This example adapts the general multiserver queueing system to a city's ambulance service. The ambulances are the "servers" and a customer "arrival"; corresponds to a call for an ambulance from some location. If at least one ambulance is not currently busy, it responds immediately to the call for service. Otherwise this call waits, in first-come-first served order, for the next available ambulance. In addition to the usual queueing outputs, the model keeps track of waiting and ambulance costs per day. The number of ambulances can be increased or decreased to explore the trade-off between ambulances and waiting time.