The impact of traffic sign deficit on road traffic accidents in Nigeria

This study assesses the impact of traffic sign deficit on road traffic accidents in Nigeria. The participants were 720 commercial vehicle drivers. While simple random sampling was used to select 6 out of 137 federal highways, stratified random sampling was used to select six categories of commercial vehicle drivers. The study used qual-dominant mixed methods approach comprising key informant interviews; group interviews; field observation; policy appraisal and secondary literature on traffic signs. Result shows that the failure of government to provide and maintain traffic signs in order to guide road users through the numerous accident black spots on the highways is the major cause of road accidents in Nigeria. The study argues that provision and maintenance of traffic signs present opportunity to promoting safety on the highways and achieving the sustainable development goals.     

Accidental injuries among the elderly within the Vienna community: Epidemiology,risk factors and preventive measures

Abstract

Unintentional injuries ('accidents’) among elderly people are a significant burden in public health because such accidents happen frequently and because the proportion of older age groups in the population will continue to rise during the coming decades. One aim of this study, which was done in Vienna, the capital of Austria, was to broaden the preventive concept, adding lifestyle and living conditions to already well-known risk factors following the health promotion approach. Furthermore, characteristics that predispose older residents to accidents should be identified in order to design preventive measures for reducing injuries in this age group.

809 interviews with people 60 years of age and over were conducted, concerning accidents, outcomes of accidents, physical fitness, drug intake, type of house or dwelling, equipment in the household incorporating safety features, psychological well-being and social relations. The information collected was used to draw cross-sectional comparisons between participants who reported having experienced at least one accident in the previous 12 months and those who did not. Furthermore, the accident incidents were classified into 2 groups: incidents without injuries and injurious accidents. The latter served as a base for the epidemiology of injuries for people 60 years of age and over within the Vienna community.

20% of all senior citizens suffer at least one unintentional injury every year, in addition to which 8% experience critical incidents (mostly falls) without injury. Most accidents occur at home or involve pedestrians in public traffic areas. Over 90% of all accidents are falls, and 20% result in fractures. The most important risk factors for accidents in the elderly are gender, increasing age, poor physical fitness and low physical activity, the type of household and household equipment, poor psychological well-being, low income and loneliness.

The findings regarding falls suggest some possible opportunities for reducing the risk of falls by improving buildings and dwellings of the elderly. A promising attempt at practical implementation of these findings is being conducted by the Vienna-based Austrian Institute for Home and Leisure Safety in cooperation with the Vienna City Council. These two organizations are implementing a long-term program that aims at mobilizing institutions and organizations involved in working with the elderly.     

Vehicle head restraint positioning knowledge and behaviours in a sample of Irish drivers

A correctly positioned vehicle head restraint (HR) can reduce whiplash injury risk in collisions, however, HRs are often sub-optimally positioned. The primary aim of this study was to investigate vehicle HR position and driver knowledge of correct HR positioning in an Irish population. Secondary aims were to investigate the associations with driver age, gender and vehicle age. Data collection involved HR measurement and a driver questionnaire (n = 110). Just 27% of drivers had optimal HR positioning, while 30% had poor or marginal positioning. Newer vehicles (<5 years old) had better positioned HR in the horizontal plane (p = 0.036), than older vehicles. Younger drivers (<30 years) were more likely to have poorer positioning of HR (p = 0.002), than the 30 years or over group. Females were more likely to have better vertical positioning of their HR (p = 0.003) than males. Driver knowledge of correct position was variable, and not associated with actual HR position, with 65% knowing the correct vertical positioning standard but only 27% identifying the correct horizontal position. Many drivers have inadequately positioned HR, which needs to be addressed by improved vehicle design and public education.     

