Figure 2.
The timeline infographic maps construction worker wellbeing research themes and corresponding research methods and technologies between 2014 and 2025. The upper section lists research themes including hydration and heat stress, environmental risk perception, cooling solutions, thermal comfort, climate change impact, worker satisfaction, injury risk, environmental design, comparative risk assessments, psychosocial hazards, bullying prevention, and leadership behaviour. The lower section aligns research methods and technologies with the same years, including W B G T, T W L experimental monitoring, H R V physiological monitoring, interviews, wearable sensors, structured surveys, thermal data logging, pulse and fatigue measures, environmental sensors, E D A monitoring, and S E M modelling. Arrows connect years to associated themes and methods, illustrating the evolution of research priorities and technological approaches over time.Evolution landscape in research themes and methods/technologies for construction site characteristics