To highlight the issues and discuss the research evidence regarding safety, mobility, and other c... more To highlight the issues and discuss the research evidence regarding safety, mobility, and other consequences of different licensing ages. Information included is based on presentations and discussions at a 1-day workshop on licensing age issues and a review and synthesis of the international literature. The literature indicates that higher licensing ages are associated with safety benefits. There is an associated mobility loss, more likely to be an issue in rural states. Legislative attempts to raise the minimum age for independent driving in the United States--for example, from 16 to 17--have been resisted, although in some states the age has been raised indirectly through graduated driver licensing (GDL) policies. Jurisdictions can achieve reductions in teenage crashes by raising the licensing age. This can be done directly or indirectly by strengthening GDL systems, in particular extending the minimum length of the learner period. Supplementary materials are available for this article. Go to the publisher's online edition of Traffic Injury Prevention for the following supplemental resource: List of workshop participants.
Centre For Accident Research Road Safety Qld Faculty of Health Institute of Health and Biomedical Innovation School of Psychology Counselling, Aug 2, 2014
Centre For Accident Research Road Safety Qld Faculty of Health Science Engineering Faculty, Dec 1, 2013
ABSTRACT Exposure control or case-control methodologies are common techniques for estimating cras... more ABSTRACT Exposure control or case-control methodologies are common techniques for estimating crash risks, however they require either observational data on control cases or exogenous exposure data, such as vehicle-kilometres travelled. This study proposes an alternative methodology for estimating crash risk of road user groups, whilst controlling for exposure under a variety of roadway, traffic and environmental factors by using readily available police-reported crash data. In particular, the proposed method employs a combination of a log-linear model and quasi-induced exposure technique to identify significant interactions among a range of roadway, environmental and traffic conditions to estimate associated crash risks. The proposed methodology is illustrated using a set of police-reported crash data from January 2004 to June 2009 on roadways in Queensland, Australia. Exposure-controlled crash risks of motorcyclists—involved in multi-vehicle crashes at intersections—were estimated under various combinations of variables like posted speed limit, intersection control type, intersection configuration, and lighting condition. Results show that the crash risk of motorcycles at three-legged intersections is high if the posted speed limits along the approaches are greater than 60 km/h. The crash risk at three-legged intersections is also high when they are unsignalized. Dark lighting conditions appear to increase the crash risk of motorcycles at signalized intersections, but the problem of night time conspicuity of motorcyclists at intersections is lessened on approaches with lower speed limits. This study demonstrates that this combined methodology is a promising tool for gaining new insights into the crash risks of road user groups, and is transferrable to other road users.
Centre For Accident Research Road Safety Qld Faculty of Health Institute of Health and Biomedical Innovation School of Psychology Counselling, Sep 11, 2012
Centre For Accident Research Road Safety Qld Faculty of Health Institute of Health and Biomedical Innovation School of Psychology Counselling, Oct 14, 2012
ABSTRACT Social harmony can manifest in many ways. In rapidly motorizing countries like China, a ... more ABSTRACT Social harmony can manifest in many ways. In rapidly motorizing countries like China, a growing area of potential disharmony is road use. The increased ability to purchase a car for the first time and a subsequent increase in new drivers has seen several Chinese cities take unprecedented measures to manage congestion. There is a corresponding need to ensure effective traffic law enforcement in promoting a safe environment for all road users. This paper reports qualitative research conducted with Beijing car drivers to investigate perceptions of unsafe road use, penalties for traffic violations, and improvements for the current system. Overall, the findings suggest awareness among drivers of many of the key risk factors. A perceived lack of clarity in how penalties are determined was identified and drivers in-dicated a desire to know how revenue from traffic fines is used. Several suggestions for improving the current system included school/community education about road risks and traffic law. The rise of private car ownership in China may contribute to a more harmonious personal life, but at the same time, may contribute to a decrease in societal harmony. A major challenge for authorities in any country is to promote the idea of a collective responsibility for road safety (traffic harmony), especially to those who perceive that traffic rules do not apply to them. This is a potentially greater challenge for China as it strives to balance harmony on the road and harmony in the broader society.
