Tractor rollover fatalities, analyzing accident scenario

Profile and risk factors in farmer injuries: a review based on Haddon matrix and 5 E's risk reduction strategy

Farmers are considered a high-risk group for intentional and unintentional injuries. This review identified significant risk factors for agricultural injuries in farmers and explored injury prevention countermeasures based on the literature. Therefore, CiteSpace software was used to analyze the relevant literature in this field. Additionally, we identified both key risk factors and countermeasures using the Haddon matrix and the 5 E's risk reduction strategies conceptual framework, respectively. The risk factors were identified from four categories (host, agent, physical environment, and social environment) corresponding to three phases (pre-event, event, and post-event). Interventions of 5 E's risk reduction strategies including education, engineering, enforcement, economic, and emergency response have been proven effective in preventing injuries or reducing their severity. Our findings provide a comprehensive foundation and research direction for the study and prevention of injuries among farmers.

Severity of Agricultural Injuries and Its Economic Consequences in Border Belt of Gurdaspur District of Punjab, India

OBJECTIVES

This study collected data related to agricultural injuries, analyzed their causes, and suggested possible remedial actions. Few studies from developing countries have investigated this important topic. Such investigations are extremely important and are required to frame national policies.

METHODS

A well-designed structured form was developed to collect and evaluate data on agricultural incidents, their causes, the severity of injuries, and possible prevention methods. The authors followed a door-to-door survey methodology to collect data with the help of local village leaders.

RESULTS

Less educated and older adults in the age group 31 to 45 years were more prone to agricultural incidents (p < .05). The mean age of the victims was 35.02 years (95% CI 32.7 to 37.3); 124 (91.18%) of the victims were men; and 21 (15.4%) of the cases were fatal. Tractor rollovers caused most of the deaths. Chaff cutters were responsible for most of the incidents that required amputation. Eighteen (45%) of the chaff-cutter incidents occurred in the evening between 3:00 PM and 6:00 PM, and 12 (30%) of these incidents occurred due to fatigue.

CONCLUSIONS

The authors strongly recommend that rollover protective structures (ROPS) for tractors and seat belts should be made mandatory in India. Public guidelines emphasizing mandatory higher education for farmers and a model curriculum for both schools and colleges that focuses on the safety of rural populations should be developed. Special training should be provided on the safe operation of machinery and a definitive work - rest schedule should be followed to prevent fatigue and protect agricultural workers from incidents.

Global Patterns of Agricultural Machine and Equipment Injuries- A Systematic Literature Review

OBJECTIVES

Agriculture is the one of the hazardous industries in the world. Though there is significant investment in agricultural safety, machine injuries continue to be the leading cause of agriculture injuries worldwide. The objective of this study was to provide a comprehensive literature review on global patterns in agricultural machine injuries and establish a framework for future research aimed at addressing safety concerns in the agriculture sector.

METHODS

The existing scholarship on farm machine injuries can be categorized into three main areas: a) farming machine/equipment injuries, b) factors associated with these injuries, and c) injury patterns.

RESULTS

Overall, the findings highlight that farm tractors are the primary source of injuries for both fatal and non-fatal incidents regardless of region. Other common sources of injuries were harvesting machinery and hand/power tools in Asia, ATVs in North America and woodworking machinery in Europe. Inadequate training in operating farm equipment was reported as the most likely factor contributing to machine-related injuries. Lastly, the patterns of injuries vary based on the interaction between humans and machinery. For instance, rollovers often result in severe head and fracture injuries, while thresher incidents can lead to amputation of hands, arms, and other body parts.

CONCLUSION

Addressing these injuries by implementing safety protocols will not only enhance the well-being of farm workers but potentially attract more workers to the sector, which is currently experiencing labor shortages due to machine-related injuries.

Warning and active steering rollover prevention control for agricultural wheeled tractor

Tractor rollover is regarded as the most fatal incident in agricultural production, but some of which can be avoided by timely anti-rollover warning and active control. There have been a lot of researches on the tractor rollover model building and rollover protective structure designing but few on the anti-rollover control. The purpose of this study is to develop a cheaper and practical anti-rollover control system based on active steering technique and to prove the efficiency of the proposed scheme for the wheeled tractors. A three-degree-of-freedom rollover dynamics model including automatic steering system is established. A control scheme by adjusting the roll angle to keep the stability based on the adaptive sliding mode control is proposed with the estimated lateral velocity according to the feedback correction principle. Front wheel angle tracking controller is designed adopting internal model control (IMC) theory. Simulation results exhibit that the active anti-rollover control can calculate the stability index in real time and can keep it within the stable range by adjusting the front steering wheel angle. It is prospective for the proposed scheme to provide a valuable reference to reduce tractor rollover accidents.

