouped into quintiles for the analysis. After adjusting for confounding, drivers of the third (RR 1.16, 95% CI 1.05-1.30), fourth (RR1.22, 95% CI1.09-1.36) and fifth quintile (RR 1.36, 95% CI 1.21-1.53) had higher crash rates compared to the lowest risk-takers. Drivers with the highest scores on the risky driving measure had higher rates of crash related hospital admission or death (RR 1.92, 95% CI 1.13-3.27), crashes in wet conditions (RR 1.35,95% CI 1.05-1.73), crashes in darkness (RR 1.55, 95% CI 1.25-1.93) and head-on crashes (RR 2.14, 95% CI 1.07-4.28), compared with drivers with the lowest scores. Novice adolescent drivers who reported high levels of risky driving when they first obtained a driver licence remained at increased risk of crash well into adulthood. Measures that successfully reduce early risky driving, have the potential to substantially reduce road crashes and transport related injuries and deaths over the lifespan.

Assessing the Road Traffic Crashes among Novice Female Drivers in Saudi Arabia

Background: Recently (in 2018), females were legally allowed to drive and use automobiles in Saudi Arabia (SA) for the first time. This study investigated and analyzed the general fear of driving (GFDS), perceived self-confidence (PSCR), socio-economic variables, demographic distribution, and self-reported RTCs in novice female drivers from SA. Methods: The work was based on survey responses from 9608 participants from the first generation of female drivers from SA. Factor analysis was used to extract GFDS and PSCR scales. Results: Cronbach’s α values of 0.781 and 0.800 were observed for GFDS and PSCR, respectively. Logistic regression was employed to model road traffic collisions (RTCs) as a function of all significant variables. The results showed that of the 17.4% of geographically distributed respondents who reported RTCs, only 4% reported severe or minor injuries, and the rest (96.0%) of the accidents involved property damage. The GFDS and PSCR values showed a positive association with the RTCs of novice female drivers. Furthermore, age was not a significant influencing factor in the RTCs of novice female drivers. However, exposure factors were positively associated with the risk of RTC involvement. Conclusions: Female novice drivers who were single, divorced/widowed, employed, and had higher individual incomes were at higher risk of getting into RTCs. The female drivers who hired personal trainers, compared to those who did not, exhibited similar chances of getting involved in RTCs. An extra on-road in-traffic driving lesson is suggested to be included in the new-driver license training program for drivers with higher GFDS in SA.

Road Safety Perception Questionnaire (RSPQ) in Latin America: A Development and Validation Study

Background: Although public bodies need to know drivers’ perception of road safety, in Latin America there are no valid and reliable instruments that propose an integral dimensionality. The objective of this study was to design and validate a Road Safety Perception Questionnaire (RSPQ). Methodology: The design included a review of the available evidence and expert knowledge to select the dimensional items for the instrument. A pilot test was carried out to determine possible corrections and adjustments to the questionnaire, after which a Confirmatory Factor Analysis was performed on a stratified sample of 736 Ecuadorian drivers to determine its reliability and construct validity. Results: The results suggest that the RSPQ has a clear factorial structure with high factorial weight items and good internal consistency. The results of the 41-item model grouped into six dimensions (human, vehicle, road infrastructure, regulatory framework and intervention measures, socioeconomic and driving precautions) obtained the best adjustment indexes at the absolute, incremental and parsimonious levels. Conclusions: The preliminary RSPQ evidence can be considered a valid and reliable instrument to assess drivers’ perception of road safety.

Are perceptions of penalties stable across time? The problem of causal ordering in deterrence applied to road safety

This study addressed the causal ordering problem in deterrence research by examining the perceptual stability of deterrence variables over time and comparing the results via cross-sectional and longitudinal surveys. This research extends upon scant previous research by including three key classical deterrence variables (i.e., the perceived certainty of apprehension and the perceived severity and swiftness of punishment), as well as Homel's (1988) extra-legal deterrence-related variables of the fear of physical loss, material loss and social sanctions. A longitudinal survey design was utilised over a three month-time period (N = 200, Mage = 20.38 years, 71 males) that examined the stability of the deterrence-related variables for three road rule violations, consisting of 1) exceeding the speed limit by more than 10 km/hr, 2) reading a message on a phone while driving and 3) using the social media platform of Snapchat while driving. Overall, fluctuations were found in all the deterrence-related variables (both legal and extra-legal sanctions), with the largest difference being for the perceptions of the certainty of apprehension. Consequently, it can be suggested that: (a) longitudinal surveys are more reliable when measuring the impact of deterrence perceptions on engagement in offending behaviour and (b) the problem of causal ordering regarding utilising cross-sectional surveys is further illuminated. The results suggest that deterrence is a dynamic process, constantly changing based upon individual experiences, which reinforces the need for continued enforcement efforts (both legal and non-legal), within the road safety arena to maximise rule compliance.

