This paper presents a study of occupational stress experienced by bus drivers in Universiti Teknologi Malaysia (UTM). The objectives of the study are i) to identify contributing factors leading to high stress among bus drivers and ii) to investigate the effect of occupational stress on bus drivers. A set of questionnaires consisting of demographic information, stressors leading to occupational stress, and strain of occupational stress was distributed to fifteen bus drivers working in UTM. The study used Statistical Package for the Social Sciences (SPSS) to analyse the data and correlation between the contributing factors and occupational stress among the bus drivers. Poor design of bus seat was identified as the leading factors to occupational stress among bus drivers. The bus drivers felt uncomfortable seating and driving for long hours. The seat is not ergonomic to bus driver’s back and body frame. Fatigue, headache, and dizzy are common effects of occupational stress to the bus drivers.

This paper presents the use of human factor analysis and classification system (HFACS) for the explosion in the Texas Tech University laboratory. Human factor issues in the university laboratory were assessed according to four categories in HFACS: unsafe acts, precondition for unsafe acts, unsafe supervision, and organizational influences. The assessment showed that the student committed many errors due to precondition for unsafe acts, in particular no physical hazard evaluation required prior to conducting the experiment. Inadequate supervision in the university laboratory caused the presence of precondition for unsafe acts among students. The trajectory of human factor issues in the categories of unsafe acts, precondition for unsafe acts, and unsafe supervision pointed to the university’s organization. The human factor issues were analyzed according to three subcategories in organizational influences: resource management, organizational climate, and organizational process. The use of HFACS in the explosion in the Texas Tech University laboratory could demonstrate the sequence of failures and human factors leading to the accident.

Performance-shaping factors (PSFs) are used to address the strengths and weaknesses of workers performing escape and evacuation activities. These PSFs are time, environmental factors as stressors, complexity of activities, experiences and training, interaction between workers and emergency equipment, workers' physical conditions, and procedures. This paper presents a survey work on fitness for the duty of workers performing basic offshore survival and emergency response training. The training provides credible scenarios of escape and evacuation in case of an emergency of offshore installations in tropical waters. The survey is conducted among participants of the tropical basic offshore safety induction & emergency training with emergency breathing system. Sixteen participants of the training voluntarily answered the set of questionnaires. The survey work addresses the fitness for duty among workers performing escape and evacuation on offshore installations. Survey results indicate that workers must have good physical conditions and mental fitness in order to accomplish the escape and evacuation activities.