A Review of Current and Historical Research Contributions to the Development of Ground Autonomous Vehicles for Agriculture

In this study, a comprehensive overview of the available autonomous ground platforms developed by universities and research groups that were specifically designed to handle agricultural tasks was performed. As cost reduction and safety improvements are two of the most critical aspects for farmers, the development of autonomous vehicles can be of major interest, especially for those applications that are lacking in terms of mechanization improvements. This review aimed to provide a literature evaluation of present and historical research contributions toward designing and prototyping agricultural ground unmanned vehicles. The review was motivated by the intent to disseminate to the scientific community the main features of the autonomous tractor named BOPS-1960, which was conceived in the 1960s at the Alma Mater Studiorum University of Bologna (UNIBO). Jointly, the main characteristics of the modern DEDALO unmanned ground vehicle (UGV) for orchard and vineyard operations that was designed recently were evaluated. The basic principles, technology and sensors used in the two UNIBO prototypes are described in detail, together with an analysis of UGVs for agriculture conceived in recent years by research centers all around the world.

Work-related injuries among farm workers engaged in agricultural operations in India: a cross-sectional study

PURPOSE

We aim to investigate nature, risk factors as well as magnitude of farm injuries and fatalities among agricultural workers in rural India.

METHODS

An Agricultural Injury Study (AIS) was conducted using selected 1703 villages in eight states of rural India based on statistical consideration using unstructured proforma for 3086 victims/respodents, who were mostly agricultural workers or farmers. Injury incidence rate (IIR) was estimated per 1000 machines/tools per year for farm machinery and hand tools injuries, and per 100 000 workers per year for other sources. Questions about the injuries involved in farming tasks were used.

RESULTS

About 36.2% fatalities were caused by farm machinery that involves tractors. The IIR per year of farm machinery, hand tools and injuries due to other sources were 3.2 per 1000 machines, 0.7 per 1000 tools and 77 per 100 000 workers, respectively. Correlation between number of injury-prone agricultural machines and number of farm machinery injury is r=0.80 (number of injuries increases with increase in number of machines). The χ²=72.53; p<0.01 of number of hand tools and number of farm hand tools-related injuries, that is, they are statistically significant.

CONCLUSION

Exposures to agricultural machineries during farming operations can result in injuries confounding that may be fatal or non-fatal. Mapping down the cause and taking preventive measure to reduce the losses are of major concern. Also, customised safety programme as well as legislative awareness is needed to be raised for the higher injury incidence group.

Dual-task interference while receiving information on a head mounted display and manual tracking with and without auditory warnings

BACKGROUND

Dual-task interference is a concern when users attempt to use head mounted displays (HMD) while performing seated manual control tasks. Auditory warnings of information displayed on the HMD may or may not assist users while multi-tasking.

OBJECTIVE

In this study, we investigated the dual-task interference of words, to be remembered later, presented on a HMD and motor control in a manual tracking task. The word presentations were warned or not warned with auditory signals and the impact of audio warnings were examined.

METHODS

Participants were required to perform five tasks: (1) a compensatory tracking task performed alone, (2) a word memory task performed alone, (3) a tracking and word memory task, (4) a word memory task with words preceded by audial signals, and (5) a tracking and word memory task with words preceded by audial signals. In addition, in the dual-tasks, half of the word presentations were paired with directions changes in the tracking task to test for immediate perceptual interference.

RESULTS

There were significant dual task costs for both mean tracking error and later word recall. Additionally, participants took significantly longer to respond to motion changes paired with word presentations than motion changes not paired with word presentations. However, the impact of auditory warnings on tracking performance was nuanced.

CONCLUSION

Even with an in field of view transparent HMD momentary and sustained cognitive dual-task interference remains. Reaction times are affected most in the worst case scenario, when task critical events occur at the same time as a text message.

APPLICATION

The use of HMDs in time critical manual control tasks (such as operating machinery) should be limited. The use of audial warnings to alert operators to information displayed on an HMD requires further research; it may disrupt appropriate or natural task ordering.

Promoting farming sustainability: The effects of age, training, history of accidents and social-psychological variables on the adoption of on-farm safety behaviors

INTRODUCTION

Occupational safety and health (OSH) have a remarkable impact on the sustainability of firms and organizations. However, the sustainability perspective has often focused primarily on environmental and economic concerns, leaving key social and workplace aspects, such as OSH, underemphasized. The link between all these aspects is particularly relevant in agriculture.

