Engineering and Technology Horizons | 2026
Authors: Chankampom T.; Kusonkhum W.; Srinavin K.
DOI: 10.55003/ETH.430106
Journal: Engineering and Technology Horizons
Year: 2026
Publisher: King Mongkut's Institute of Technology Ladkrabang
Document Type: Article
Open Access: All Open Access; Gold Open Access
Cited by: 0
The construction industry, particularly high-rise construction projects in major urban areas, is a key driver of national economic growth; nevertheless, persistently low labor productivity continues to constrain project performance. This study investigates skilled construction workers’ perceptions of factors influencing labor productivity in high-rise construction projects in Bangkok, Thailand. A quantitative research design was employed using a structured questionnaire administered to skilled workers engaged in high-rise building projects across Bangkok and its metropolitan areas. A total of 346 valid responses were analyzed using multiple regression analysis (MRA). Labor productivity was specified as the dependent variable, while materials, tools, and equipment, health and safety, motivation, construction site area, and weather conditions were modeled as independent variables. The proposed model explained 77.2% of the variance in labor productivity. The results indicate that motivation (β = 0.786, p < 0.01) and health and safety (β = 0.130, p < 0.05) exert statistically significant positive effects on labor productivity. In contrast, the construction site area has a significant adverse effect (β = −0.154, p < 0.01). In contrast, materials, tools, and equipment, and weather conditions do not exhibit statistically significant relationships with labor productivity. The findings underscore the critical role of motivation-oriented management practices and proactive investment in occupational health and safety in enhancing skilled labor productivity, while highlighting productivity losses associated with spatial constraints and inefficient site layouts in high-rise construction projects. Departing from the predominantly managerial focus of prior studies, this research advances the literature by providing worker-centric empirical evidence from high-rise construction projects in Bangkok, Thailand, within a developing-country context. The results offer theoretically grounded, practically actionable insights for improving labor productivity through motivation-driven management, safety-oriented policy interventions, and practical construction site planning in urban high-rise developments. © 2026, King Mongkut's Institute of Technology Ladkrabang. All rights reserved.
High-Rise Construction Projects; Labor productivity; Skilled workers; Workers’ perception