The role of organizational and individual variables in aircraft maintenance performance

Aviation maintenance has been identified by the FAA as an area where better efficiency is needed to cope with ever increasing workloads. However, aviation maintenance has also been identified as one of the major causes of accidents. Consequently, if further efficiencies are to be achieved, they cannot come at the cost of reduced safety margins. The present study employed a safety climate approach to assist in the development of a model that can help to explain morale, psychological health, turnover intentions, and error in the aviation maintenance environment. An instrument called the Maintenance Environment Survey was developed and administered to 240 personnel responsible for maintenance of a large military helicopter fleet. Data collected through the survey were used to develop a structural model that predicted 45 per cent of the variance in psychological health, 67 per cent of the variance in morale, 27 per cent of the variance in turnover intentions, and 44 per cent of the variance in self-reported maintenance errors. The model shows the pathways through which organizational level and individual level variables can influence work outcomes and leads to suggestions for interventions that can help to improve maintenance efficiency

STRUCTURAL EQUATION MODELING ANALYSIS USING SMART PLS TO ASSESS THE OCCUPATIONAL HEALTH AND SAFETY (OHS) FACTORS ON WORKERS’BEHAVIOR

Purpose: The study aims to examine and evaluate the impact of five Occupational Health and Safety (OHS) factors, i.e., Commitment of management, Communication, Training & Education, Health Care and Policies in predicting construction workers’ behavior in construction projects of Oman.Design/methodology/approach: A questionnaire was designed, and data was collectedon arandom sampling basis. Two hundred and fifty-twosamples were collected, and the data was analyzed using Smart PLS -Structural Equation Modeling (SEM) technique.Findings: The study shows thatCommitment of management, Communication, and Training &Educationplays a pivotal role in inspiring the construction workers to improve their perception towards Health and Safety behavior. These factors help in theclear-cut understanding of safety issues and aid in skills development and increase capabilities. All the factors influence the sustainable positive OHS results. Research limitations/Implications: The present study covers only the construction workers. Entire stakeholdersinvolved in construction project (contractors, clients, and consultants) canbe includedfor further studies. Social Implications: The study will help to improve the Health and Safety practices in the construction industry and expected to bring in more awareness among workers, which will inevitably bring in a culture of safe behavior. The ultimate result will be asubstantial reduction or elimination in safety-relatedincidents, which helps all the stakeholders (Contractors, Clients and Consultants).Originality/Value: Only a very few have examined the impact of Occupational Health and Safety factors on the workers’ behavior, and usage of SmartPLS is a novel idea, and it is a first-hand study of its kind

A science mapping approach based review of construction safety research

This study adopted a three-step holistic review approach consisting of bibliometric review, scientometric analysis, and in-depth discussion to gain a deeper understanding of the research development in construction safety. Focusing on a total of 513 journal articles published in Scopus, the influential journals, keywords, scholars, and articles in the domain of construction safety were analyzed

STUDY ON THE INFLUENCE OF SAFETY EDUCATION ON THE WILLINGNESS OF CONSTRUCTION WORKERS TO HABITUAL SAFETY BEHAVIOUR

In order to explore the impact of safety education on the willingness of construction workersto habitual safety behaviours, the relevant literatures are analysed, relevant research hypothesesare proposed, and the theoretical model of habitual safety behaviour willingness influencing factorsis established, and the verification and analysis are carried out by means of inter-groupexperiments. The results show that different types of safety education have different influences onthe willingness of construction workers to habitual safety behaviours under the mediating role oftime scale adjustment and perceptual behaviour control

Evaluating the Safety Cultures of Kentucky Transportation Cabinet Maintenance Crews

