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1.
J Safety Res ; 76: 118-126, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33653542

RESUMO

INTRODUCTION: This study evaluates prevalence and trends in distracted driving in Canada based on multiple indicators collected from the Road Safety Monitor (RSM) and Canada's National Fatality Database maintained by the Traffic Injury Research Foundation (TIRF). METHOD: Data from the RSM on self-reported distracted driving behaviors were analyzed using multivariate techniques including logistic regression analysis in various years spanning from 2004 to 2019. Data from TIRF's National Fatality Database from 2000 to 2016 were also analyzed using piecewise regression analysis to evaluate trends and prevalence of driver distraction. RESULTS: Significantly more Canadians reported talking on their phone hands-free or handheld phone while driving in 2019 compared to 2010. There was a 102% increase in the percentage that reported texting while driving in 2019 (9.7%) compared to 2010 (4.8%). For every 10-year increase in age, drivers were 44% less likely to text, 38% less likely to use a handheld phone, and 28% less likely to use a hands-free phone. Males were 62% more likely to use a handheld phone and 50% more likely to use a hands-free phone than females. Findings related to drivers' perceived danger of distracted driving and attitudes are also presented. Although the number of distraction-related fatalities has not increased substantially from 2000 to 2016, the percentage of all fatalities where distraction was a contributing factor has increased. Unlike drinking drivers, distracted drivers more often kill other road users in crashes than kill themselves. CONCLUSIONS: In conclusion, while most Canadians appear to understand that one of the high-risk forms of distracted driving (i.e., texting while driving) is indeed dangerous, there is a minority who are unaware of, or resistant to, this fact. Practical Applications: Enforcement activities and education initiatives to combat distracted driving ought to be tailored to the target audience based on the patterns uncovered.


Assuntos
Direção Distraída/estatística & dados numéricos , Direção Distraída/tendências , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Canadá/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Autorrelato , Fatores Sexuais , Adulto Jovem
2.
J Safety Res ; 70: 193-199, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31847995

RESUMO

INTRODUCTION: As seniors represent a growing proportion of the driving population, research about how automated vehicles can help improve older driver safety and mobility is highly relevant. This paper examines the knowledge, attitudes and perceptions of older drivers towards limited self-driving vehicles (LSDVs), and how these variables can influence the likelihood that they will rely on this technology. METHOD: The study includes data from a previous national survey (N = 2662) about automated vehicle technology, with new analyses to test hypothetical models using structural equation modeling. Results of the first model were confirmed and built upon with a second more complex model that incorporated the construct "behavioral adaptation." Focus groups with older drivers were also conducted (N = 38) to help reveal nuances in older drivers' knowledge, attitudes, perceptions, and behaviors regarding this technology. RESULTS: Survey results demonstrated that feelings of safety and knowledge about LSDVs are positively related to perceived ease of use and adoption of the technology. The positive association between safety and perceived ease of use was further highlighted when comparing responses of older drivers to those of younger age groups, as older drivers were significantly less likely to agree that LSDVs were easy to use and were significantly less agreeable about feeling safe using them. Focus groups results confirmed that safety and knowledge of LSDVs are essential to the likelihood of adopting this technology, and revealed a high receptivity among older drivers to educational strategies and tools to increase their knowledge of LSDVs. Implications for educational strategies and safety benefits for older drivers are discussed. Practical applications: Results provide insight into strategies to encourage the early adoption of automated vehicles by older drivers and facilitate a safer transition towards automated vehicles that is lead by a cohort of safety-conscious drivers.


Assuntos
Atitude , Automação , Condução de Veículo/psicologia , Veículos Automotores/classificação , Segurança , Adolescente , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Canadá , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Tecnologia , Adulto Jovem
3.
J Safety Res ; 68: 181-186, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30876509

RESUMO

OBJECTIVES: This study examines drivers' responses to wildlife on Canadian roads. The objective of this paper is to demonstrate that knowledge of what to do when encountering wildlife on the road does not always translate into the appropriate behavior to avoid a collision. METHODS: Data from the Traffic Injury Research Foundation's (TIRF) 2016 Road Safety Monitor (RSM) and data from TIRF's National Fatality Database from 2000 to 2014 were analyzed to test hypotheses based on the theory of planned behavior. Logistic regression and piecewise linear regression were used. RESULTS: Analyses of the data showed that the prevalence of fatal WVCs has remained relatively consistent, and that the majority of persons killed in WVCs died in crashes that involved large mammals. The majority of fatalities occurred in the summer (182 or 38.4%) and fall (163 or 34.4%). The RSM data revealed that 60.9% [50.5, 70.4] of respondents who previously hit an animal indicated that drivers should slow down and steer straight when confronted with wildlife, while 47.3% [37.1, 57.6] of respondents indicated this was the action they took when they hit wildlife. Comparatively, 59.5% [56.6, 62.4] of respondent who have not hit an animal indicated this was an appropriate response. Additionally, 33.2% [24, 44] of respondents who previously hit an animal indicated that drivers should swerve to avoid a collision with wildlife, while 37.5% [28.2, 47.8] of respondents indicated this was the action they took when they hit wildlife. CONCLUSIONS: Many drivers are unaware of what the safest method of WVC prevention is. Further, while a subgroup of drivers may have the knowledge and intention to slow down and steer straight even if the animal is directly in the path, i.e., the safest possible behavior, they are not necessarily adopting this behavior. Practical applications: Recommendations are formulated to address this discrepancy, as well as practical applications.


