Real-time planning: extended stop

There are many situations where Real-time planning is necessary.

Sometimes stops take longer than expected.

Consider the following shift schedule:

Carl has four stops scheduled for the day: Stop C, Stop A, Stop D and Stop B.

However, Stop C takes much longer than expected.

As a result, Stop A, Stop D and Stop B need to be rescheduled.

Real-time planning: extended stop
Figure 1. Real-time planning: extended stop

This guide explains real-time planning: extended stops with the following:

1. Batch schedule: extended stop

Learn how to configure an API Key to run the examples in this guide:

  1. Log in to Timefold Platform: app.timefold.ai

  2. From the Dashboard, click your tenant, and from the drop-down menu select Manage tenant, then choose API Keys.

  3. Create a new API key or use an existing one. Ensure the list of models for the API key contains the Pick-up and Delivery Routing model.

In the examples, replace <API_KEY> with the API Key you just copied.

Carl’s original schedule was generated from the following input dataset during the regular batch scheduling:

  • Input

  • Output

Try this example in Timefold Platform by saving this JSON into a file called sample.json and make the following API call: 
curl -X POST -H "Content-type: application/json" -H 'X-API-KEY: <API_KEY>' https://app.timefold.ai/api/models/pickup-delivery-routing/v1/route-plans [email protected]
{
  "config": {
    "run": {
      "name": "Original shift plan: extended stop example"
    }
  },
  "modelInput": {
    "drivers": [
      {
        "id": "Carl",
        "shifts": [
          {
            "id": "Carl Mon",
            "startLocation": [33.77284, -84.42989],
            "minStartTime": "2027-02-01T09:00:00Z",
            "maxEndTime": "2027-02-01T12:00:00Z"
          }
        ]
      }
    ],
    "jobs": [
      {
        "id": "job1",
        "stops": [
          {
            "id": "Stop A",
            "name": "Stop A",
            "location": [33.74648, -84.46461],
            "duration": "PT10M"
          },
          {
            "id": "Stop B",
            "name": "Stop B",
            "location": [33.65207, -84.46496],
            "duration": "PT10M"
          }
        ]
      },
      {
        "id": "job2",
        "stops": [
          {
            "id": "Stop C",
            "name": "Stop C",
            "location": [33.77911, -84.49644],
            "duration": "PT10M"
          },
          {
            "id": "Stop D",
            "name": "Stop D",
            "location": [33.65979, -84.46366],
            "duration": "PT10M"
          }
        ]
      }
    ]
  }
}
To request the solution, locate the ID from the response to the post operation and append it to the following API call: 
curl -X GET -H 'X-API-KEY: <API_KEY>' https://app.timefold.ai/api/models/pickup-delivery-routing/v1/route-plans/<ID>
{
  "metadata": {
    "id": "ID",
    "originId": "ID",
    "name": "Original shift plan: extended stop example",
    "submitDateTime": "2026-04-09T16:15:34.09559+02:00",
    "startDateTime": "2026-04-09T16:15:34.15051+02:00",
    "activeDateTime": "2026-04-09T16:15:34.152865+02:00",
    "completeDateTime": "2026-04-09T16:16:04.170458+02:00",
    "shutdownDateTime": "2026-04-09T16:16:04.17046+02:00",
    "solverStatus": "SOLVING_COMPLETED",
    "score": "0hard/0medium/-2533soft",
    "validationResult": {
      "summary": "OK"
    }
  },
  "modelOutput": {
    "drivers": [
      {
        "id": "Carl",
        "shifts": [
          {
            "id": "Carl Mon",
            "startTime": "2027-02-01T09:00:00Z",
            "itinerary": [
              {
                "id": "Stop C",
                "arrivalTime": "2027-02-01T09:07:26Z",
                "startServiceTime": "2027-02-01T09:07:26Z",
