Conclusion
This study presents change and evolution of technology development for investigating various industrial safety issues. The safety technology has continuously been improved for protecting perilous and hazardous factors, covering all aspects of the safety fields, but previously, the studies of identifying major safety fields and technologies have rarely been conducted. Thus, the contribution of this study lies on monitoring major safety fields and improvement trajectories for providing the safety managers and engineers with practical insights. This is almost first approach to identifying the types of safety technology fields and the change of safety technology development. By visualizing convergence clusters and trajectories, we also monitor which technologies are mostly developed for safety. According to path of convergence trajectories, it is indicated that safety technologies are developed for safety in industrial sites, information systems, and vehicles. Each of safety technologies is directly or indirectly related to operations, worker, and system safety as well. The highlight of this study is that information technology is a dominant trend and plays a critical role in mediating between safety managers in the control tower and workers in the industrial site. Also, needs of product innovation in safety such as vehicles are addressed.