Assuntos
Acidentes de Trânsito , Animais Selvagens , Conhecimentos, Atitudes e Prática em Saúde , Acidentes de Trânsito/prevenção & controle , Acidentes de Trânsito/estatística & dados numéricos , Adulto , Idoso , Animais , Canadá , Bases de Dados Factuais , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Modelos Teóricos , Prevalência , Registros , Segurança , Estações do Ano
4.
Accid Anal Prev ; 125: 267-274, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30802777

RESUMO

INTRODUCTION: Cameras for detecting traffic violations have been used as a measure to improve road safety in different countries around the world. In Cali, Colombia, fixed cameras were installed in March 2012 on a number of roads and intersections. All camera devices are capable of detecting simultaneously the following traffic violations: driving over the speed limit, running a red light or stop sign, violation of the traffic ban schedule, and blocking the pedestrian crosswalk. OBJECTIVE: To evaluate the impact of camera enforcement of traffic violations in Cali, Colombia. METHODS: A quasi-experimental difference-in-differences study with before and after measurements and a comparison group was conducted. We observed 38 intervention areas and 50 comparison areas (250 m radius), during 42 months before and 34 months after the installation of cameras. Effects were estimated with mixed negative binomial regression models. RESULTS: In intervention areas, after 12 months, there was a reduction of 19.2% of all crashes and a 24.7% reduction of injury and fatal crashes. In comparison areas, this reduction was 15.0% for all crashes and 20.1% for injury and fatal crashes. After adjusted comparisons, intervention sites outperformed comparison sites with an additional yearly reduction of 5.3% (p = 0.045) for all crashes. CONCLUSIONS: The use of cameras for detecting traffic violations seems to have a positive effect on the reduction of crashes in intervention areas. A beneficial spillover effect was found as well in comparison areas; but more evaluations are needed.


Assuntos
Acidentes de Trânsito/prevenção & controle , Condução de Veículo/legislação & jurisprudência , Fotografação/métodos , Acidentes de Trânsito/estatística & dados numéricos , Condução de Veículo/estatística & dados numéricos , Colômbia , Humanos , Aplicação da Lei/métodos , Modelos Estatísticos , Ensaios Clínicos Controlados não Aleatórios como Assunto
5.
Accid Anal Prev ; 106: 160-165, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28618354

RESUMO

BACKGROUND: In many jurisdictions, a risk assessment following a first driving while impaired (DWI) offence is used to guide administrative decision making regarding driver relicensing. Decision error in this process has important consequences for public security on one hand, and the social and economic well being of drivers on the other. Decision theory posits that consideration of the costs and benefits of decision error is needed, and in the public health context, this should include community attitudes. The objective of the present study was to clarify whether Canadians prefer decision error that: i) better protects the public (i.e., false positives); or ii) better protects the offender (i.e., false negatives). METHODS: A random sample of male and female adult drivers (N=1213) from the five most populated regions of Canada was surveyed on drivers' preference for a protection of the public approach versus a protection of DWI drivers approach in resolving assessment decision error, and the relative value (i.e., value ratio) they imparted to both approaches. The role of region, sex and age on drivers' value ratio were also appraised. RESULTS: Seventy percent of Canadian drivers preferred a protection of the public from DWI approach, with the overall relative ratio given to this preference, compared to the alternative protection of the driver approach, being 3:1. Females expressed a significantly higher value ratio (M=3.4, SD=3.5) than males (M=3.0, SD=3.4), p<0.05. Regression analysis showed that both days of alcohol use in the past 30days (CI for B: -0.07, -0.02) and frequency of driving over legal BAC limits in the past year (CI for B=-0.19, -0.01) were significantly but modestly related to lower value ratios, R2(adj.)=0.014, p<0.001. Regional differences were also detected. CONCLUSIONS: Canadian drivers strongly favour a protection of the public approach to dealing with uncertainty in assessment, even at the risk of false positives. Accounting for community attitudes concerning DWI prevention and the individual differences that influence them could contribute to more informed, coherent and effective regional policies and prevention program development.


