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1.
Speed has been determined to be one of the most common contributing factors in vehicle crashes. This study explores vehicle speed as a factor in the causation of road traffic crashes, using the example of Ghana. It examines the effectiveness of various speed control measures, based on policereported traffic crashes in Ghana and published works on speed control measures in both industrialized and developing countries. In Ghana, pedestrians were the main victims of road traffic injuries. The dominant driver error assigned by traffic police was loss of control, with the underlying factor being excessive vehicle speeds. The ‘speed factor’ alone accounted for more than 50% of all Ghanaian road traffic crashes between 1998 and 2000. While the enforcement of speed limits by traffic police may not be affordable for most developing countries, rumble strips and speed humps were found to be effective on Ghanaian roads. Rumble strips installed on the main Accra-Kumasi highway reduced crashes by about 35% and fatalities by about 55%. Reducing vehicle speeds may be one of the most effective interventions to stem traffic crashes in low-income countries. However, setting lower speed limits is not an effective intervention without the traffic law enforcement resources to ensure that limits are followed. Developing countries must also look to other speed reduction measures such as speed bumps and rumble strips, roads that segregate high- and low-speed users, and technological solutions such as speed governors, as well as greater public awareness of the problem.  相似文献   

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Artificial neural networks (ANNs) have been widely used in predicting the severity of road traffic crashes. All available information about previously occurred accidents is typically used for building a single prediction model (i.e., classifier). Too little attention has been paid to the differences between these accidents, leading, in most cases, to build less accurate predictors. Hierarchical clustering is a well-known clustering method that seeks to group data by creating a hierarchy of clusters. Using hierarchical clustering and ANNs, a clustering-based classification approach for predicting the injury severity of road traffic accidents was proposed. About 6000 road accidents occurred over a six-year period from 2008 to 2013 in Abu Dhabi were used throughout this study. In order to reduce the amount of variation in data, hierarchical clustering was applied on the data set to organize it into six different forms, each with different number of clusters (i.e., clusters from 1 to 6). Two ANN models were subsequently built for each cluster of accidents in each generated form. The first model was built and validated using all accidents (training set), whereas only 66% of the accidents were used to build the second model, and the remaining 34% were used to test it (percentage split). Finally, the weighted average accuracy was computed for each type of models in each from of data. The results show that when testing the models using the training set, clustering prior to classification achieves (11%–16%) more accuracy than without using clustering, while the percentage split achieves (2%–5%) more accuracy. The results also suggest that partitioning the accidents into six clusters achieves the best accuracy if both types of models are taken into account.  相似文献   

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There is an ongoing debate in the literature on the development of small and medium enterprises (SMEs) in less developed countries (LDCs) on two issues: the survival of SMEs in the course of economic development and the importance of government promotion programs for SME development. This research paper aims to examine those issues empirically with Indonesian data. For this purpose, it develops and tests a set of hypotheses. It shows that both real gross domestic product per capita and government development expenditure (especially that used to finance SME development promotion programs) have positive impacts on SME growth. With this finding, the research argues that SMEs in LDCs can survive, and even grow in the long-run, for three main reasons: (a) they create a niche market for themselves, (b) they act as a “last resort” for the poor, and (c) they will grow along with large enterprises (LEs) because of their increasingly important production linkages with LEs in the form of subcontracting.
Tulus TambunanEmail:
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The objectives of this study were to examine the pattern and magnitude of deaths in road traffic crashes (RTCs) in Sindh province of Pakistan. This cross-sectional study used data obtained from government documents and content analysis of daily newspapers' reports on incidents of deaths in RTCs. Results showed that the total annual number of RTCs, fatal RTCs and deaths in RTCs were 2272 (+/-293), 1104 (+/-89) and 1321 (+/-136) respectively. On average, there were four deaths per day in RTCs. The victims were 85% male and the majority were between 15 and 49 years of age. Pedestrians, passengers, motorcyclists and drivers were most commonly the victims. Deaths in RTCs were double in rural areas compared to urban areas. The most common causes of fatal RTCs were by being hit by a vehicle, breakdown and collision of motor vehicles and speeding. The frequent involvement of the men of working age in RTCs may have serious social and economic implications; therefore, the prevention of RTCs, as far as possible, is imperative.  相似文献   

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Morocco has reformed its health systems according to the New Public Management (NPM) model. Despite several positive results of the refo, our account and analysis of events related to the reform, as a chronological narrative from 2002 to 2012, along with findings of a qualitative study and semi‐structured interviews reveal organizational dysfunction alongside an increase in managerial problems. The Moroccan case is symptomatic of situations in many developing countries. It raises questions about the relevance of NMP in these countries and about the institutional prerequisites for successful public reforms in particular. Copyright © 2016 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   

