As aircraft have become more reliable, humans have played a progressively more important causal role in aviation accidents. Consequently, a growing number of aviation organizations are tasking their ...safety personnel with developing accident investigation and other safety programs to address the highly complex and often nebulous issue of human error. Yet, many safety professionals are illequipped to perform these new duties.
The purpose of the present book is to remedy this situation by presenting a comprehensive, userfriendly framework to assist practitioners in effectively investigating and analyzing human error in aviation. Coined the Human Factors Analysis and Classification System (HFACS), its framework is based on James Reason's (1990) well-known "Swiss cheese" model of accident causation. In essence, HFACS bridges the gap between theory and practice in a way that helps improve both the quantity and quality of information gathered in aviation accidents and incidents.
The HFACS framework was originally developed for, and subsequently adopted by, the U.S. Navy/Marine Corps as an accident investigation and data analysis tool. The U.S. Army, Air Force, and Coast Guard, as well as other military and civilian aviation organizations around the world are also currently using HFACS to supplement their preexisting accident investigation systems. In addition, HFACS has been taught to literally thousands of students and safety professionals through workshops and courses offered at professional meetings and universities. Indeed, HFACS is now relatively well known within many sectors of aviation and an increasing number of organizations worldwide are interested in exploring its usage. Consequently, the authors currently receive numerous requests for more information about the system on what often seems to be a daily basis.
When sea level humans go to high altitude, they have to increase their red blood cells in order to compensate for the environment hypobaric hypoxia. What are the normal levels of hemoglobin, ...hematocrit, and red blood cells for each altitude? What are the specific variations in each civilization? We have over 43 years of work at the high Altitude Pulmonary and Pathology Institute, on this subject. We established the normal values for the city of La Paz, Bolivia at 3522m, in 3373 but it was poorly understood and other centers applied it without considering the variations of altitude. One can take different parameters to evaluate where the top cutoff limit for polyerythrocythemia is and likewise where anemia is present at high altitude. We proposed likewise a classification: Mild, Moderate and Severe, depending on the amount of red blood cells present. The limits where one can speak of polyerythrocythemia, depend on where the symptomatology (if present) appears. But it can also be the standard deviation. The Gauss curve of distribution can also be visually analyzed to set the limits.
This study is focusing on improvement a new Group Personal Accident (GPA) model by study the weakness and strength of existing model. Judging from the gap in the existing Group Personal Accident in ...mostly oil & gas Company, essentially this research was conducted with a focus scope on Oil and Gas Company in Malaysia for improvement Service Quality of Takaful Company and more beneficial on Safety at workplace to employee.
Road telematics and driver assistance systems offer a real opportunity to aid mobility and road safety. However, they also raise numerous questions. Problems related to the design and evaluation of ...intelligent driver support systems (IDSSs) and social perspectives related to their large scale introduction may only be fully addressed from a multi-disciplinary viewpoint. People from both engineering and social sciences, should be involved and this book provides such knowledge from both a human and social factors perspective.
According to long-term observations of drivers - participants in road accidents, the new interpretation of the generally accepted definition of post-accident syndrome is proposed and the criteria for ...this concept defined. The methods and ways of removing the driver out of the post-accident syndrome are formulated. The classification of post-accident syndrome is formulated according to statistics analysis. The new term “psychological severity of the accident” was proposed for discussion.
With the rapid development of China's chemical industry, although researchers have developed many methods in the field of chemical safety, the situation of chemical safety in China is still not ...optimistic. How to prevent accidents has always been the focus of scholars' attention.
Based on the characteristics of chemical enterprises and the Heinrich accident triangle, this paper developed the organizational-level accident triangle, which divides accidents into group-level, unit-level, and workshop-level accidents. Based on 484 accident records of a large chemical enterprise in China, the Spearman correlation coefficient was used to analyze the rationality of accident classification and the occurrence rules of accidents at different levels. In addition, this paper used TF-IDF and K-means algorithms to extract keywords and perform text clustering analysis for accidents at different levels based on accident classification. The risk factors of each accident cluster were further analyzed, and improvement measures were proposed for the sample enterprises.