Assuntos
Consumo de Bebidas Alcoólicas/legislação & jurisprudência , Atitude , Dirigir sob a Influência/legislação & jurisprudência , Licenciamento/legislação & jurisprudência , Adolescente , Adulto , Análise de Variância , Canadá , Dirigir sob a Influência/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários , Adulto Jovem
6.
Accid Anal Prev ; 100: 44-52, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28088034

RESUMO

Alcohol ignition interlock programs for offenders aim to reduce recidivism among convicted drink drivers. This study presents an evaluation of Nova Scotia's interlock program implemented in 2008 in order to assess its effectiveness to reduce impaired driving and to help identify areas for improvement. Data used include conviction and crash records of individual participants; provincial monthly counts of alcohol-related charges, convictions and fatal and serious crashes; and interlock logged events. Methods used include descriptive statistics, survival analysis, time series and logistic regression analysis. With respect to specific deterrence (i.e., preventing recidivism) there was a 90% reduction in recidivism among voluntary participants since participation in the interlock program and a 79% reduction after these participants exited from the program. With respect to general deterrence (i.e., referring to a preventative effect on the entire population of drivers in Nova Scotia) there were temporary decreases in the numbers of alcohol-related charges (13.32%) and convictions (9.93%) and a small significant decrease in the number of fatal and serious injury alcohol-related crashes, following the implementation of the program. The evidence suggests the interlock program was better at preventing harm due to alcohol-impaired driving than the alternative of not using the interlock program. Recommendations were formulated supporting the continuation of the interlock program in Nova Scotia.


Assuntos
Consumo de Bebidas Alcoólicas/legislação & jurisprudência , Condução de Veículo/legislação & jurisprudência , Dirigir sob a Influência/legislação & jurisprudência , Equipamentos de Proteção/estatística & dados numéricos , Intoxicação Alcoólica/prevenção & controle , Condução de Veículo/estatística & dados numéricos , Dirigir sob a Influência/prevenção & controle , Feminino , Humanos , Masculino , Nova Escócia , Desenvolvimento de Programas , Análise de Sobrevida
7.
Accid Anal Prev ; 99(Pt A): 236-241, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27984814

RESUMO

OBJECTIVES: This study evaluates prevalence and trends in drugged driving in Canada based on multiple indicators collected from the Road Safety Monitor (RSM) and Canada's National Fatality Database maintained by the Traffic Injury Research Foundation (TIRF). The objective of this paper is to identify the state of drug-positive driving in Canada, as well as to make comparisons with data from previous years to determine whether changes have occurred. METHODS: Available data from the RSM on self-reported drugged driving behaviours were collected and analyzed using multivariate techniques in various years spanning from 2002 to 2015. Data from TIRF's National Fatality Database from 2000 to 2012 were also analyzed to evaluate trends and prevalence of drugs in fatally injured drivers across Canada. Additionally, differences among drugged drivers with respect to gender and age were studied. RESULTS: Analyses of the RSM data and of the National Fatality Database showed that, as a whole, the prevalence of drugged driving has remained relatively stable over the past decade, with some changes noticed in specific years for some drug types. Specifically from the RSM, there was a 62.5% increase from the 1.6% of drivers reporting driving within two hours of using marijuana in 2013 to 2.6% in 2015. The analyses of the fatality data revealed a 16.9% increase in the percentage of fatally injured drivers testing positive for drugs between 2000 and 2012 (from 33.56% to 39.24%). Cocaine-positive fatally injured drivers increased from 3.6% in 2000 to 6.2% in 2012. Similarly, marijuana-positive fatally injured drivers increased from 12.8% in 2000 to 19.7% in 2012. Results showed varying characteristics with respect to gender and age among self-reported and fatally injured drugged drivers. CONCLUSIONS: Drugged driving behaviours remain prevalent among Canadian drivers and drugs continue to be found in over one-third of tested fatally injured drivers. Although self-reported behaviours have neither decreased nor increased overall in the past decade according to RSM data, with the exception of driving within two hours of using marijuana, data from fatally injured drivers reveal that small, but significant increases in some behaviours have occurred.