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This study aimed to identify factors associated with severe injury and mortality from road traffic accidents (RTA) among motorcycle and car users in southern Thailand. The data were obtained from the Office of Disease Prevention and Control, Thailand, for years 2008–2013. Chi-squared tests were used to assess associations between determinants and outcomes and these associations were then estimated after adjusting for possible confounding with other factors using logistic regression. Severe injury and mortality contributed 11.6% and 5% to RTA of motorcycle users, and 14.3% and 7.5% for car users. Among motorcycle users, male gender, older age, and not wearing a helmet increased severe injury and mortality rates, whereas drivers had more severe injuries than passengers. Older car users had higher severe injury and mortality rates, whereas not fastening seat belts had higher mortality. Safety device use should be made mandatory for both drivers and passengers. Male motorcycle users and the elderly should be focused on.  相似文献   

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The aim of this study is to identify environmental risk factors related to road accidents in children of Tehran. This case-control study was performed in 2013. The cases were injured pedestrians aged 5–15 who were admitted to major hospitals supervised by Tehran University of Medical Sciences. The sample size for the cases was 273 and for the control group was 546. For the completeness of the clusters, 7 extra persons in case (total = 280) and 14 persons (total = 560) in control group were included. The interference of confounding variables assessed through forward conditional logistic regression. Result shows occurrence of traffic accidents was significantly associate with the width of the alleys or (<5 m: OR = 8.4, 95% CI: 3.3–21.5; 5–8 m: OR = 4.7, 95% CI: 1.8–12.2), distance from home to school((<100 m: OR = 1.7, 95% CI: 1.0–2.8), existence of parking lot (OR = 1.5, 95% CI: 1.0–2.3), traffic congestion (OR = 4.1, 95% CI: 2.6–6.4), traffic speed (OR = 2.1, 95% CI: 1.3–3.2) and existence of pedestrian bridges(OR = 4.2, 95% CI: 2.6–6.8). In the light of the important role of environmental factors in the occurrence of child traffic accidents, alleviating structural risk factors in addition to education and enforcement need more systematic efforts and planning by policymakers and urban planners to attain pedestrian safety goals.  相似文献   

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Road traffic injuries in general and pedestrian injuries in particular are a major public health problem in Mexico, especially in large urban areas. Analysis of mortality and road crashes at the national level was done using routine data recorded on death certificates. Fatality rates for different age groups were estimated by region for the year 2000. These data were supplemented by a cross-sectional study of pedestrian injuries in Mexico City based on death certificates information for pedestrians who lived and died in Mexico City between 1994 and 1997. Participant observation of physical spaces where crashes occurred was carried out. The spaces were filmed and in-depth interviews of survivors conducted. Road traffic crashes were responsible for approximately 17,500 deaths in Mexico during 2000. The mean age of the victims was 37 years. Mexico lost an average of 30 years of productive life for each individual who died in a traffic crash – 525,000 years in 2000. An estimated 9500 (54.3%) of all fatalities were pedestrians, and for every pedestrian death there were 13 others who sustained nonfatal injuries requiring medical care. The overall crude mortality rate for pedestrian injuries in Mexico City was 7.14 per 100,000 (CI 6.85-7.42). A concentration of deaths was observed in 10 neighborhoods at specific types of street environments. The underlying factors included dangerous crossings and the absence or inadequacy of pedestrian bridges, as well as negative perceptions of road safety by pedestrians. In conclusion, this study demonstrates the importance of elucidating the underlying contextual determinants of pedestrian injuries.  相似文献   

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Injuries account for a large burden of mortality and morbidity in the State of Qatar. No comprehensive study has been conducted on all types of injuries in the State of Qatar. The objective of this study was to determine the trend in the number, incidence and pattern of injuries in the State of Qatar. This hospital-based study is a retrospective analysis of 53,366 patients treated at the accident and emergency and trauma centres for injuries during the period from 2006 to 2010. Injuries were determined according to the ICD 10 criteria. The details of the entire trauma patients who were involved in occupational/domestic injuries were extracted from the database of the Emergency Medical Services (EMS), Hamad Medical Corporation. Our results demonstrated that the rates of injury remained relatively stable in the State of Qatar over the five–year period. Those most at risk of injury were non-Qatari males who were below 30 years. Road traffic accidents (RTA) (36.7%) followed by falls causing back injuries (11.0%) were the most common types of injuries during the period. Most of the injuries occurred at the head for both males (17.7%) and females (13.5%); this was consistently the case across all of the age groups. The greatest proportion of RTA (21.2%), industrial machinery injuries (16.4%), construction injuries (15.5%), recreational sporting injuries (20.5%) and beach/sea/ocean injuries (15.0%) resulted in head injuries. Intervention efforts need to be aimed at reducing occupational injuries, RTA injuries and work–related hazards in the State of Qatar.  相似文献   

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This study aimed to identify the roles of laypeople at road traffic injuries (RTIs). A systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The key words of ‘laypeople’, ‘layman’, ‘layperson’, ‘bystander’, ‘first responder’, ‘lay first responder’, ‘road traffic’, ‘road traffic injury’, ‘crash injury’, ‘crash scene’, ‘emergency’, ‘trauma care’, and ‘prehospital trauma care’ were used in combination with the Boolean operators OR and AND. We did electronic search on Google Scholar, PubMed, ISI Web of Science, CINAHL, Science Direct, Scopus, ProQuest. Based on the reviewed studies, some factors such as cultural conditions, knowledge, relief agencies, and demographic factors affect the interventions of laypeople at the crash scene in functional areas. Regarding the permanent presence of people at the crash scene, the present study can provide an opportunity to reduce different side effects of RTIs imposed on the society.  相似文献   

