One way to help create safety in the environment is to look at the system through motion studies. These can be of staff or of patients. Some of the earliest motion studies were done in the early 1900s by the husband and wife team of Frank and Lillian Gilbreth. The Gilbreths were the inspiration for the characters in the movie and novel, Cheaper by the Dozen.
You can watch some of the Gilbreths’ early motion study videos here