                "departureTime": "2027-02-01T09:17:26Z",
                "effectiveDuration": "PT10M",
                "travelTimeFromPreviousStandstill": "PT7M26S",
                "travelDistanceMetersFromPreviousStandstill": 6190,
                "minStartTravelTime": "2027-02-01T00:00:00Z",
                "load": [],
                "kind": "STOP"
              },
              {
                "id": "Stop A",
                "arrivalTime": "2027-02-01T09:23:02Z",
                "startServiceTime": "2027-02-01T09:23:02Z",
                "departureTime": "2027-02-01T09:33:02Z",
                "effectiveDuration": "PT10M",
                "travelTimeFromPreviousStandstill": "PT5M36S",
                "travelDistanceMetersFromPreviousStandstill": 4671,
                "minStartTravelTime": "2027-02-01T00:00:00Z",
                "load": [],
                "kind": "STOP"
              },
              {
                "id": "Stop D",
                "arrivalTime": "2027-02-01T09:44:36Z",
                "startServiceTime": "2027-02-01T09:44:36Z",
                "departureTime": "2027-02-01T09:54:36Z",
                "effectiveDuration": "PT10M",
                "travelTimeFromPreviousStandstill": "PT11M34S",
                "travelDistanceMetersFromPreviousStandstill": 9640,
                "minStartTravelTime": "2027-02-01T00:00:00Z",
                "load": [],
                "kind": "STOP"
              },
              {
                "id": "Stop B",
                "arrivalTime": "2027-02-01T09:55:38Z",
                "startServiceTime": "2027-02-01T09:55:38Z",
                "departureTime": "2027-02-01T10:05:38Z",
                "effectiveDuration": "PT10M",
                "travelTimeFromPreviousStandstill": "PT1M2S",
                "travelDistanceMetersFromPreviousStandstill": 867,
                "minStartTravelTime": "2027-02-01T00:00:00Z",
                "load": [],
                "kind": "STOP"
              }
            ],
            "metrics": {
              "totalTravelTime": "PT42M13S",
              "travelTimeFromStartLocationToFirstStop": "PT7M26S",
              "travelTimeBetweenStops": "PT18M12S",
              "travelTimeFromLastStopToEndLocation": "PT16M35S",
              "totalTravelDistanceMeters": 35183,
              "travelDistanceFromStartLocationToFirstStopMeters": 6190,
              "travelDistanceBetweenStopsMeters": 15178,
              "travelDistanceFromLastStopToEndLocationMeters": 13815,
              "endLocationArrivalTime": "2027-02-01T10:22:13Z"
            }
          }
        ]
      }
    ],
    "unassignedJobs": []
  },
  "inputMetrics": {
    "jobs": 2,
    "stops": 4,
    "drivers": 1,
    "driverShifts": 1,
    "pinnedStops": 0
  },
  "kpis": {
    "totalTravelTime": "PT42M13S",
    "totalTravelDistanceMeters": 35183,
    "totalActivatedDrivers": 1,
    "totalUnassignedJobs": 0,
    "totalAssignedJobs": 2,
    "assignedMandatoryJobs": 2,
    "totalUnassignedStops": 0,
    "totalAssignedStops": 4,
    "assignedMandatoryStops": 4,
    "travelTimeFromStartLocationToFirstStop": "PT7M26S",
    "travelTimeBetweenStops": "PT18M12S",
    "travelTimeFromLastStopToEndLocation": "PT16M35S",
    "travelDistanceFromStartLocationToFirstStopMeters": 6190,
    "travelDistanceBetweenStopsMeters": 15178,
    "travelDistanceFromLastStopToEndLocationMeters": 13815
  }
}

modelOutput contains Carl’s shift itinerary.

2. Real-time planning update: extended stop

The plan needs to be updated to reflect the new situation.

Stop C took thirty minutes longer than expected.

Update the duration for Stop C from 10 minutes to 40 minutes. Add the minStartTravelTime from the most recent planning output dataset (batch or real-time) to each stop.