Assuntos
Acidentes de Trânsito/tendências , Condução de Veículo/estatística & dados numéricos , Segurança/estatística & dados numéricos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Adulto , Canadá/epidemiologia , Canabinoides/efeitos adversos , Cannabis/efeitos adversos , Cocaína/efeitos adversos , Comorbidade , Bases de Dados Factuais , Feminino , Humanos , Masculino , Prevalência , Autorrelato
8.
J Safety Res ; 58: 67-77, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27620936

RESUMO

INTRODUCTION: The goals of this study were to analyze possible trends of fatal and serious injuries related to vulnerable road users in Canada (pedestrians, cyclists and motorcyclists) from 1990 to 2012 and the role of alcohol and drugs in these cases. Drugs have rarely been documented with respect to vulnerable road users. METHOD: The Traffic Injury Research Foundation's National Fatality and Serious Injury Databases and the Public Health Agency of Canada's Canadian Hospitals Injury Reporting and Prevention Program databases were used. Numbers and rates of fatalities and serious injuries among vulnerable road users were analyzed and regression models were used to assess changes over time. RESULTS: The analyses show that while the absolute number of fatalities and the rate per 100,000 population among vulnerable road users may be decreasing, no such trends are apparent when looking at the proportions of these road user fatalities out of all motor-vehicle fatalities. The trend for the proportion of motorcyclist fatalities is significantly increasing (coef.=0.16, p<0.001). The elderly (76years or older) are overrepresented among pedestrian fatalities, and serious injuries (they represent 18.5% of all pedestrian fatalities but only 5.8% of the population), while those 15years or younger are overrepresented among cyclists (they represent 23.3% of cyclist fatalities but 19.5% of the population), and those 16 to 25years old are overrepresented among motorcyclists (27.2% of motorcyclists fatalities and 13.6% of population). Alcohol and drug use among fatally injured vulnerable road users were significant problems, especially among pedestrians. Among fatally injured pedestrians tested for alcohol and drugs, 39.7% and 43.4% tested positive, respectively. CONCLUSIONS: With the promotion of walking and cycling as forms of exercise and the popularity of motorcycling, the safety of vulnerable road users is an important issue. The results corroborate previous research and extend our understanding about the influence of alcohol and drugs in vulnerable road user injuries. PRACTICAL APPLICATIONS: These findings can help better inform prevention and mitigation initiatives for vulnerable road users.


Assuntos
Acidentes de Trânsito/estatística & dados numéricos , Consumo de Bebidas Alcoólicas/epidemiologia , Dirigir sob a Influência/estatística & dados numéricos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Ferimentos e Lesões/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Ciclismo/estatística & dados numéricos , Canadá/epidemiologia , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Pessoa de Meia-Idade , Motocicletas/estatística & dados numéricos , Pedestres/estatística & dados numéricos , Ferimentos e Lesões/mortalidade , Adulto Jovem
9.
J Safety Res ; 56: 33-9, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26875163

RESUMO

INTRODUCTION: In 1996, the Ministry of Transportation in Ontario (MTO) implemented the Group Education Session (GES), which is a mandatory license renewal program for drivers aged 80 and older. This study describes an evaluation of the GES to assess its impact on road safety in Ontario, as well as its effect on the safety of individual drivers who participated in the program. METHODS: Time series analysis of senior driver records both before and after implementation of the GES, and logistic regression and survival analysis examining senior driver records prior to, and following, their participation in the GES. RESULTS: Using time series analysis there is some evidence to suggest that the GES had a positive impact on road safety. According to the other analyses, participation in the GES is associated with a decrease in the odds of collisions and convictions, regardless of whether drivers pass their first attempt of the knowledge test or not. In addition, failing the first road test and/or having demerit points are strong indicators of future collision and conviction involvement. DISCUSSION: Results from this evaluation suggest that the GES has had a protective effect on the safety of senior drivers. PRACTICAL APPLICATIONS: The findings and discussion will help MTO improve the GES program and provide insights to other jurisdictions that have, or are considering, introducing new senior driver programs.


Assuntos
Acidentes de Trânsito/estatística & dados numéricos , Condução de Veículo/educação , Condução de Veículo/legislação & jurisprudência , Licenciamento/legislação & jurisprudência , Idoso de 80 Anos ou mais , Humanos , Conhecimento , Modelos Logísticos , Ontário , Resolução de Problemas , Avaliação de Programas e Projetos de Saúde , Segurança , Análise de Sobrevida
10.
Int J Inj Contr Saf Promot ; 23(2): 179-88, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-25563805

RESUMO

This study's goal was to establish the prevalence of driving under the influence of alcohol (DUI) and alcohol consumption patterns among drivers in Cali, Colombia, in 2013. A cross-sectional study based on a roadside survey using a stratified and multi-stage sampling design was developed. Thirty-two sites were chosen randomly for the selection of drivers who were then tested for blood alcohol concentration (BAC) and asked to participate in the survey. The prevalence of DUI was 0.88% (95% confidence intervals [95% CI] 0.26%-1.49%) with a lower prevalence when BAC was increasing. In addition, a higher prevalence was found during non-typical checkpoint hours (1.28, 95% CI -0.001%-0.03%). The overall prevalence is considered high, given the low alcohol consumption and vehicles per capita. Prevention measures are needed to reduce DUI during non-typical checkpoints and ongoing studies are required to monitor the trends and enable the assessment of interventions.


