Model library
Prepared models that open in the simulator, ready to run. Nothing to install and no account — press play and watch, or run a batch for figures with confidence intervals. The same models are behind the Model Library button in the simulator's toolbar. More are on the way.
One server, one line
Arrivals at 0.8 a second against a server that handles 1 a second — busy 80% of the time. The waiting line grows and drains, and nothing is ever turned away.
Try this: Raise the arrival rate towards the service rate and watch the waiting time stop rising in a straight line.
Open in the simulatorThree servers, one line
Twice the arrivals, shared by three servers that each handle 1 a second — the same 67% busy, but one queue instead of three.
Try this: Compare it with three separate lines. One shared line is far shorter, and almost nobody predicts by how much.
Open in the simulatorA line that fills up
Room for five waiting and no more. An arrival that finds it full is turned away rather than queued, so the system loses work instead of growing a backlog.
Try this: Push the arrival rate up and watch what happens to the throughput, not just to the queue.
Open in the simulatorChange a model and your version is kept in the browser like any other work — in place of the model you had there before, so save that to a file first if you want it back. Open a model's address again and it is back as published. Or start from a blank canvas in the simulator.