A new version of the Behaviour of Young Novice Drivers Scale (BYNDS). Insights from a randomised sample of 700 German young novice drivers

In Germany, every year 66,000 road crashes lead to death or injury of young novice drivers. This makes them twice as likely to be involved in, or cause, vehicle crashes compared to their older and more experienced counterparts. This study aims to address this societal issue by developing a better understanding of the German young driver problem. For this purpose, we created an updated, 55-item strong version of the Behaviour of Young Novice Drivers Scale (BYNDS), originally developed by Scott-Parker et al. in 2010. To make the new version of the BYNDS understandable for German young novice drivers, this research used a new method of translation in combination with extensive pre-testing. As a result, we identified possible threats for response errors such as retrospective formulated questions or double negations. Due the adjustment of the possible sources of error the presented version of the BYNDS is semantically and conceptually different from the original. However, due to the application of the updated version of the BYNDS in a robust sample of 700 participants, this paper presents the first reliable and validated tool to measure novices risky driving behaviour in Germany. Moreover, it offers an updated and extended version of the BYNDS that allows practitioners but also researchers to broaden their understanding of young driver risk.

Risky driving behaviour in Abu Dhabi, United Arab Emirates: a cross-sectional, survey-based study

Background

Traffic collision fatality rates per mile travelled have declined in Abu Dhabi similar to many developed countries. Nevertheless, the rate is still significantly higher than the average of countries with similar GDP and socio-demographic indicators. The literature on the subject in the UAE is limited especially in the area of studying drivers behaviour. This study aims to find determinants of risky driving behaviours that precipitate having a road traffic collision (RTC) in the United Arab Emirates (UAE).

Methods

A cross-sectional, survey-based study was employed. Participants were 327 active drivers who were attending Abu Dhabi Ambulatory Health Care Services clinics. They were provided with a questionnaire consisting of demography, lifestyle history, medical history, driving history, and an RTC history. They were also given a driving behaviour questionnaire, a distracted driving survey, depression screening and anxiety screening.

Results

Novice drivers (less than 25 years old) were 42% of the sample and 79% were less than 35 years. Those who reported a history of an RTC constituted 39.8% of the sample; nearly half (47.1%) did not wear a seatbelt during the collision. High scores in the driving behaviour questionnaire and high distraction scores were evident in the sample. Most distraction-prone individuals were young (90.5% were less than 36 years old). High scores in the driving behaviour questionnaire were also associated with high distraction scores (p < 0.001). Respondents with high depression risk were more likely to be involved in the RTC. With each one-point increase in the driver’s distraction score, the likelihood of a car crash being reported increased by 4.9%.

Conclusion

Drivers in the UAE engage in risky behaviours and they are highly distracted. Some behaviours that contribute to severe and even fatal injuries in RTCs include failing to wear a seatbelt and being distracted. Younger people were more likely distracted, while older drivers were more likely to have higher depression scores. Depression is suggested as a determinant factor in risky driving. These findings are informative to other countries of similar socioeconomic status to the UAE and to researchers in this field in general.

Association between higher-order driving instruction and risky driving behaviours: Exploring the mediating effects of a self-regulated safety orientation

Adolescents' risky driving behaviours contribute to their over-representation in road trauma. Higher-order driving instruction is suggested to reduce such behaviours. To sustain positive behaviours in the long-term, self-determination theory identifies self-regulation as fundamental. The current research explored associations between higher-order driving instruction, risky driving behaviours, and a self-regulated safety orientation. Learner drivers (n = 544), aged 16-19 years, responded to a 91-item survey. Self-regulated safety orientation was found to fully mediate the relationship between higher-order driving instruction and inattentive risky driving behaviours, and between anticipatory higher-order driving instruction and intentional risky driving behaviours. A partial mediation was found between self-regulatory higher-order instruction and intentional risky driving behaviours. These results support that higher-order driving instruction, delivered to develop a self-regulated safety orientation, has potential to reduce young novice drivers' risky driving behaviours. Further research is recommended to triangulate these results through direct observation and longitudinal evaluation.

