53'!\" 9-? What is the capacity of each resource in patient arrivals per hour? What is the system capacity in patient arrivals per hour? Which resource(s) is (are) the bottleneck? How can the ED increase its capacity to be able to serve 16 patients per hour? What resources (and how many of each) would the ED need to add to be able to serve 21 patients per hour if the trauma rate drops from 20% to 10%