Assuntos
Acidentes de Trânsito/estatística & dados numéricos , Consumo de Bebidas Alcoólicas/epidemiologia , Intoxicação Alcoólica/epidemiologia , Dirigir sob a Influência/estatística & dados numéricos , Adolescente , Adulto , Idoso , Concentração Alcoólica no Sangue , Testes Respiratórios , Colômbia/epidemiologia , Estudos Transversais , Dirigir sob a Influência/legislação & jurisprudência , Dirigir sob a Influência/prevenção & controle , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Inquéritos e Questionários , Fatores de Tempo , Adulto Jovem
11.
Accid Anal Prev ; 87: 43-9, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26647015

RESUMO

In many jurisdictions, drivers convicted for the first-time of driving while impaired by alcohol undertake a risk assessment that will determine the severity of sanctions and the remedial measures they must follow as requisites for re-licensing. There is uncertainty inherent in the assessment of risk for recidivism, however, many offenders feel unfairly assessed and discommoded by the decision-making process and its consequences. The objective of this qualitative study was to gain insight into the perspectives of offenders regarding re-licensing decision making and sanctioning. Specifically, in focus groups first-time offenders and recidivists were probed as to whether they favoured erring on the side of road safety in decision making, with its consequent greater risk of false positive assessments, or erring on the side of maintaining driving privileges, with its consequent greater risk of false negative assessments. In general, participants preferred a higher probability of false negative vs. false positive assessments. Most cited the consequences of sanctions and remedial measures as too severe to impose them on potentially low-risk drivers, as the assessment and monitoring protocols' limitations could lead to non-equitable treatment. At the same time, recidivists evoked a greater preference for a higher probability of false positive assessments compared to first-time offenders, as they believed that recidivism was more likely to follow a first conviction than did first-time offenders. This information can be useful for a more comprehensive and societally coherent exercise of DWI prevention policies.


Assuntos
Acidentes de Trânsito/legislação & jurisprudência , Condução de Veículo/legislação & jurisprudência , Condução de Veículo/psicologia , Cultura , Dirigir sob a Influência/legislação & jurisprudência , Dirigir sob a Influência/psicologia , Licenciamento/legislação & jurisprudência , Adulto , Tomada de Decisões , Dirigir sob a Influência/prevenção & controle , Estudos de Avaliação como Assunto , Feminino , Grupos Focais , Humanos , Masculino , Política Pública , Recidiva , Medição de Risco/legislação & jurisprudência , Medição de Risco/estatística & dados numéricos
12.
Accid Anal Prev ; 75: 264-71, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25528439

RESUMO

Off-road vehicles (ORVs; this includes snowmobiles, all-terrain vehicles or ATVs and dirt bikes) were once used primarily for work and travel. Such use remains common in Canada, although their recreational use has also gained popularity in recent years. An epidemiological injury profile of ORV users is important for better understanding injuries and their risk factors to help inform injury prevention initiatives. The Traffic Injury Research Foundation (TIRF) partnered with the Public Health Agency of Canada (PHAC) to analyze the epidemiology of ORV-related injuries. The primary aim was to assess crashes and injuries in Canada, including the extent of alcohol involvement. Secondly, the burden of injury among children and teen ORV drivers in Canada, as well as passengers, was investigated. Descriptive and inferential epidemiological statistics were generated using the following data sources: first, TIRF's National Fatality Database, which is a comprehensive, pan-Canadian, set of core data on all fatal motor vehicle crashes; second, TIRF's Serious Injury Database, which contains information on persons seriously injured in crashes; and, third, PHAC's Canadian Hospitals Injury Reporting and Prevention Program (CHIRPP), a surveillance system currently operating in the emergency departments of some pediatric and general hospitals across Canada. Exposure data have been used in the analyzes where available. Between 1990 and 2010, fatality rates increased among ATV and dirt bike operators. The fatality rate among snowmobilers declined during this period. Of particular concern, among fatally injured female ATV users, children aged 0-15 years comprised the highest proportion of any age group at 33.8%. Regarding alcohol use, among fatally injured snowmobile and ATV/dirt bike operators tested for alcohol, 66% and 55% tested positive, respectively. Alcohol involvement in adult ORV crashes remains an important factor. In light of the growing popularity of ORVs, prevention and mitigation measures are required to address this issue.


