Queueing Network — High-Street Coffee Shop
The 08:00 rush at 210 customers an hour across till, espresso bar, food warming and collection, showing how a near-minute barista queue emerges from an espresso bar that is only 80% loaded.
Make it your own.
title "High-street coffee shop — 08:00 rush"
target 80%
arrivals Order 210/h
# Order taking is scripted and quick (cv 0.7); the espresso bar is not —
# a flat white and a tray of four is the same server (cv 1.25).
station Order { servers: 3; service: 42s; cv: 0.7 }
station "Espresso bar" { servers: 5; service: 78s; cv: 1.25 }
station "Food warming" { servers: 2; service: 55s; capacity: 8 }
station Collection { servers: 2; service: 18s }
route Order -> "Espresso bar" 0.88
route Order -> "Food warming" 0.12
route "Espresso bar" -> "Food warming" 0.31
route "Espresso bar" -> Collection 0.69
route "Food warming" -> Collection 1.0
route Collection -> exit 1.0