Bayesian hierarchical statistics for traffic safety modelling and forecasting

Abstract

Road traffic accidents (RTAs) represent a serious problem globally causing losses in many ways. Gulf Cooperation Council (GCC) countries have a high rate of RTAs compared to other high-income countries. In this study, a Bayesian hierarchical model was utilized for accident counts forecasting in Abu Dhabi, United Arab Emirates. This work will help traffic planners and decision makers to enhance road safety levels and decrease accident fatality rate. Accidents data along 5 years from 2008 to 2012 at 143 road sites in Abu Dhabi with 5,511 accidents were used. The proposed model considered a number of covariates; speed limit, type of road, number of lanes, type of area, weather, time, surface condition and seat belt usage. Five sites with the highest numbers of accidents were studied. Year 2012 was used to validate predictions. The model prediction accuracy was 72%.     

Effect of driver,roadway, collision,and vehicle characteristics on crash severity: a conditional logistic regression approach

The aim of the study is to examine the factors that appear to have a higher potential for serious injury or death of drivers in traffic accidents in Turkey, such as collision type, roadway surface, vehicle speed, alcohol/drug use, and restraint use. Driver crash severity is the dependent variable of this study with two categories, fatal and non-fatal. Due to the binary nature of the dependent variable, a conditional logistic regression analysis was found suitable. Of the 16 independent variables obtained from Turkish police accident reports, 11 variables were found most significantly associated with driver crash severity. They are age, education level, restraint use, roadway condition, roadway type, time of day, collision location, collision type, number and direction of vehicles, vehicle speed, and alcohol/drug use. This study found that belted drivers aged 18–25 years involving two vehicles travelling in the same direction, in an urban area, during the daytime, and on an avenue or a street have better chances of survival in traffic accidents.     

Investigation of adolescent accident predictive variables in hilly regions

The study aims to determine the significant personal and environmental factors in predicting the adolescent accidents in the hilly regions taking into account two cities Hamirpur and Dharamshala, which lie at an average elevation of 700--1000 metres above the mean sea level (MSL). Detailed comparisons between the results of 2 cities are also studied. The results are analyzed to provide the list of most significant factors responsible for adolescent accidents. Data were collected from different schools and colleges of the city with the help of a questionnaire survey. Around 690 responses from Hamirpur and 460 responses from Dharamshala were taken for study and analysis. Standard deviations (SD) of various factors affecting accidents were calculated and factors with relatively very low SD were discarded and other variables were considered for correlations. Correlation was developed using Kendall's-tau and chi-square tests and factors those were found significant were used for modelling. They were – the victim's age, the character of road, the speed of vehicle, and the use of helmet for Hamirpur and for Dharamshala, the kind of vehicle involved was an added variable found responsible for adolescent accidents. A logistic regression was performed to know the effect of each category present in a variable on the occurrence of accidents. Though the age and the speed of vehicle were considered to be important factors for accident occurrence according to Indian accident data records, even the use of helmet comes out as a major concern. The age group of 15–18 and 18–21 years were found to be more susceptible to accidents than the higher age groups. Due to the presence of hilly area, the character of road becomes a major concern for cause of accidents and the topography of the area makes the kind of vehicle involved as a major variable for determining the severity of accidents.     

Road accidents involving bicycles: configurations and injuries

This study analyzed the most common types of accident involving bicycles and compared the frequency of injuries. The data source was the database of German In-Depth Accident Study (GIDAS). Cases consist of bicycles and their riders involved in accidents between 2000 and 2010. In most collisions, the bicycle impacted with a car. The percentage of injured bicyclists was higher in collisions with a heavy vehicle and decreased when the bicycle impacted with lighter vehicles. A high percentage of injured bicyclists in single accidents was observed; the most severe injury was more frequently to head and extremities. Accidents involving a car and a bicycle with the right of way in a bicycle path represented about 20% of involved and injured bicyclists. The ten most frequent configurations represented about 60% of involved and injured bicyclists. These results contribute to understand the dangerous scenarios for bicyclists and to suggest preventive actions.     

