Abstract
Using a genetic algorithm, we designed the layout for the work room at the nursing staff station focusing on optimizing several parameters such as level of cleanliness, area for work, and distance from the doorway at each work related to specific equipment. The layout was successfully optimized in one of two different stations enrolled to the study. Then the layout of this station was actually modified according to the design, while the layout of the other station was adopted to improve the cause of failure, i.e. narrowness at certain places. Finally, staff evaluations indicated that both of these modifications were satisfactory. The recommendations derived from simulation by genetic algorithm include: separate a clean zone and an unclean zone linearly in the room, and equip emergency tools on a cart ready-to-move by doorway. It is suggested that these recommendations could be generally useful for optimizing the layout of the work room at the nursing staff station.