{
  "jobs": [
    {
      "id": "job1",
      "stops": [
        {
          "id": "Stop A",
          "location": [33.84475, -84.63649],
          "duration": "PT10M",
          "minStartTravelTime": "2027-02-01T00:00:00Z"
        },
        {
          "id": "Stop B",
          "location": [33.90719, -84.28149],
          "duration": "PT10M",
          "minStartTravelTime": "2027-02-01T00:00:00Z"
        }
      ]
    },
    {
      "id": "job2",
      "stops": [
        {
          "id": "Stop C",
          "location":  [33.89351, -84.00649],
          "duration": "PT40M",
          "minStartTravelTime": "2027-02-01T00:00:00Z"
        },
        {
          "id": "Stop D",
          "location":  [33.89351, -84.00649],
          "duration": "PT10M",
          "minStartTravelTime": "2027-02-01T00:00:00Z"
        }
      ]
    }
  ]
}

Add the itinerary to Carl’s shifts with Stop C, Stop A, Stop D and Stop B, including the stop IDs and the stop kind:

{
  "id": "Carl",
  "shifts": [
    {
      "id": "Carl-2027-02-01",
      "startLocation": [33.68786, -84.18487],
      "minStartTime": "2027-02-01T09:00:00Z",
      "maxEndTime": "2027-02-01T11:00:00Z",
      "itinerary": [
        {
          "id": "Stop C",
          "kind": "STOP"
        },
        {
          "id": "Stop A",
          "kind": "STOP"
        },
        {
          "id": "Stop D",
          "kind": "STOP"
        },
        {
          "id": "Stop B",
          "kind": "STOP"
        }
      ]
    }
  ]
}

Freeze the departure times for stops that have already occurred and that drivers have begun traveling to by adding freezeTime:

{
  "modelInput": {
    "freezeTime": "2027-02-01T09:20:00Z"
  }
}

Because Carl finished Stop C at 09:17 and is already traveling to Stop A at the freezeTime, this will keep Stop A scheduled after Stop C with a new arrival time.

Instead of resubmitting the full updated dataset, you can make this change with the Patch feature, which submits only the change as a JSON Patch document and generates a new revision of the plan. The Patch feature is currently available as a preview feature. If you’d like early access to it, please contact us.

  • Input

  • Patch

{
  "id": "Stop C",
  "name": "Stop C",
  "location": [33.77911, -84.49644],
  "duration": "PT40M",
  "minStartTravelTime": "2027-02-01T00:00:00Z"
}
{
  "op": "replace",
  "path": "/jobs/[id=job2]/stops/[id=Stop C]/duration",
  "value": "PT40M"
}

To learn more about the /from-patch/ endpoint and the patch payload format see /from-patch.

The freezeTime is set the same way:

  • Input

  • Patch

{
  "modelInput": {
    "freezeTime": "2027-02-01T09:20:00Z"
  }
}
{
  "op": "add",
  "path": "/freezeTime",
  "value": "2027-02-01T09:20:00Z"
}

Submit the full patch to modify the original input dataset to the following endpoint. Replace <ID> with the dataset ID:

v1/route-plans/<ID>/from-patch/

When submitted, solving is triggered to generate a new revision of the plan.

