{
  "slug": "why-queuing-theory-changed-service-operations",
  "version": 1,
  "layout": "flow",
  "nodes": [
    {
      "id": "n1",
      "type": "person",
      "label": "Arrivals",
      "x": 67,
      "y": 74,
      "w": 162,
      "h": 162,
      "detail": "random rate"
    },
    {
      "id": "n2",
      "type": "zone",
      "label": "Queue",
      "x": 296,
      "y": 84,
      "w": 82,
      "h": 82,
      "detail": "waiting line"
    },
    {
      "id": "n3",
      "type": "person",
      "label": "Server",
      "x": 296,
      "y": 190,
      "w": 82,
      "h": 82,
      "detail": "service time"
    },
    {
      "id": "n4",
      "type": "person",
      "label": "Departed",
      "x": 296,
      "y": 296,
      "w": 82,
      "h": 82
    }
  ],
  "relationships": [
    {
      "from": "n1",
      "to": "n2",
      "label": "join"
    },
    {
      "from": "n2",
      "to": "n3",
      "label": "served by"
    },
    {
      "from": "n3",
      "to": "n4",
      "label": "leave"
    }
  ],
  "summary": "Arrivals join a queue; server capacity and arrival rate determine wait time mathematically.",
  "mechanism": "arrival-service-rate-modelling",
  "fig": "FIG. / THE MATHEMATICS OF THE WAIT",
  "animation": {
    "style": "assemble",
    "duration": 700,
    "stagger": 60
  },
  "presentation": {
    "style": "vignette",
    "hero": "n1",
    "support": [
      "n3"
    ],
    "icon": "person",
    "label": "Arrivals",
    "tilt": 0
  },
  "illustration": {
    "concept": "Six people queuing behind stanchions toward service window; wait-time bell curve above the queue shows distribution of service times",
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