METHOD

In the present study we analyzed the paths by which the worker's age, participation in safety training, and previous history of accidents and near misses can influence the adoption of safety behaviors in agriculture through the mediation of attitudes towards safety and perceived behavioral control. Three hundred and ten Italian agricultural operators were administered an ad-hoc questionnaire.

RESULTS

Having attended safety training courses, having been exposed to previous accidents and near misses, and age showed a positive association with the adoption of on-farm safety behaviors, through the mediation of perceived behavioral control. In more detail, participation in training courses and age showed a positive association with perceived behavioral control, while the previous history of accidents and near misses showed a negative association with behavioral control. In turn, perceived behavioral control was positively associated with the adoption of safety behaviors.

CONCLUSIONS

The present study focused on the chain of events leading to the adoption of on-farm safety behaviors, which can prevent an accidents, pointing out the more critical variables and the level at which they intervene, identifying possible areas of targeted interventions. Practical applications: Implications for the development of targeted interventions may deal with: (a) training activities increasing farm operators' sense of control over their safety, (b) older farmers involvement in mentoring initiatives, and (c) systematic recording and use of previous history of accidents and near misses as inputs for training activities to discuss their implications for on-farm safety.

Energy Absorption in Actual Tractor Rollovers with Different Tire Configurations

In order to better understand the complexities of modern tractor rollover, this paper investigates the energy absorbed by a Roll-Over Protective Structure (ROPS) cab during controlled lateral rollover testing carried out on a modern narrow-track tractor with a silent-block suspended ROPS cab. To investigate how different tractor set-ups may influence ROPS and energy partitioning, tests were conducted with two different wheel configurations, wide (equivalent to normal ‘open field’ operation) and narrow (equivalent to ‘orchard/vineyard’ operation), and refer to both the width of the tires and the corresponding track. Dynamic load cells and displacement transducers located at the ROPS-ground impact points provided a direct measurement of the energy absorbed by the ROPS cab frame. A trilateration method was developed and mounted onboard to measure load cell trajectory with respect to the cab floor in real-time. The associated video record of each rollover event provided further information and opportunity to explain the acquired data. The narrow tire configuration consistently subjected the ROPS cab frame to more energy than the wide tire arrangement. To better evaluate the influence of the ROPS cab silent-blocks in lateral rollover, static and dynamic tests were performed. The results confirm that tires influence the energy partition significantly and that further understanding of silent-blocks’ dynamic performance is warranted.

Retrofitting Agricultural Self-Propelled Machines with Roll-Over and Tip-Over Protective Structures

In the agricultural sector, the loss of stability related to the use of self-propelled agricultural machinery (SPAM) has caused and continues to cause accidents, often with fatal outcomes. The probability of occurrence of this risk can be reduced by acting on various aspects, but above all the presence of a protective structure is necessary. Depending on the machine, the protective structure can be a roll-over protective structure (ROPS), or a tip-over protective structure (TOPS). Hence, to reduce this gap, a reverse engineering approach and virtual engineering methods were applied starting from the analysis of harmonized standards actually in force, with the goal of providing both a reference procedure to be used in the risk assessment analysis of SPAM’s protective structures and technical information to manufacture and install protective structure on old agricultural machinery. Two representative case studies were used to validate the procedure by means of finite element method (FEM) analyses and computer aided design (CAD) prototyping. Results show that the proposed approach can represent a useful indication for the safety update of this type of machinery.

Agricultural Tractor Roll-Over Related Fatalities in Italy: Results from a 12 Years Analysis

In Italy, about 160 fatal accidents per year have occurred recently in agriculture, most of them involving agricultural machinery. The most frequent cause of fatal events is the tractor overturning. One of the opportunities to monitor the trend of agricultural tractors fatal overturning is a meticulous search for information on the numerous web portals, at national and local level. In fact, in their information purposes are also included the recording, practically in real time, of significant details about each fatal event, such as the place of the accident, the year, the month and the day of the week of occurring, the victim’s age, gender and nationality, etc. This article is describing the results of the monitoring of fatal tractor overturning accidents in the period of 2008–2019 in Italy. In the 12 years of the survey, 1414 fatal accidents were recorded, most of them occurring in the spring and summer months. The region with the highest cumulative number of fatal events was Tuscany (143). The majority (58.8%) of the victims were over 60, while 71.4% of accidents occurred during field work. Most (57.6%) of the tractors involved in the fatal events did not have rollover protective structures (ROPS), while 19.4% were equipped with a two-post foldable front roll-bar, which, however, was in the lowered position at the time of the accident. In most cases, the tractors involved were obsolete and in poor maintenance conditions, and did not comply with general and specific laws on work safety. To improve the situation, the introduction of the tractor training certificate for the drivers and the periodical inspection for tractors, as well as the issuing of significant financial supports to encourage the replacement of the old models with modern more safe models, are the most effective actions to be put into practice.