Assuntos
Acidentes de Trânsito/mortalidade , Acidentes de Trânsito/estatística & dados numéricos , Veículos Off-Road/estatística & dados numéricos , Ferimentos e Lesões/epidemiologia , Adolescente , Adulto , Canadá/epidemiologia , Criança , Pré-Escolar , Bases de Dados Factuais , Serviço Hospitalar de Emergência , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Pessoa de Meia-Idade , Recreação , Fatores de Risco
13.
Accid Anal Prev ; 62: 238-47, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24184967

RESUMO

The objective of this study was to evaluate the impact of Winnipeg's photo enforcement safety program on speeding, i.e., "speed on green", and red-light running behavior at intersections as well as on crashes resulting from these behaviors. ARIMA time series analyses regarding crashes related to red-light running (right-angle crashes and rear-end crashes) and crashes related to speeding (injury crashes and property damage only crashes) occurring at intersections were conducted using monthly crash counts from 1994 to 2008. A quasi-experimental intersection camera experiment was also conducted using roadside data on speeding and red-light running behavior at intersections. These data were analyzed using logistic regression analysis. The time series analyses showed that for crashes related to red-light running, there had been a 46% decrease in right-angle crashes at camera intersections, but that there had also been an initial 42% increase in rear-end crashes. For crashes related to speeding, analyses revealed that the installation of cameras was not associated with increases or decreases in crashes. Results of the intersection camera experiment show that there were significantly fewer red light running violations at intersections after installation of cameras and that photo enforcement had a protective effect on speeding behavior at intersections. However, the data also suggest photo enforcement may be less effective in preventing serious speeding violations at intersections. Overall, Winnipeg's photo enforcement safety program had a positive net effect on traffic safety. Results from both the ARIMA time series and the quasi-experimental design corroborate one another. However, the protective effect of photo enforcement is not equally pronounced across different conditions so further monitoring is required to improve the delivery of this measure. Results from this study as well as limitations are discussed.


Assuntos
Acidentes de Trânsito/prevenção & controle , Condução de Veículo/legislação & jurisprudência , Aplicação da Lei/métodos , Fotografação/métodos , Acidentes de Trânsito/estatística & dados numéricos , Condução de Veículo/estatística & dados numéricos , Humanos , Modelos Logísticos , Manitoba
14.
Accid Anal Prev ; 48: 297-302, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22664694

RESUMO

While a general decreasing trend in the number of persons killed in a traffic crash involving a drinking driver has occurred in Canada since the 1980s, it is evident that much of this decrease occurred in the 1990s. Since 2002, less progress has been made as the number of persons killed in crashes involving drinking drivers remains high. To better understand the current situation, this paper describes trends in drinking and driving in Canada from 1998 to 2011 using multiple indicators based on data collected for the Traffic Injury Research Foundation's (TIRF) Road Safety Monitor (RSM), the National Opinion Poll on Drinking and Driving, and trends in alcohol-related crashes based on data collected for TIRF's national Fatality Database in Canada. There has been a continued and consistent decrease in the number of fatalities involving a drinking driver in Canada. This remains true when looking at the number of fatalities involving a drinking driver per 100,000 population and per 100,000 licensed drivers. This decreasing trend is also still apparent when considering the percentage of persons killed in a traffic crash in Canada involving a drinking driver although less pronounced. Data from the RSM further show that the percentage of those who reported driving after they thought they were over the legal limit has also declined. However, regardless of the apparent decreasing trend in drinking driving fatalities and behaviour, reductions have been relatively modest, and fatalities in crashes involving drivers who have consumed alcohol remain high at unacceptable levels.


Assuntos
Acidentes de Trânsito/tendências , Consumo de Bebidas Alcoólicas/tendências , Condução de Veículo/estatística & dados numéricos , Acidentes de Trânsito/mortalidade , Consumo de Bebidas Alcoólicas/psicologia , Condução de Veículo/psicologia , Canadá , Humanos , Opinião Pública
15.
Accid Anal Prev ; 41(5): 1104-11, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19664453