如何控制和保障施工安全的经验和体会

结合施工实践,通过分析公路施工中常见安全事故的类别及事故发生的原因,着重从施工安全控制的角度介绍如何控制和保障施工安全的经验和体会,以提高施工的安全水平.     

Seatbelt use among drivers in an urban city in Nigeria: an observational study

Studies from parts of Nigeria reported low compliance with seatbelt. This study sought to establish driver seatbelt use in Enugu, Nigeria by gender, vehicle type/use and time of day. Observations were done day and night at randomly selected locations. Data were analysed with SPSS version 15. Differences in response were checked with chi-square for trend. Confidence interval was 95% and P value < 0.05 was regarded as significant. Average compliance was 37.6% for the 510 males (85%) and 90 females (15%) observed. It was 74.8% in the day and 0.3% at night. Among males, 218 (42.7%) wore seatbelt while 9 (10%) females did. For commercial drivers 159 (65.2%) complied while 68 (19.1%) private drivers did. Truck drivers had 100% compliance while sports utility vehicle drivers had the lowest (18.8%). There is poor seatbelt compliance in Enugu, Nigeria and need for educational campaigns and stricter enforcement.     

Investigation of pedestrian crashes using multiple correspondence analysis in India

Abstract

Pedestrian safety is of growing concern with an increasing number of traffic accidents, especially in developing economies like India. In 2017, there were 20,457 pedestrian fatalities in India. Pedestrian crashes have also become a key concern in the state of Tamilnadu, India, due to the high percentage of deaths. If the available datasets are large and complex, identifying key factors is a challenging task. In this study, Multiple Correspondence Analysis (MCA), an exploratory data analysis technique was used to explore the roadway, traffic, crash, and pedestrian-related variables influencing pedestrian crashes. This study used the data from Government of Tamilnadu Road Accident Traffic Management System (RADMS) database, to analyse accident data of nine years (2009–2017) related to pedestrian crashes. The results of the study show that crashes occurring on the express highways on a multilane road are often associated with hit-and-run behaviour among drivers. Factors such as lighting conditions, location, pedestrian behaviour, crossings, and physical separation are also significantly contributing to pedestrian crashes. The key advantage of MCA is that it identifies a possible association between various contributing factors. The findings from this study will be useful for state transport authorities to improve countermeasures for mitigating pedestrian crashes and fatalities.     

Road traffic crashes at night-time: characteristics and risk factors

Abstract

The study was to examine the nature and risk factors associated with road traffic crashes at night in Ghana and identify potential measures to control them. Crash and injury data for the period 2013-2017 were analyzed. The fatality index and fatal crash ratio measures were employed to assess the severity of injuries among traffic participants. Statistical analysis was carried out for the variables using contingency tables and the chi-square (χ²) tests to assess statistical significance. Generally, night-time traffic crashes resulted in severer injury outcomes than crashes in the hours of daylight (χ²(2)=292.7, p?<?0.001). The relative risk of death in a night traffic crash was 1.3 times that during the daytime. The risk of death was highest among pedestrians (44%) and motorcyclist (18%) compared to bus/mini-bus occupants (16%) and car occupants (11%) and the observed percentage differences were significant (χ²(14)=2303.2, p?<?0.001). Most of the collisions (67%) occurred at the early hours of the night, between 18:00 and 22:00?hours. Poor night visibility coupled with poor visual guidance on roads are the key contributory risk factors associated with night travels. Policies must be geared towards provision of functioning street lights in built-up areas, road line markings, delineators and signage for the highways and arterial roads.     

Who are the Stakeholders Now? An Empirical Examination of the Mitchell, Agle, and Wood Theory of Stakeholder Salience

Two environmental accidents in the mining industry provide the context for this study of the Mitchell, Agle, and Wood (1997, The Academy of Management Review 22, 853–886) analysis of stakeholder salience. I examine the reactions of two stakeholder groups: shareholder response is examined in terms of changing share returns and risk; management response through change in disclosure. I find the two decision-makers reacted at different times. Management responded to the first accident, though not the second. Shareholders responded to the second accident alone. My findings support the Mitchell, Agle, and Wood (MAW) assertion that stakeholder status is impermanent, and determined through the eyes of the decision-maker.     