Simulated Driving Performance, Self-Reported Driving Behaviors, and Mental Health Symptoms in Adolescent Novice Drivers

BACKGROUND

Risky driving behaviors contribute to adolescent injury, disability, and death, yet little is known about how mental health factors are associated with adolescent driving behaviors.

OBJECTIVES

The purpose of the research was to determine the association of risky driving behaviors and mental health symptoms in novice adolescent drivers.

METHODS

We recruited a convenience sample (n = 60) of adolescents to complete an assessment of driving performance errors in a high-fidelity simulator (Simulated Driving Assessment [SDA] Error Score) and a self-report measure of risky driving (Behavior of Young Novice Drivers Survey [BYNDS]). Participants also completed a mental health assessment of self-reported symptoms of depression (Center for Epidemiologic Studies-Depression Scale) and attention-deficit/hyperactivity disorder (ADHD; inattention and hyperactivity-impulsivity), conduct disorder, and oppositional defiant disorder (Conners-3 self-report and parent report). We evaluated the cross-sectional relationships between SDA Error Score, BYNDS, and mental health survey data with descriptive statistics, bivariate correlations, and linear regression.

RESULTS

In linear regression models, higher self-reported inattentive ADHD T-scores were associated with higher SDA Error Score (model adjusted R = .20). Higher self-reported T-scores of hyperactive-impulsive ADHD and conduct disorder were associated with higher BYNDS total scores (model adjusted R = .32). Parent report measures were not associated with adolescent BYNDS total score or SDA Error Score.

DISCUSSION

These data highlight the association of risky driving with adolescent symptoms of inattention, hyperactivity, and conduct disorder. The early stage of independent driving is an important time for addressing the relationship between driving performance and mental health conditions.

Fast and furious: A neglected issue in health promotion among young drivers

ISSUES ADDRESSED

This paper investigates the influence of mood while driving, advocates for identifying high-risk groups and detects associations between mood while driving and risky driving behaviours. While commensurate studies regarding aggressive driving have confirmed significant detriments in driving performance, little scholarly research has studied the gaps and opportunities at the intersection of mood and risky driving in young drivers.

METHODS

A cross-sectional design was implemented using 660 young drivers (17-25 years) from Australia (34.7%) and Colombia (65.3%), who completed the Behaviour of Young Novice Drivers Scale (BYNDS). Cluster analysis differentiated young drivers across two groups: high-risk and low-risk driving while influenced by mood. Hierarchical segmentation analysis explored the relationship between driver mood and self-reported risky driving behaviour.

RESULTS

Young drivers reported frequent driving while influenced by mood. The typical risky driving behaviours of young drivers who are emotion-affected are transient violations (eg, speeding) and risky exposure (eg, driving tired).

CONCLUSIONS

Risky driving behaviours that have been found to increase the risk of road injury (speeding, fatigued driving) and to decrease the survivability of road crashes (speeding) are inextricably intertwined with the influence of driver mood upon driving behaviour at an international level. Driver mood is a neglected issue in health promotion programs for young drivers. SO WHAT?: Current health promotion interventions for young drivers safety such as Graduated Driver Licensing may not prevent driving while influenced by mood. Additional strategies are required to minimise the exposure to driving while affected by negative mood.

Driver prototypes and behavioral willingness: Young driver risk perception and reported engagement in risky driving

INTRODUCTION

This study aimed to explore perceived risk and reported willingness to engage in risky driving in a sample of young Australian drivers. The study also considered the influence of gender, driving experience, and risky driver prototypes on willingness to engage in risky driving. Within this context, a prototype is a social image of the type of person who engages in specific risk behaviors. In the prototype willingness model (PWM), willingness accounts for motivations that do not directly rely on planning or goal formation.