RESUMO

Most jurisdictions in North America have some version of graduated driver licensing (GDL). A sound body of evidence documenting the effectiveness of GDL programs in reducing collisions, fatalities and injuries among novice drivers is available. However, information about the relative importance of individual components of GDL is lacking. The objectives of this study are to calculate a summary statistic of GDL effectiveness and to identify the most effective components of GDL programs using a meta-analytic approach. Data from 46 American States, the District of Columbia and 11 Canadian jurisdictions are used and were obtained from the Fatality Analysis Reporting System (FARS) for the U.S. and from Transport Canada's Traffic Accident Information Database (TRAID) for Canada. The timeframe of this evaluation is 1992 through 2006, inclusive. Relative fatality risks and their 95% confidence intervals were calculated using fatality counts and population data for target and comparison groups, both in a pre-implementation and post-implementation period in each jurisdiction. The target groups were 16-, 17-, 18- and 19-year-old drivers. The comparison group was 25-54-year-old drivers. The relative fatality risks of all jurisdictions were summarized using the random effects DerSimonian and Laird model. Meta-regression using Restricted Maximum Likelihood (REML) and Markov Chain Monte Carlo (MCMC) Gibbs sampling was also conducted. Strong evidence in support of GDL was found. GDL had a positive and significant impact on the relative fatality risk of 16-year-old drivers (reduction of 19.1%). Significant effects were found for meta-regression models with 16-, 18- and 19-year-old drivers. These effects include length of night restriction in the learner stage, country, driver education in the learner stage and in the intermediate stage, whether night restrictions are lifted in the intermediate stage for work purposes, passenger restriction in the intermediate stage, whether passenger restrictions in the intermediate stage are lifted if passengers are family members, and whether there is an exit test in the intermediate stage. In conclusion, several GDL program components have an important effect on the relative fatality risk of novice drivers. These results help understand how such effects are achieved.


Assuntos
Exame para Habilitação de Motoristas/legislação & jurisprudência , Avaliação de Programas e Projetos de Saúde , Adolescente , Adulto , Condução de Veículo/legislação & jurisprudência , Canadá , Intervalos de Confiança , Bases de Dados Factuais , Avaliação Educacional , Escolaridade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Método de Monte Carlo , América do Norte , Análise de Regressão , Risco , Fatores de Risco , Estatística como Assunto , Estados Unidos , Adulto Jovem
16.
J Safety Res ; 40(1): 25-31, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19285583

RESUMO

INTRODUCTION: This article summarizes the main findings from a study designed to examine the legal process in Canada as it applies to alcohol-impaired driving from the point of view of Crown prosecutors and defense counsel, and to identify evidentiary or procedural factors that may impact the legal process, the rights of the accused, and interactions of all parts in the legal process. METHOD: The data in this study were collected by means of a survey that was mailed out to the population of Crown prosecutors and defense counsel in Canada. In total, 765 prosecutors and 270 defense lawyers or an estimated 33% of all Canadian prosecutors and 15% of defense lawyers completed and returned the questionnaire. The "systems improvement" paradigm was used to interpret the findings and draw conclusions. Such an approach acknowledges the importance of the context in which countermeasures are implemented and delivered and the structures or entities used to deliver countermeasures to a designated target group. RESULTS: Results on type of charges and breath alcohol concentration, caseload, case outcomes, case preparation time, conviction rate at trial and overall conviction rate, reasons for acquittals and time to resolve cases are described. DISCUSSION: The findings from this national survey suggest that there are important challenges within the criminal justice system that impede the effective and efficient processing of impaired driving cases. Some of these challenges occur as a function of practices and policies, while others occur as a function of legislation. IMPACT ON INDUSTRY: This study illustrates that a "system improvements" approach that acknowledges the importance of all elements of the criminal justice system and the interaction between those elements, can be beneficial in overcoming the alcohol-impaired driving problem.


Assuntos
Acidentes de Trânsito/estatística & dados numéricos , Intoxicação Alcoólica/epidemiologia , Condução de Veículo/estatística & dados numéricos , Acidentes de Trânsito/legislação & jurisprudência , Adulto , Condução de Veículo/legislação & jurisprudência , Canadá , Coleta de Dados , Feminino , Humanos , Advogados/estatística & dados numéricos , Masculino
17.
Accid Anal Prev ; 40(6): 1982-6, 2008 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19068304

RESUMO

The objective of this paper is to describe and interpret the results from a public opinion poll about elderly drivers to provide useful information regarding future challenges related to elderly drivers. The introduction describes demographic developments, factors affecting elderly drivers, crash rates of elderly drivers and characteristics of crashes of elderly drivers. This information is used to provide a context to interpret the results of the public opinion poll. A total of 1238 drivers completed the interview, which required an average of approximately 15 min per respondent. It was administered by telephone to a random sample of Canadian drivers by Opinion Search Inc., in September 2007. Criteria for inclusion were having a valid driver's license and having driven in the past 30 days. Data were weighted according to region, gender and age to avoid bias. Univariate frequency distributions, their 95% confidence intervals and Chi-square statistics were calculated taking account of the stratified and weighted sampling design. Also, multivariate logistic regression was performed, accounting for the design effects of the used sampling design. Lower levels of concern about the issue of elderly drivers were found among the public at large and especially among elderly drivers. While general support for actions to protect elderly drivers was high, elderly drivers were less supportive for a measure requiring them to complete training to maintain their driving privileges. The results from this survey are contrasted against what is known from the literature about the issue of elderly drivers and conclusions regarding future challenges are drawn.