The results show that reducing unit-level accidents can prevent group-level accidents. The accidents of the sample enterprises are mainly personal injury accidents, production accidents, environmental pollution accidents, and quality accidents. The leading causes of personal injury accidents are employees' unsafe behaviors, such as poor safety awareness, non-standard operation, illegal operation, untimely communication, etc. The leading causes of production accidents, environmental pollution accidents, and quality accidents include the unsafe state of materials, such as equipment damage, pipeline leakage, short-circuiting, excessive fluctuation of process parameters, etc. CONCLUSION: Compared with the traditional accident classification method, the accident triangle proposed in this paper based on the organizational level dramatically reduces the differences between accidents, helps enterprises quickly identify risk factors, and prevents accidents. This method can effectively prevent accidents and provide helpful guidance for the safety management of chemical enterprises.
About 1.5 million Australians are shift workers. Shift work is associated with adverse health, safety and performance outcomes. Circadian rhythm misalignment, inadequate and poor-quality sleep, and ...sleep disorders such as sleep apnoea, insomnia and shift work disorder (excessive sleepiness and/or insomnia temporally associated with the work schedule) contribute to these associations. Falling asleep at work at least once a week occurs in 32%-36% of shift workers. Risk of occupational accidents is at least 60% higher for non-day shift workers. Shift workers also have higher rates of cardiometabolic diseases and mood disturbances. Road and workplace accidents related to excessive sleepiness, to which shift work is a significant contributor, are estimated to cost $71-$93 billion per annum in the United States. There is growing evidence that understanding the interindividual variability in sleep-wake responses to shift work will help detect and manage workers vulnerable to the health consequences of shift work. A range of approaches can be used to enhance alertness in shift workers, including screening and treating sleep disorders, melatonin treatment to promote sleep during the daytime, and avoidance of inappropriate use of sedatives and wakefulness-promoters such as modafinil and caffeine. Short naps, which minimise sleep inertia, are generally effective. Shifting the circadian pacemaker with appropriately timed melatonin and/or bright light may be used to facilitate adjustment to a shift work schedule in some situations, such as a long sequence of night work. It is important to manage the health risk of shift workers by minimising vascular risk factors through dietary and other lifestyle approaches.
As rush hour came to a close on the evening of May 25, 1950, one of Chicago's new fast, colorful, streamlined streetcars—known as a Green Hornet—slammed into a gas truck at State Street and 62nd ...Place. The Hornet's motorman allegedly failed to heed the warnings of a flagger attempting to route it around a flooded underpass, and the trolley, packed with commuters on their way home, barreled into eight thousand gallons of gasoline. The gas erupted into flames, poured onto State Street, and quickly engulfed the Hornet, shooting flames two hundred and fifty feet into the air. More than half of the passengers escaped the inferno through the rear window, but thirty-three others perished, trapped in front of the streetcar's back door, which failed to stay open in the ensuing panic. It was Chicago's worst traffic accident ever—and the worst two-vehicle traffic accident in US history. Unearthing a forgotten chapter in Chicago lore, The Green Hornet Streetcar Disaster tells the riveting tale of this calamity. Combing through newspaper accounts as well as the Chicago Transit Authority's official archives, Craig Cleve vividly brings to life this horrific catastrophe. Going beyond the historical record, he tracks down individuals who were present on that fateful day on State and 62nd: eyewitnesses, journalists, even survivors whose lives were forever changed by the accident. Weaving these sources together, Cleve reveals the remarkable combination of natural events, human error, and mechanical failure that led to the disaster, and this moving history recounts them—as well as the conflagration's human drama—in gripping detail.
Summary
The link between sleepiness and the risk of motor vehicle accidents is well known, but little is understood regarding the risk of home, work and car accidents of subjects with insomnia. An ...international cross‐sectional survey was conducted across 10 countries in a population of subjects with sleep disturbances. Primary care physicians administered a questionnaire that included assessment of sociodemographic characteristics, sleep disturbance and accidents (motor vehicle, work and home) related to sleep problems to each subject. Insomnia was defined using the International Classification of Sleep Disorders (ICSD‐10) criteria. A total of 5293 subjects were included in the study, of whom 20.9% reported having had at least one home accident within the past 12 months, 10.1% at least one work accident, 9% reported having fallen asleep while driving at least once and 4.1% reported having had at least one car accident related to their sleepiness. All types of accident were reported more commonly by subjects living in urban compared to other residential areas. Car accidents were reported more commonly by employed subjects, whereas home injuries were reported more frequently by the unemployed. Car accidents were reported more frequently by males than by females, whereas home accidents were reported more commonly by females. Patients with insomnia have high rates of home accidents, car accidents and work accidents related to sleep disturbances independently of any adverse effects of hypnotic treatments. Reduced total sleep time may be one factor explaining the high risk of accidents in individuals who complain of insomnia.
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