METHODS

The PWM was applied to a sample of 554 drivers (aged 17-25 years) to explore how risky driver prototypes: similarity (extent of identification with the prototype), favorability (how positive is the image), and behavioral willingness, may influence their perceived risk and reported engagement in risky driving behaviors. Drivers holding an Australian driver's license (Provisional 1, Provisional 2, or Open) anonymously completed an online survey measuring: 1) driver prototypes and behavioral willingness to engage in risky driving behaviors, 2) perceived risk of driving-related behaviors, and 3) the Behavior of Young Novice Drivers Scale transient and fixed violations subscales.

RESULTS

Path analysis explored relationships between prototypes and willingness variables, perceived risk, and reported driving engagement. Goodness-of-fit statistics supported the conceptual model. Behavioral willingness showed the strongest relationship with perceived risk (negative) and reported driving violation engagement (positive).

CONCLUSIONS

Risky driver prototypes and behavioral willingness, as well as driver's sex and driving experience, may help to explain individual differences in perceived risk, and young driver reported risky driving engagement.

PRACTICAL APPLICATIONS

Identifying relevant factors that could be amenable to change, such as driver prototype and willingness variables, may contribute to improved road safety initiatives, and provide information and support to counter factors that might otherwise facilitate young drivers' risk perceptions and risky driving engagement.

Depressive and socially anxious symptoms, psychosocial maturity, and risk perception: Associations with risk-taking behaviour

Risk-taking behaviour and onset of mental illness peak in adolescence and young adulthood. This study evaluated the interconnectedness of the domains of risk-taking behaviour, mental health (symptoms of depression and social anxiety), psychosocial maturity, risk perception, age, and gender in a sample of 306 adolescents and young adults. Participants between the ages of 16 and 35 completed online self-report measures assessing risk-taking behaviour, depressive symptoms, socially anxious symptoms, psychosocial maturity and risk perception. Socially anxious symptoms, psychosocial maturity, and risk perception were directly associated with risk-taking behaviour. Correlations between depressive symptoms, socially anxious symptoms, and psychosocial maturity were found. Psychosocial maturity proved a better predictor of risk-taking behaviour than age in this cohort. The findings indicate that mental health impacts upon risk-taking behaviour and that consideration should be given to psychosocial maturity in attempts to reduce adolescent and young adult risk-taking behaviour.

The sex disparity in risky driving: A survey of Colombian young drivers

OBJECTIVE

The overrepresentation of young drivers in poor road safety outcomes has long been recognized as a global road safety issue. In addition, the overrepresentation of males in crash statistics has been recognized as a pervasive young driver problem. Though progress in road safety evidenced as a stabilization and/or reduction in poor road safety outcomes has been made in developed nations, less-developed nations contribute the greatest road safety trauma, and developing nations such as Colombia continue to experience increasing trends in fatality rates. The aim of the research was to explore sex differences in self-reported risky driving behaviors of young drivers, including the associations with crash involvement, in a sample of young drivers attending university in Colombia.

METHODS

The Spanish version of the Behaviour of Young Novice Drivers Scale (BYNDS-Sp) was applied in an online survey to a sample of 392 students (225 males) aged 16-24 years attending a major university. Appropriate comparative statistics and logistic regression modeling were used when analyzing the data.

RESULTS

Males reported consistently more risky driving behaviors, with approximately one quarter of all participants reporting risky driving exposure. Males reported greater crash involvement, with violations such as speeding associated with crash involvement for both males and females.

CONCLUSION

Young drivers in Colombia appear to engage in the same risky driving behaviors as young drivers in developed nations. In addition, young male drivers in Colombia reported greater engagement in risky driving behaviors than young female drivers, a finding consistent with the behaviors of young male drivers in developed nations. As such, the research findings suggest that general interventions such as education, engineering, and enforcement should target transient rule violations such as speeding and using a handheld mobile phone while driving for young drivers in Colombia. Future research should investigate how these interventions could be tailored specifically for the Colombian cultural context, including how their effects can be evaluated, prior to implementation.

Young drivers and their cars: Safe and sound or the perfect storm?