Comparison of the epidemiology and injury profile among injured patients involved in special purpose vehicle-related incidents in South Korea

Injuries caused by mobile machinery or special purpose vehicles (SPVs) can lead to high socio-medical cost and fatality. In this descriptive study, we compared the epidemiology and injury profile of injured patients involved in SPVs-related incidents. We analyzed a nationwide database of SPV-related injured patients between January 2011 and December 2016. Injured patients were classified into three groups: pedestrian, motor vehicle occupant (MVO), and SPV operator groups. Of 1,419 cases, the highest number of SPV-related injured patients were found in the age group 40-59 years (671 cases, 47.3%) and at transport area (771 cases, 54.3%). The injury was most severe in the SPV operator group. The lower extremities were the most common fracture site, and intrathoracic injury was the most common visceral regions for SPV-related injured patients. SPV operator could lead to fatal intrathoracic injuries.

Safety Vision of Agricultural Tractors: An Engineering Perspective Based on Recent Studies (2009–2019)

The high rate of injuries occurring in agricultural activities is of major concern in most countries, despite the ever-increasing efforts made at normative levels. In particular, the use of agricultural tractors is recognized as the most hazardous activity for farmers due to the large number of fatalities occurring every year. The aim of the present study was to investigate the recent developments in research activities dealing with tractor safety. For this purpose, a systematic literature review was carried out, taking into account engineering journal papers appearing in Scopus in the 2009–2019 period and focusing on tractor safety. As a result, 79 documents were selected and analyzed based on both their type (e.g., conceptual or empirical studies) and specific targets. They were then classified and discussed in accordance with a reference framework representing the main issues of agricultural tractor safety: mechanical hazards, protective devices, command and control, other hazards, ergonomics, information, conformity, and user behavior. The results of this analysis brought to light the need for a more human-centered approach when dealing with tractor safety. In addition, the lack of a reliable framework of technical standards was also stressed. Overall, despite the limitations due to the selection criteria, this study represents the first systematic literature review depicting the status of tractor safety in the engineering field, providing a basis for further research on the emerging themes outlined.

Risk Profiling from the European Statistics on Accidents at Work (ESAW) Accidents' Databases: A Case Study in Construction Sites

The number of accidents and victims in the construction sector has not decreased significantly despite the increasingly stricter laws and regulations. The analysis of accidents, as well as their root causes and determinants can certainly contribute to the development of more effective preventive interventions. The present study proposes a methodology for the analysis and synthesis of data provided by accidents statistics with the goal of defining specific risk profiles based on the accidents determinants, their variables, and how they interact with one another in influencing the occurrence of an accident. For this purpose, a procedure capable of extracting this type of information from the European Statistics on Accidents at Work (ESAW) database was developed. In particular, data processing and aggregation are performed by means of the synergic use of the Matrix of Descriptors (MoD) and cluster analysis. To validate such a procedure, the analysis of fatalities due to electrical shocks was carried out. The results achieved allowed us to elicit valuable information for both safety managers and decision makers. The proposed methodology can facilitate a systemic analysis of accidents databases reducing the difficulties in managing reports and accident statistics.

Thinking Ahead of the Tractor: Driver Safety and Situation Awareness

Objective: Situation awareness has been identified as a key skill in maintaining safety in high-risk, dynamic industries. However, there is a lack of research evaluating situation awareness requirements and error types in agricultural operators. The aim of this study was to explore situation awareness among farmers in the United Kingdom (UK) when operating heavy agricultural machinery. Method: The study used an online qualitative survey to collect data in three main areas: situation awareness requirements, factors impacting situation awareness, and the safety context for UK farmers. A total of 57 farmers completed the survey, responding to seven open-ended questions. Data were analyzed using directed content analysis. Results: The results indicate the importance of situation awareness for safe and efficient work practice in farming. Situation awareness requirements span the machinery system, including awareness of internal cab systems and the status of implements attached to the external machine. Farmers needed to map and monitor the surrounding conditions in addition to considering personal requirements. Data also indicated the impact of a range of factors, including system-based elements such as blind spots, individual factors such as level of fatigue, and issues related to a lack of knowledge and failure to think ahead on the maintenance of situation awareness. Conclusion: This research highlights the situation awareness requirements for operating agricultural machinery in complex and dynamic environments. By taking a human factors approach, utilizing design and practical interventions, it may be possible to both support and enhance farmer situation awareness and, therefore, reduce errors and adverse incidents.