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The extremely high cost of motor-vehicle accidents in public health leads to the necessity of a better injury data collection in the Accident and Emergency Hospital Departments. The ‘Asclepeion’ of Voula Hospital covers the southeastern suburban areas of the greater Athens area (1 000 000 population). The aim of this study is to present information on the pattern of injuries in Athens, in order to understand the magnitude of the problem and develop rational prevention programmes. Specially trained health visitors of the Emergency Department Injury Surveillance System (EDISS) interviewed in person every injured victim who was brought into the Emergency Service of the ‘Asclepeion’ of Voula Hospital. The study was performed during a 3-year period, from 1996 to 1998; 4564 persons were interviewed. Traffic accidents were more frequent on weekdays with a seasonal peak in July and among young Greeks (aged 25 – 34 years). The usual type of injuries seen in vehicle-accident victims were cerebral contusion and concussion, while in motorcycle-accident victims, head contusion and fractures. The most common reasons for the accident were excessive speed, poor condition of road, inattention, abstraction or drowsiness and drug effects. A total of 29.8% of motorcycle drivers and 5.7% of motorcycle passengers wore a helmet and 26.3% of car drivers and 14.1% of car passengers were using seatbelts. The identification of road traffic injury patterns can contribute to the development of injury prevention measures and guide rational preventive interventions that can reduce the incidence of these injuries. The EDISS system established at ‘Asclepeion’ of Voula Emergency Service can provide useful and accurate information about this serious and multidimensional problem of Greek Public Health.  相似文献   

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The extremely high cost of motor-vehicle accidents in public health leads to the necessity of a better injury data collection in the Accident and Emergency Hospital Departments. The 'Asclepeion' of Voula Hospital covers the southeastern suburban areas of the greater Athens area (1,000,000 population). The aim of this study is to present information on the pattern of injuries in Athens, in order to understand the magnitude of the problem and develop rational prevention programmes. Specially trained health visitors of the Emergency Department Injury Surveillance System (EDISS) interviewed in person every injured victim who was brought into the Emergency Service of the 'Asclepeion' of Voula Hospital. The study was performed during a 3-year period, from 1996 to 1998; 4564 persons were interviewed. Traffic accidents were more frequent on weekdays with a seasonal peak in July and among young Greeks (aged 25 - 34 years). The usual type of injuries seen in vehicle-accident victims were cerebral contusion and concussion, while in motorcycle-accident victims, head contusion and fractures. The most common reasons for the accident were excessive speed, poor condition of road, inattention, abstraction or drowsiness and drug effects. A total of 29.8% of motorcycle drivers and 5.7% of motorcycle passengers wore a helmet and 26.3% of car drivers and 14.1% of car passengers were using seatbelts. The identification of road traffic injury patterns can contribute to the development of injury prevention measures and guide rational preventive interventions that can reduce the incidence of these injuries. The EDISS system established at 'Asclepeion' of Voula Emergency Service can provide useful and accurate information about this serious and multidimensional problem of Greek Public Health.  相似文献   

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Abstract

Fatalities and injuries resulting from road traffic crashes is always a serious problem. The overall economic losses caused by road traffic crashes are beyond imagination. Including the economic cost of property damage, productivity loss, medical cost, travel delay time cost, legal cost and insurance cost, the total economic cost of traffic crashes in China in 2017 is calculated as 490.1 billion yuan (72.6 billion USD 2017), which is equivalent to 0.60% of the GDP. The cost of productivity loss accounts for the highest proportion of total economic cost, which is 72%. The second is the travel delay cost, accounting for 12% insurance cost, property damage cost and medical cost are followed. The more serious the injury, the higher the unit economic cost. The unit cost of a crash that caused only property damage is 11,274 yuan. The unit cost of a minor injured crash is 20,223 yuan. The highest unit economic cost is the unit cost of a fatal crash, which is 3,181,394 yuan. This study provides important insights into the cost-benefit analysis of China's road safety policies.  相似文献   

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目前,我国生态环境总体恶化的趋势尚未得到根本扭转,高消耗的增长方式导致生态退化。应按照科学发展观发展我国的循环经济,建立绿色国民经济核算体系,加速环保产业建设与管理,全面提高国民素质,促使循环经济得以健康发展。  相似文献   

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This study investigates the interrelationships between antecedents of importers' trust and commitment to their foreign suppliers in an Asian country. This area has been under-researched in comparison to exporters' behavioral perspectives as well as in comparison to developed countries. A theoretical model is developed based on theories of transaction cost (TC) and the internationalization process (IP), and studies examined regarding the context of relationship trust and commitment. The model is tested using SEM on a sample of 238 importers in Bangladesh. The findings suggest that importer trust leads to commitment but that foreign supplier's opportunistic inclination affects both their trust and commitment. Overall, the findings indicate that cultural similarity, effective communication, knowledge and experience, opportunism and environmental uncertainty are vital antecedents of trust and commitment. The findings have important implications for academics and practitioners.  相似文献   

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