Consistent with the experiences in high-income countries, young drivers remain overrepresented in road trauma statistics in low- and middle-income countries. This article pursues the emerging interest of approaching the young driver problem from a systems thinking perspective in order to design and deliver robust countermeasures. Specifically, the focus of this paper is the cars driven by young drivers. The study of vehicles' characteristics and their interaction with driving behaviour is, more often than not, considered a minor concern when developing countermeasures in young drivers' safety not only in developed nations, but especially in developing nations. Participants completed an online survey containing the 44-item Behaviour of Young Novice Drivers Scale Spanish version (BYNDS-Sp), in addition to providing information regarding their vehicle, any crash involvement, and driving offences. Based on the vehicle model information, the assessment of vehicle safety was conducted for three safety programs (ANCAP, Latin NCAP, U.S. NCAP). Young drivers in Colombia reported a breadth of risky driving behaviours worth targeting in broader interventions. For example, interventions can target speeding, particularly as three quarters of the participants drove small-medium cars associated with poorer road safety outcomes. Moreover, risky driving exposure was highly prevalent amongst the young driver participants, demonstrating the need for them to be driving the safest vehicles possible. It is noteworthy that few cars were able to be assessed by the Latin NCAP (with half of the cars rated having only 0-2 star ratings), and that there was considerable discrepancy between ANCAP, U.S. NCAP, and Latin NCAP ratings. The need for system-wide strategies to increase young driver road safety-such as improved vehicle safety-is vital to improve road safety outcomes in jurisdictions such as Colombia. Such improvements may also require systemic changes such as enhanced vehicle safety rating scales and investigation of the nature of vehicles sold in developing nations, particularly as these vehicles typically contain fewer safety features than their counterparts sold in developed nations.

Young driver risky behaviour and predictors of crash risk in Australia, New Zealand and Colombia: Same but different?

Young drivers remain overrepresented in road crashes around the world, with road injury the leading cause of death among adolescents. In addition, the majority of road traffic crashes, fatalities and injuries occur in low- and middle-income countries. All young drivers are at risk due to a breadth of age- and inexperience-related factors; however it is well recognised that young drivers may also intentionally engage in risky driving behaviours which increase their crash risk. The aim of this paper is to examine the self-reported risky driving behaviour of young drivers in Australia, New Zealand (high-income countries), and Colombia (middle-income country), and to explore the utility of a crash risk assessment model in these three countries. Young drivers aged 16-25 years completed the Behaviour of Young Novice Drivers Scale (BYNDS), in addition to self-reporting crash involvement and driving offences. A hierarchical segmentation analysis via decision trees was used to study the relationship between self-reported crashes and risky driving. Young drivers in Colombia reported more risky driving than young drivers in New Zealand, and considerably more risky driving than young drivers in Australia. Significant differences among and across countries in individual BYNDS items were found, and 23.5% of all participants reported they had been involved in a road crash. Handheld mobile phone usage was the strongest predictor of crashes, followed by driving after drinking alcohol, and carrying friends as passengers. Country of origin predicted mobile phone usage, with New Zealand and Colombia grouped in the same decision tree branch which implies no significant differences in the behaviour between these countries. Despite cultural differences in licensing programs and enforcement, young drivers reported engaging in a similar breadth of risky behaviours. Road crashes were explained by mobile phone usage, drink driving and driving with passengers, suggesting interventions should target these three risk factors. Whilst New Zealand and Australia have implemented graduated driver licensing programs, are geographical neighbours, and are high-income countries, the finding that behaviours of young drivers in New Zealand and Colombia were more similar than those of young drivers in New Zealand and Australia merits further investigation.

Texting while driving: the development and validation of the distracted driving survey and risk score among young adults

BACKGROUND

Texting while driving and other cell-phone reading and writing activities are high-risk activities associated with motor vehicle collisions and mortality. This paper describes the development and preliminary evaluation of the Distracted Driving Survey (DDS) and score.

METHODS

Survey questions were developed by a research team using semi-structured interviews, pilot-tested, and evaluated in young drivers for validity and reliability. Questions focused on texting while driving and use of email, social media, and maps on cellular phones with specific questions about the driving speeds at which these activities are performed.

RESULTS

In 228 drivers 18-24 years old, the DDS showed excellent internal consistency (Cronbach's alpha = 0.93) and correlations with reported 12-month crash rates. The score is reported on a 0-44 scale with 44 being highest risk behaviors. For every 1 unit increase of the DDS score, the odds of reporting a car crash increases 7 %. The survey can be completed in two minutes, or less than five minutes if demographic and background information is included. Text messaging was common; 59.2 and 71.5 % of respondents said they wrote and read text messages, respectively, while driving in the last 30 days.