  • Patch

  • Output

Try this example in Timefold Platform by saving this JSON into a file called patch.json and make the following API call: 
curl -X POST -H "Content-type: application/json" -H 'X-API-KEY: <API_KEY>' https://app.timefold.ai/api/models/pickup-delivery-routing/v1/route-plans/<ID>/from-patch [email protected]
{
  "config": {
    "run": {
      "name": "Real-time planning: extended stop example"
    }
  },
  "patch": [
    {
      "op": "add",
      "path": "/freezeTime",
      "value": "2027-02-01T09:20:00Z"
    },
    {
      "op": "replace",
      "path": "/jobs/[id=job2]/stops/[id=Stop C]/duration",
      "value": "PT40M"
    }
  ]
}
To request the solution, locate the ID from the response to the post operation and append it to the following API call: 
curl -X GET -H 'X-API-KEY: <API_KEY>' https://app.timefold.ai/api/models/pickup-delivery-routing/v1/route-plans/<ID>
{
  "metadata": {
    "id": "ID",
    "originId": "ID",
    "name": "Original shift plan: extended stop example",
    "submitDateTime": "2026-04-09T16:11:41.258457+02:00",
    "startDateTime": "2026-04-09T16:11:41.465113+02:00",
    "activeDateTime": "2026-04-09T16:11:41.465887+02:00",
    "completeDateTime": "2026-04-09T16:12:11.481571+02:00",
    "shutdownDateTime": "2026-04-09T16:12:11.481574+02:00",
    "solverStatus": "SOLVING_COMPLETED",
    "score": "0hard/0medium/-2533soft",
    "validationResult": {
      "summary": "OK"
    }
  },
  "modelOutput": {
    "drivers": [
      {
        "id": "Carl",
        "shifts": [
          {
            "id": "Carl Mon",
            "startTime": "2027-02-01T09:00:00Z",
            "itinerary": [
              {
                "id": "Stop C",
                "arrivalTime": "2027-02-01T09:07:26Z",
                "startServiceTime": "2027-02-01T09:07:26Z",
                "departureTime": "2027-02-01T09:47:26Z",
                "effectiveDuration": "PT40M",
                "travelTimeFromPreviousStandstill": "PT7M26S",
                "travelDistanceMetersFromPreviousStandstill": 6190,
                "minStartTravelTime": "2027-02-01T00:00:00Z",
                "load": [],
                "pinned": true,
                "kind": "STOP"
              },
              {
                "id": "Stop A",
                "arrivalTime": "2027-02-01T09:53:02Z",
                "startServiceTime": "2027-02-01T09:53:02Z",
                "departureTime": "2027-02-01T10:03:02Z",
                "effectiveDuration": "PT10M",
                "travelTimeFromPreviousStandstill": "PT5M36S",
                "travelDistanceMetersFromPreviousStandstill": 4671,
                "minStartTravelTime": "2027-02-01T09:20:00Z",
                "load": [],
                "kind": "STOP"
              },
              {
                "id": "Stop D",
                "arrivalTime": "2027-02-01T10:14:36Z",
                "startServiceTime": "2027-02-01T10:14:36Z",
                "departureTime": "2027-02-01T10:24:36Z",
                "effectiveDuration": "PT10M",
                "travelTimeFromPreviousStandstill": "PT11M34S",
                "travelDistanceMetersFromPreviousStandstill": 9640,
                "minStartTravelTime": "2027-02-01T09:20:00Z",
                "load": [],
                "kind": "STOP"
              },
              {
                "id": "Stop B",
                "arrivalTime": "2027-02-01T10:25:38Z",
                "startServiceTime": "2027-02-01T10:25:38Z",
                "departureTime": "2027-02-01T10:35:38Z",
                "effectiveDuration": "PT10M",
                "travelTimeFromPreviousStandstill": "PT1M2S",
                "travelDistanceMetersFromPreviousStandstill": 867,
                "minStartTravelTime": "2027-02-01T09:20:00Z",
                "load": [],
                "kind": "STOP"
              }
            ],
            "metrics": {
              "totalTravelTime": "PT42M13S",
              "travelTimeFromStartLocationToFirstStop": "PT7M26S",
              "travelTimeBetweenStops": "PT18M12S",
              "travelTimeFromLastStopToEndLocation": "PT16M35S",
              "totalTravelDistanceMeters": 35183,
              "travelDistanceFromStartLocationToFirstStopMeters": 6190,
              "travelDistanceBetweenStopsMeters": 15178,
              "travelDistanceFromLastStopToEndLocationMeters": 13815,
              "endLocationArrivalTime": "2027-02-01T10:52:13Z"
            }
          }
        ]
      }
    ],
    "unassignedJobs": []
  },
  "inputMetrics": {
    "jobs": 2,
    "stops": 4,
    "drivers": 1,
    "driverShifts": 1,
    "pinnedStops": 1
  },
  "kpis": {
    "totalTravelTime": "PT42M13S",
    "totalTravelDistanceMeters": 35183,
    "totalActivatedDrivers": 1,
    "totalUnassignedJobs": 0,
    "totalAssignedJobs": 2,
    "assignedMandatoryJobs": 2,
    "totalUnassignedStops": 0,
    "totalAssignedStops": 4,
    "assignedMandatoryStops": 4,
    "travelTimeFromStartLocationToFirstStop": "PT7M26S",
    "travelTimeBetweenStops": "PT18M12S",
    "travelTimeFromLastStopToEndLocation": "PT16M35S",
    "travelDistanceFromStartLocationToFirstStopMeters": 6190,
    "travelDistanceBetweenStopsMeters": 15178,
    "travelDistanceFromLastStopToEndLocationMeters": 13815
  }
}