Assuntos
Acidentes de Trânsito/prevenção & controle , Exame para Habilitação de Motoristas , Condução de Veículo , Opinião Pública , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Canadá , Estudos Transversais , Feminino , Avaliação Geriátrica , Humanos , Entrevistas como Assunto , Masculino , Pessoa de Meia-Idade
18.
J Safety Res ; 39(4): 375-81, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18786424

RESUMO

INTRODUCTION: Aggressive driving encompasses a continuum of behaviors that range from extreme acts, such as shootings, to less severe manifestations, such as arguments and gestures. It is clear from the available data that aggressive driving is not uncommon and very risky. However, little is known about the opinions and practices of drivers. The purpose of this study was to help bridge these gaps. METHODS: The data were gathered by means of a public opinion poll among a representative sample of 1,201 Canadian drivers. Univariate frequency distributions and 95% confidence intervals were calculated and logistic regression and generalized linear latent models were used to summarize the data. RESULTS: It was found that the issue of aggressive driving is a significant one as a considerable percentage of drivers admits to it. The results coming from the logistic regression and the generalized linear latent model suggest that male and younger drivers are more likely to behave aggressively in traffic and that behaving more aggressively is associated with a history of traffic tickets. DISCUSSION: When gauging people's attitudes, opinions, and behaviors, it becomes clear that aggressive driving is a considerable problem. There also seems to be a need for a better understanding of which specific behaviors respondents associate with the generic term "aggressive driving." IMPACT ON INDUSTRY: Results from this study further emphasize the need of increasing the aggressive driving knowledge base.


Assuntos
Agressão/psicologia , Condução de Veículo/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Adulto , Canadá/epidemiologia , Coleta de Dados , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Prevalência , Opinião Pública , Fatores de Risco
19.
Accid Anal Prev ; 40(5): 1667-73, 2008 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-18760094

RESUMO

The objective of this paper is to develop a model that can help explain the public's level of concern associated with six dangerous driving behaviours (drinking and driving, speeding, distracted driving, using a cell phone while driving, fatigued or drowsy driving, and using illegal drugs while driving). Understanding the genesis of concern can be useful in addressing it and leveraging it to improve safe driving. Building on a risk perception model that was developed previously, the study investigated the relationship between the level of concern about the unsafe driving behaviours and the perceived level of concern of others about the dangerous driving behaviours, the perception of the prevalence of the dangerous driving behaviours, the perception of the level of risk imposed by these dangerous driving behaviours, and the perception of the severity of injuries that can result from them. Data from two independent samples were modeled using multidimensional scaling and logistic regression analysis. Both samples come from telephone surveys; one was administered to a random sample of 750 drivers in the province of Ontario, Canada in November 2006, the other to a random sample of 1201 drivers across Canada in September 2006. Two dimensions in particular were found to fit the data well: perceived risk and the perceived level of concern of others. The results from these analyses are summarized using a perceptual map. The relevance of such a map is illustrated by explaining the factors that impact levels of concern regarding several of the unsafe driving behaviours.


Assuntos
Condução de Veículo , Assunção de Riscos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Consumo de Bebidas Alcoólicas , Telefone Celular , Fadiga , Humanos , Modelos Logísticos , Pessoa de Meia-Idade , Ontário , Transtornos Relacionados ao Uso de Substâncias , Adulto Jovem
20.
J Safety Res ; 39(3): 303-9, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18571572

RESUMO

INTRODUCTION: There is evidence suggesting that the problem of fatigued or drowsy driving is an important contributor to road crashes. However, not much is known about public perceptions of the issue. The purpose of this study was to obtain information on attitudes, opinions, and professed practices related to fatigued or drowsy driving. METHODS: The data were gathered by means of a public opinion poll among a representative sample of 750 Ontario drivers. RESULTS: A majority of drivers (58.6%) admitted that they occasionally drive while fatigued or drowsy. Of greater importance, 14.5% of respondents admitted that they had fallen asleep or "nodded off" while driving during the past year. Nearly 2% were involved in a fatigue or drowsy driving related crash in the past year. Respondents were also asked about measures they take to overcome fatigue or drowsiness. Results indicate that relatively ineffective measures such as opening the window or playing music are the most popular; the most effective preventive measure--taking a rest--is the least popular. DISCUSSION: The prevalence of the behavior, coupled with the ineffective prevention measures favored by the public suggest there is a need for increasing their level of awareness and knowledge about the problem. IMPACT ON INDUSTRY: Results from this study further emphasize the importance of increasing the fatigued and drowsy driving knowledge base and the need to educate the public about it.


Assuntos
Acidentes de Trânsito/prevenção & controle , Condução de Veículo/psicologia , Fadiga/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Estudos Transversais , Feminino , Humanos , Entrevistas como Assunto , Masculino , Ontário , Opinião Pública
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