🏥 Hospital Emergency Department Flow: Triage, Priority Queue, Treatment Bays and Imaging Door-to-Doctor Lab

A cutaway 3D emergency department as a queueing network with abstract patient tokens: time-of-day Poisson arrivals, triage desk, priority waiting room, treatment bays, doctors, imaging and discharge. Tune bays and staffing, read door-to-doctor time, length of stay and left-without-being-seen rate, and check the model against Erlang C, the Cobham priority formula and Little's law. Educational model, not medical or staffing advice.