Highway work zones can be dangerous and unpredictable. Between 2003 and 2017, over 1,800 workers died on road construction sites. Eliminating injuries and deaths requires state transportation agencies to adopt robust safety cultures as there is a clear relationship between these cultures and worker behaviors. The Kentucky Transportation Cabinet (KYTC) is committed to improving safety performance by nurturing a positive safety climate among highway maintenance crews. To understand the safety cultures of KYTC maintenance crews, researchers administered a survey based on the Safety Climate Assessment Tool (S-CAT) developed by the Center for Construction Research and Training (CPWR). This is the first tool developed for the construction industry. The survey was used to quantified the existing safety climate and evaluate how effective safety programs and controls are at reducing workplace hazards. Survey respondents answered questions on 37 indicators across eight safety climate categories: employee risk perception, management commitment, aligning and integrating safety as a value, ensuring accountability at all levels, improving supervisory leadership, empowering and involving employees, improving communication, and safety training. For each indicator respondents assigned a rating on a five-point Likert scale — Inattentive (1), Reactive (2), Compliant (3), Proactive (4), Exemplary (5). Analysis of survey responses at the statewide and district levels found that KYTC’s safety culture can be characterized as between compliant and proactive. Focus groups with maintenance superintendents generated recommendations to improve safety cultures and install multiple layers of preventive measures to further reduce the number and threat of jobsite hazards

Construction management’s perceptions of health and safety

Projects in the construction sector are reputed for poor health and safety (H&S) performance, compared to other industries. This can be attributed to, inter alia, a relatively uncontrolled working environment, inherent operational risks, workers' behaviour in relation to H&S commitment, cultural and religious beliefs, and uncertainties inherent in projects. Hazards and risk arising from poor H&S practices result in injuries, and in some cases, fatalities. The aim of this study is to explore the perceptions of construction management regarding H&S on construction sites. This study investigates the relationship between behaviours, attitudes, perceptions, and behaviours towards H&S, and compares cultural divergences among levels of construction personnel, namely construction management, construction supervision, construction H&S personnel, and H&S representatives. The construction industry has for many years developed and maintained a very bad reputation for coping with project cost, H&S, quality, and schedule. The industry often delivers projects late, and contributes to a disproportionate rate of work-related injuries, and fatalities. Project H&S management is acknowledged as one of the techniques that could be improved on construction projects to enhance performance of construction contractors in South Africa. To answer the research question: ‘Why construction management perceive H&S as a hindrance to production?” the mixed-method research approach was used. An indepth literature review with respect to project H&S was carried out, followed by qualitative and quantitative empirical research. The study established the need for H&S training and awareness of Construction Managers, Construction Supervisors, Construction Health and Safety Managers (CHSMs), Officers (CHSOs), and H&S Representatives. The study recommends that an H&S training needs analysis is critical for all employees, since it raises H&S awareness among all stakeholders in the construction industry, and enables the development of training plans, thereby supporting the reduction of accidents and related incident

A model of safety climate for the manufacturing sector

This research examines the structure of safety climate in the manufacturing sector. It does so by examining and comparing attitudes to, and perceptions of, safety issues in two manufacturing organisations and one organisation involved in the supply of construction materials. The concept of safety climate, and the associated concept of safety culture, have been the subject of much research and theory building in recent years and this thesis builds on previous work. The research framework used here employed a mainly quantitative methodology in order to investigate the architecture of safety climate using structural modelling. Statistical modelling has been applied in other safety studies, often involving safety climate as one variable in a global description of safety systems. However it has rarely been used to model and describe the structure of safety climate as an indicator of safety culture, as in this research. The structure of safety climate described in this research is characterised by the interaction of organisational, group interaction, work environment and individual variables, which provide indicators of influences on individual levels of safety activity. Structural models of the data from all three participating organisations fitted the broad pattern of organisational variables influencing group and work environment variables, which, in turn influence individual variables. A more detailed comparison of organisational structures, however, highlighted slight differences between the two manufacturing organisations and more pronounced differences between these and the construction material supply organisation, suggesting that most elements in the structure of attitudes to safety described here are industry specific. These results are explained in terms of working environments. Differences in structure, consistent with job roles, were also apparent between occupational levels. The research, in line with previous work in the field, has highlighted the importance of management commitment to, and actions for, safety, as well as the role of individual responsibility in the promotion of safety activity. The work reported here has emphasised their importance in developing and maintaining an organisational culture for safety

