Related Experiment Video
Updated: Dec 21, 2025

09:35
Measurement of the Hand Transmitted Vibration of the Human Hand Arm System During Operation of a Hand Tractor
Published on: June 16, 2021
4.7K
Risk Assessment of Tractor-Related Hazards Based on Accident Cases.
Journal of Agricultural Safety and Health
|May 21, 2020
Summary
Tractor accidents cause over 100 deaths annually in South Korea. This study identified 54 hazards, finding carelessness and inattention require mitigation for effective accident prevention.
Area of Science:
- Agricultural Safety
- Risk Assessment
- Public Health
Background:
- Tractor accidents result in over 100 fatalities yearly in South Korea.
- National Institute of Agricultural Sciences (NAS) uses accident surveys for prevention strategies.
Purpose of the Study:
- Identify hazards causing tractor accidents.
- Assess risks to develop effective prevention strategies.
- Quantify potential reductions in accidents and fatalities.
Main Methods:
- Analyzed 588 tractor accident cases from NAS surveys.
- Conducted expert review using a Delphi survey for hazard identification.
- Estimated hazard frequency and Number of Equivalent Fatalities (NEF).
- Evaluated risks using a frequency-NEF (FN) diagram.
Main Results:
- Identified 54 distinct tractor accident hazards.
- Estimated frequency and NEF values for each hazard.
- No hazards fell into the 'unacceptable' risk area.
- Two hazards, carelessness and not looking ahead, were in the 'as low as reasonably practicable' area.
Conclusions:
- Carelessness and inattention are critical hazards requiring mitigation.
- The risk assessment method provides quantitative insights for accident prevention.
- Policymakers, specialists, and researchers can utilize this method to reduce tractor accidents and fatalities.
Keywords:
Equivalent fatalityFrequency estimationHazard identificationRisk assessmentTractor accidentMore Related Videos
Related Concept Videos
Survey Safety
321
Surveying near highways, rough terrain, or power lines involves significant risks. Working along highways is particularly dangerous and requires the use of warning signs and flagmen. It is safest to avoid working directly on roads and use offsets whenever possible. When highway work is unavoidable, it must follow all safety guidelines. Surveyors should wear bright clothing, such as orange reflective vests, to ensure visibility to motorists, coworkers, and hunters. In construction zones, wearing...
321
Hazard Ratio
469
The hazard ratio (HR) is a widely used measure in clinical trials to compare the risk of events, such as death or disease recurrence, between two groups over time. It reflects the ratio of hazard rates—the instantaneous risk of the event occurring—between a treatment group and a control group. This measure provides valuable insights into the relative effectiveness of a treatment by assessing how the risk of an event differs between the two groups.
For example, in a clinical trial...
For example, in a clinical trial...
469
Hypothesis Test for Test of Independence
6.8K
The test of independence is a chi-square-based test used to determine whether two variables or factors are independent or dependent. This hypothesis test is used to examine the independence of the variables. One can construct two qualitative survey questions or experiments based on the variables in a contingency table. The goal is to see if the two variables are unrelated (independent) or related (dependent). The null and alternative hypotheses for this test are:
H0: The two variables (factors)...
H0: The two variables (factors)...
6.8K
Hazard Rate
338
The hazard rate, also known as the hazard function or failure rate, is a statistical measure used to describe the instantaneous rate at which an event occurs, given that the event has not yet happened. From a probabilistic perspective, it represents the likelihood that a subject will experience the event in a very small time interval, conditional on surviving up to the beginning of that interval. In terms of frequency, the hazard rate can be viewed as the ratio of the number of events to the...
338
Relative Risk
1.6K
Relative risk (RR) is a statistical measure commonly used in epidemiology to compare the likelihood of a particular event occurring between two groups. This metric is important for evaluating the relationship between exposure to a specific risk factor and the probability of a particular outcome. It plays a crucial role in medical research, public health studies, and risk assessment. Relative risk quantifies how much more (or less) likely an event is to occur in an exposed group compared to an...
1.6K
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
323
Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
323