CONCLUSION

The DDS is an 11-item scale that measures cell phone-related distracted driving risk and includes reading/viewing and writing subscores. The scale demonstrated strong validity and reliability in drivers age 24 and younger. The DDS may be useful for measuring rates of cell-phone related distracted driving and for evaluating public health interventions focused on reducing such behaviors.

Validation of the Behaviour of Young Novice Drivers Scale (BYNDS) in a New Zealand young driver population

The Behaviour of Young Novice Drivers Scale, the BYNDS (Scott-Parker et al., 2010), is a reliable and valid self-report 44-item instrument which explores the frequency of a breadth of risky driving behaviours which appear to place young and novice drivers at an increased risk of road crash injury. As part of a larger collaborative research project, the Australian-developed BYNDS was piloted in a sample of 20 young New Zealand drivers n=14 aged 16-18 years, 9 males; n=6 aged 19-24 years, 2 males. The wording of 21 BYNDS items was modified to reflect the cultural context of the participating New Zealand drivers. The refined BYNDS was applied in a sample of 325 young drivers n=116 aged 16-18 years, 65 males; n=209 aged 19-24 years, 98 males, and the factor structure examined, including exploratory factor analysis for each gender. The 5-factor structure of the BYNDS was supported, with young drivers reporting considerable engagement in risky driving exposure, moderate engagement in transient violations and mood-related driving, and less fixed violations and driving misjudgements. Risky driving exposure was predictive of self-reported crash involvement for both males and females, suggesting targeted intervention regarding when, and the circumstances under which, the young driver is on the road.

Movilidad, accidentalidad por tránsito y sus factores asociados en estudiantes universitarios de Guatemala

El objetivo fue identificar y cuantificar la asociación entre la intensidad de exposición (km/año recorridos), la accidentalidad y sus factores asociados en universitarios de Guatemala. Se realizó un estudio trasversal durante el curso 2010-2011, sobre una muestra de 1.016 conductores, quienes cumplimentaron un cuestionario autoadministrado que valoraba: patrones de movilidad, uso de dispositivos de seguridad, estilos de conducción y accidentalidad. Se obtuvieron asociaciones positivas entre la intensidad de exposición y la mayor implicación en circunstancias de riesgo al volante (coeficiente de regresión ajustado de 3,25, IC95%: 2,23-4,27, para las mayores exposiciones). Tanto una mayor implicación en tales circunstancias, como una mayor edad, fueron las variables más fuertemente asociadas con la mayor accidentalidad. Pese a que la intensidad de exposición se asocia positivamente con una mayor accidentalidad, se constató que la mayor parte de dicha asociación está mediada por una mayor implicación en circunstancias de riesgo al volante.

Modeling and analyzing traffic safety perceptions: An application to the speed limit reduction pilot project in Edmonton, Alberta

To address the speeding problem in residential areas, the City of Edmonton initiated a pilot project to reduce the posted speed limit from 50km/h to 40km/h within six residential communities. This paper investigates the community perceptions of traffic safety within the six pilot communities in two phases: prior to project initiation (pre-pilot) and following the end of the project (post-pilot). This objective was accomplished by analyzing the results of two random dialing telephone surveys comprising 300 residents each. A preliminary analysis showed compatible demographic configurations for the two samples and confirmed that the residents were aware of both the posted speed limits and the adopted speed management controls. For the confirmatory factor analysis (CFA), a two-group (pre-pilot and post-pilot) three-factor model was used to assess the residents' perceptions of the speeding behavior (Speeding), their concerns about traffic safety issues (Concerns), and their perceptions of traffic safety (Safety). Comparing the CFA results of the post-pilot survey versus those of the pre-pilot survey, it was evident that there was a significant decrease in Speeding and Concerns accompanied by a significant increase in Safety. A structural equations model (SEM) was also fitted to the data in order to assess the impact of Speeding and Concerns on Safety. The results showed that Concerns increase significantly with Speeding, and that both factors have significant negative impacts on Safety. However, while the impact of Concerns on Safety was direct, that of Speeding on Safety was largely indirect (i.e., mediated through Concerns). Overall, the multivariate analysis has demonstrated that the pilot project was successful in improving the residents' perceptions of traffic safety in their community.