Optimization of Safety Control System for Civil Infrastructure Construction Projects

Labor-intensive repetitive activities are common in civil construction projects. Construction workers are prone to developing musculoskeletal disorders-related injuries while performing such tasks. The government regulatory agency provides minimum safety requirement guidelines to the construction industry that might not be sufficient to prevent accidents and injuries in a construction site. Also, the regulations do not provide insight into what can be done beyond the mandatory requirements to maximize safety and underscore the level of safety that can be attained and sustained on a site. The research addresses the aforestated problem in three stages: (i) identification of theoretical maximum attainable level of safety, safety frontier, (ii) identification of underlying system inefficiencies and operational inefficiencies, and (iii) identification of achievable level of safety, sustainable safety. The research proposes a novel approach to identify the safety frontier by kinetic analysis of the human body while performing labor-intensive repetitive tasks. The task is a combination of different unique actions, which further involve several movements. For identifying a safe working procedure, each movement frame needs to be analyzed to compute the joint stress. Multiple instances of repetitive tasks can then be analyzed to identify unique actions exerting minimum stress on joints. The safety frontier is a combination of such unique actions. For this, the research proposes to track the skeletal positional data of workers performing different repetitive tasks. Unique actions involved in all tasks were identified for each movement frame. For this, several machine learning techniques were implemented. Moreover, the inverse dynamics principle was used to compute the stress induced by essential joints. In addition to the inverse dynamics principle, several machine learning algorithms were implemented to predict lower back moments. Then, the safety frontier was computed, combining the unique actions exerting minimum stress to the joints. Furthermore, the research conducted a questionnaire survey with construction experts to identify the factors affecting system inefficiencies that are not under the control of the project management team and operational inefficiencies that are under control. Then, the sustainable safety was computed by adding system inefficiencies to the safety frontier and removing operational inefficiencies from observed safety. The research validated the applicability of the proposed methodology in a real construction site. The application of random forest classifier, one-vs-rest classifier, and support vector machine approach were validated with high accuracy (\u3e95%). Similarly, random forest regressor, lasso regression, gradient boosting evaluation, stacking regression, and deep neural network were explored to predict the lower back moment. Random forest regressor and deep neural network predicted the lower back moment with an explained variance of 0.582 and 0.700, respectively. The computed safety frontier and sustainable safety can potentially facilitate the construction sector to improve safety strategies by providing a higher safety benchmark for monitoring, including the ability to monitor postural safety in real-time. Moreover, different industrial sectors such as manufacturing and agriculture can implement the similar approach to identify safe working postures for any labor-intensive repetitive task

Expatriates' Multiple Fears, from Terrorism to Working Conditions: Development of a Model

Companies’ internationalization appears to be fundamental in the current globalized and competitive environment and seems important not only for organizational success, but also for societal development and sustainability. On one hand, global business increases the demand for managers for international assignment. On the other hand, emergent fears, such as terrorism, seem to be developing around the world, enhancing the risk of expatriates’ potential health problems. The purpose of this paper is to examine the relationships between the emergent concept of fear of expatriation with further workplace fears (economic crisis and dangerous working conditions) and with mental health problems. The study uses a quantitative design. Self-reported data were collected from 265 Italian expatriate workers assigned to both Italian and worldwide projects. Structural equation model analyses showed that fear of expatriation mediates the relationship of mental health with fear of economic crisis and with perceived dangerous working conditions. As expected, in addition to fear, worries of expatriation are also related to further fears. Although the study is based on self-reports and the cross-sectional study design limits the possibility of making causal inferences, the new constructs introduced add to previous research

A study of causes of construction accidents in repair, maintenance, minor alteration and addition (RMAA) works in Hong Kong

Thesis (B.Sc)--University of Hong Kong, 2007.Includes bibliographical references (p. 137-142).published_or_final_versio