modelOutput contains Carl’s updated shift itinerary.

Submit the updated input dataset to generate the new real-time plan.

  • Input

  • Output

Try this example in Timefold Platform by saving this JSON into a file called sample.json and make the following API call: 
curl -X POST -H "Content-type: application/json" -H 'X-API-KEY: <API_KEY>' https://app.timefold.ai/api/models/pickup-delivery-routing/v1/route-plans [email protected]
{
  "config": {
    "run": {
      "name": "Original shift plan: extended stop example"
    }
  },
  "modelInput": {
    "freezeTime": "2027-02-01T09:20:00Z",
    "drivers": [
      {
        "id": "Carl",
        "shifts": [
          {
            "id": "Carl Mon",
            "startLocation": [33.77284, -84.42989],
            "minStartTime": "2027-02-01T09:00:00Z",
            "maxEndTime": "2027-02-01T11:00:00Z",
            "itinerary":[
              {
                "id": "Stop C",
                "kind": "STOP"
              },
              {
                "id": "Stop A",
                "kind": "STOP"
              },
              {
                "id": "Stop D",
                "kind": "STOP"
              },
              {
                "id": "Stop B",
                "kind": "STOP"
              }
            ]
          }
        ]
      }
    ],
    "jobs": [
      {
        "id": "job1",
        "stops": [
          {
            "id": "Stop A",
            "name": "Stop A",
            "location": [33.74648, -84.46461],
            "duration": "PT10M",
            "minStartTravelTime": "2027-02-01T00:00:00Z"
          },
          {
            "id": "Stop B",
            "name": "Stop B",
            "location": [33.65207, -84.46496],
            "duration": "PT10M",
            "minStartTravelTime": "2027-02-01T00:00:00Z"
          }
        ]
      },
      {
        "id": "job2",
        "stops": [
          {
            "id": "Stop C",
            "name": "Stop C",
            "location": [33.77911, -84.49644],
            "duration": "PT40M",
            "minStartTravelTime": "2027-02-01T00:00:00Z"
          },
          {
            "id": "Stop D",
            "name": "Stop D",
            "location": [33.65979, -84.46366],
            "duration": "PT10M",
            "minStartTravelTime": "2027-02-01T00:00:00Z"
          }
        ]
      }
    ]
  }
}
To request the solution, locate the ID from the response to the post operation and append it to the following API call: 
curl -X GET -H 'X-API-KEY: <API_KEY>' https://app.timefold.ai/api/models/pickup-delivery-routing/v1/route-plans/<ID>
{
  "metadata": {
    "id": "ID",
    "originId": "ID",
    "name": "Original shift plan: extended stop example",
    "submitDateTime": "2026-04-09T16:11:41.258457+02:00",
    "startDateTime": "2026-04-09T16:11:41.465113+02:00",
    "activeDateTime": "2026-04-09T16:11:41.465887+02:00",
    "completeDateTime": "2026-04-09T16:12:11.481571+02:00",
    "shutdownDateTime": "2026-04-09T16:12:11.481574+02:00",
    "solverStatus": "SOLVING_COMPLETED",
    "score": "0hard/0medium/-2533soft",
    "validationResult": {
      "summary": "OK"
    }
  },
  "modelOutput": {
    "drivers": [
      {
        "id": "Carl",
        "shifts": [
          {
            "id": "Carl Mon",
            "startTime": "2027-02-01T09:00:00Z",
            "itinerary": [
              {
                "id": "Stop C",
                "arrivalTime": "2027-02-01T09:07:26Z",
                "startServiceTime": "2027-02-01T09:07:26Z",
                "departureTime": "2027-02-01T09:47:26Z",