To highlight the issues and discuss the research evidence regarding safety, mobility, and other c... more To highlight the issues and discuss the research evidence regarding safety, mobility, and other consequences of different licensing ages. Information included is based on presentations and discussions at a 1-day workshop on licensing age issues and a review and synthesis of the international literature. The literature indicates that higher licensing ages are associated with safety benefits. There is an associated mobility loss, more likely to be an issue in rural states. Legislative attempts to raise the minimum age for independent driving in the United States--for example, from 16 to 17--have been resisted, although in some states the age has been raised indirectly through graduated driver licensing (GDL) policies. Jurisdictions can achieve reductions in teenage crashes by raising the licensing age. This can be done directly or indirectly by strengthening GDL systems, in particular extending the minimum length of the learner period. Supplementary materials are available for this article. Go to the publisher's online edition of Traffic Injury Prevention for the following supplemental resource: List of workshop participants.
Centre For Accident Research Road Safety Qld Faculty of Health Institute of Health and Biomedical Innovation School of Psychology Counselling, Aug 2, 2014
Centre For Accident Research Road Safety Qld Faculty of Health Science Engineering Faculty, Dec 1, 2013
ABSTRACT Exposure control or case-control methodologies are common techniques for estimating cras... more ABSTRACT Exposure control or case-control methodologies are common techniques for estimating crash risks, however they require either observational data on control cases or exogenous exposure data, such as vehicle-kilometres travelled. This study proposes an alternative methodology for estimating crash risk of road user groups, whilst controlling for exposure under a variety of roadway, traffic and environmental factors by using readily available police-reported crash data. In particular, the proposed method employs a combination of a log-linear model and quasi-induced exposure technique to identify significant interactions among a range of roadway, environmental and traffic conditions to estimate associated crash risks. The proposed methodology is illustrated using a set of police-reported crash data from January 2004 to June 2009 on roadways in Queensland, Australia. Exposure-controlled crash risks of motorcyclists—involved in multi-vehicle crashes at intersections—were estimated under various combinations of variables like posted speed limit, intersection control type, intersection configuration, and lighting condition. Results show that the crash risk of motorcycles at three-legged intersections is high if the posted speed limits along the approaches are greater than 60 km/h. The crash risk at three-legged intersections is also high when they are unsignalized. Dark lighting conditions appear to increase the crash risk of motorcycles at signalized intersections, but the problem of night time conspicuity of motorcyclists at intersections is lessened on approaches with lower speed limits. This study demonstrates that this combined methodology is a promising tool for gaining new insights into the crash risks of road user groups, and is transferrable to other road users.
Centre For Accident Research Road Safety Qld Faculty of Health Institute of Health and Biomedical Innovation School of Psychology Counselling, Sep 11, 2012
Centre For Accident Research Road Safety Qld Faculty of Health Institute of Health and Biomedical Innovation School of Psychology Counselling, Oct 14, 2012
ABSTRACT Social harmony can manifest in many ways. In rapidly motorizing countries like China, a ... more ABSTRACT Social harmony can manifest in many ways. In rapidly motorizing countries like China, a growing area of potential disharmony is road use. The increased ability to purchase a car for the first time and a subsequent increase in new drivers has seen several Chinese cities take unprecedented measures to manage congestion. There is a corresponding need to ensure effective traffic law enforcement in promoting a safe environment for all road users. This paper reports qualitative research conducted with Beijing car drivers to investigate perceptions of unsafe road use, penalties for traffic violations, and improvements for the current system. Overall, the findings suggest awareness among drivers of many of the key risk factors. A perceived lack of clarity in how penalties are determined was identified and drivers in-dicated a desire to know how revenue from traffic fines is used. Several suggestions for improving the current system included school/community education about road risks and traffic law. The rise of private car ownership in China may contribute to a more harmonious personal life, but at the same time, may contribute to a decrease in societal harmony. A major challenge for authorities in any country is to promote the idea of a collective responsibility for road safety (traffic harmony), especially to those who perceive that traffic rules do not apply to them. This is a potentially greater challenge for China as it strives to balance harmony on the road and harmony in the broader society.
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Papers by Barry Watson