The incidence of home accidents is going down in Belgium

The objective of the present study was to estimate the incidence of home accidents in Belgium in 2002 and to compare them with the results of 1996. The Belgian network of general practitioners (GPs) is a national network of GPs who collect and report data on selected conditions, including home accidents. The data about home accidents were recorded by 181 GPs in 1996 and by 150 GPs in 2002. The standardized incidence of home accidents decreased from 2935 per 100 000 inhabitants in 1996 (95% CI 2846 – 3026) to 2669 in 2002 (95% CI 2588 – 2751). This corresponds to a decrease of 9% (p < 0.001). A decrease of 14% was observed in the Flemish Community (p < 0.001). The reduction was very important (36%) among women aged between 75 and 89 years (p < 0.001). In the French community the decrease was not significant. The incidence of home accidents observed in general practice decreased in Belgium, especially in the Flemish Community.     

Consumer ethics,materialism and material satisfaction: A study on Turkish adolescent consumers

The aim of this study is to reveal the differences among consumer ethics, materialistic attitudes and material satisfaction of the adolescents across the socio‐economic level and gender in Turkey. The sample of the study is formed by randomly selected high schools students (n = 350) in Ankara. The results indicated that consumer ethics, materialistic attitudes and material satisfaction varied according to socio‐economic level (p < .01). Among materialistic attitudes and material satisfaction, only a significant difference is found on consumer ethics across the gender. There is no significant difference among gender on materialistic attitudes and material satisfaction. In general, males’ ethical beliefs were found lower than the females.     

Post encroachment time threshold identification for right-turn related crashes at unsignalized intersections on intercity highways under mixed traffic

Abstract

Unsignalized intersections in developing countries experience many serious conflicts between cross-traffic due to indiscipline traffic manoeuvrability. Historically, Post Encroachment Time (PET) has gained attention as a proximal indicator to analyze crossing conflicts. However, identifying an appropriate PET threshold to classify critical conflicts for highly heterogeneous traffic scenario is still an unexplored area. Consequently, this study proposes a novel approach of PET threshold identification with proof of application by collecting data from ten intersections located on four-lane intercity highways in the National Capital Region (NCR), India. Both crossing conflicts and right-turn related crash data (for the left-hand drive) are collected. Their correlations are thoroughly studied for each PET threshold using a quantitative technique considering all and individual vehicle categories. Finally, a qualitative analysis is done by ranking the sites based on cumulative PET and related crashes to verify the proposed quantitative technique. A PET threshold of 1?s is obtained from both the techniques which can be used to identify critical conflicts for unsignalized intersections located on four-lane intercity highways. The proposed methodology will serve as an alternative, faster and effective tool to evaluate the hazardousness of unsignalized intersections located on intercity highways under highly heterogeneous traffic condition.     

人机共驾事故侵权责任与保险制度的法经济分析

作为人工智能落地的重点领域，自动驾驶技术未来将大幅减少交通事故，降低保险赔付。但自动驾驶汽车难以快速跨越人机共驾阶段，实现完全无人驾驶。机动车事故侵权损害赔偿与保险赔付具有显著协同效应，人机共驾汽车事故的侵权责任分配影响着未来交通事故的保险应对，而互动良好的事故保险可以强化侵权法效力，降低人机共驾汽车事故侵权责任不确定性。法经济分析具有独特的责任和风险视角，把人机共驾汽车事故成本细化为直接成本、风险分散成本和风险管理成本，为实现驾驶人、生产人和保险人之间的利益均衡提供工具借鉴。针对人机共驾汽车事故，应该以事故成本为目标调整归责原则、以过错为界限定位侵权法与交强险的功能，并利用无过错保险调整交强险。