                "effectiveDuration": "PT40M",
                "travelTimeFromPreviousStandstill": "PT7M26S",
                "travelDistanceMetersFromPreviousStandstill": 6190,
                "minStartTravelTime": "2027-02-01T00:00:00Z",
                "load": [],
                "pinned": true,
                "kind": "STOP"
              },
              {
                "id": "Stop A",
                "arrivalTime": "2027-02-01T09:53:02Z",
                "startServiceTime": "2027-02-01T09:53:02Z",
                "departureTime": "2027-02-01T10:03:02Z",
                "effectiveDuration": "PT10M",
                "travelTimeFromPreviousStandstill": "PT5M36S",
                "travelDistanceMetersFromPreviousStandstill": 4671,
                "minStartTravelTime": "2027-02-01T09:20:00Z",
                "load": [],
                "kind": "STOP"
              },
              {
                "id": "Stop D",
                "arrivalTime": "2027-02-01T10:14:36Z",
                "startServiceTime": "2027-02-01T10:14:36Z",
                "departureTime": "2027-02-01T10:24:36Z",
                "effectiveDuration": "PT10M",
                "travelTimeFromPreviousStandstill": "PT11M34S",
                "travelDistanceMetersFromPreviousStandstill": 9640,
                "minStartTravelTime": "2027-02-01T09:20:00Z",
                "load": [],
                "kind": "STOP"
              },
              {
                "id": "Stop B",
                "arrivalTime": "2027-02-01T10:25:38Z",
                "startServiceTime": "2027-02-01T10:25:38Z",
                "departureTime": "2027-02-01T10:35:38Z",
                "effectiveDuration": "PT10M",
                "travelTimeFromPreviousStandstill": "PT1M2S",
                "travelDistanceMetersFromPreviousStandstill": 867,
                "minStartTravelTime": "2027-02-01T09:20:00Z",
                "load": [],
                "kind": "STOP"
              }
            ],
            "metrics": {
              "totalTravelTime": "PT42M13S",
              "travelTimeFromStartLocationToFirstStop": "PT7M26S",
              "travelTimeBetweenStops": "PT18M12S",
              "travelTimeFromLastStopToEndLocation": "PT16M35S",
              "totalTravelDistanceMeters": 35183,
              "travelDistanceFromStartLocationToFirstStopMeters": 6190,
              "travelDistanceBetweenStopsMeters": 15178,
              "travelDistanceFromLastStopToEndLocationMeters": 13815,
              "endLocationArrivalTime": "2027-02-01T10:52:13Z"
            }
          }
        ]
      }
    ],
    "unassignedJobs": []
  },
  "inputMetrics": {
    "jobs": 2,
    "stops": 4,
    "drivers": 1,
    "driverShifts": 1,
    "pinnedStops": 1
  },
  "kpis": {
    "totalTravelTime": "PT42M13S",
    "totalTravelDistanceMeters": 35183,
    "totalActivatedDrivers": 1,
    "totalUnassignedJobs": 0,
    "totalAssignedJobs": 2,
    "assignedMandatoryJobs": 2,
    "totalUnassignedStops": 0,
    "totalAssignedStops": 4,
    "assignedMandatoryStops": 4,
    "travelTimeFromStartLocationToFirstStop": "PT7M26S",
    "travelTimeBetweenStops": "PT18M12S",
    "travelTimeFromLastStopToEndLocation": "PT16M35S",
    "travelDistanceFromStartLocationToFirstStopMeters": 6190,
    "travelDistanceBetweenStopsMeters": 15178,
    "travelDistanceFromLastStopToEndLocationMeters": 13815
  }
}

modelOutput contains Carl’s updated shift itinerary.

Stop C took much longer than expected, so Stop A, Stop D and Stop B are all scheduled for later in the day.

Next