Calibrate Route

Feature Description

Calibration is the process of adjusting route measurements to align with known reference points by reading scale values stored in the attribute table of the reference point dataset. For more information, see Calibrate Route Overview.

Feature Entry

  • On the Transport Analysis Tab -> Dynamic Segmentation group, click the Dynamic Segmentation button, then select Calibrate Route from the dropdown menu.
  • Toolbox -> Transport Analysis -> Dynamic segmentation tools: Calibrate Route; Or drag this tool to the model builder window and double-click the function icon.

Parameter Description

  • Source Dataset: Select the datasource, dataset, and route ID field for the line data used to generate route data.
  • Reference Point Dataset: Select the datasource, dataset, route ID field, and measure value field for the point dataset used to calibrate routes.
  • Set Other Parameters:
    • Calibration Method: Includes calibrate by distance and calibrate by measure. For details, refer to Calibrate Route Overview.
    • Error Field, Ignore Intervals Between Subobjects: Same as parameter descriptions in Generate Route. For specifics, see Generate Route.
    • Tolerance: Set calibration tolerance value and units.

      During calibration, you can specify a distance threshold called calibration tolerance. A reference point is considered within tolerance if its shortest distance to the route is less than this value. Otherwise, it's considered out of tolerance.

      Default tolerance values depend on the dataset's coordinate system. For details, see Tolerance Explanation.

    • Reserve Route Objects Not Passed by Reference Points: Determines whether to keep uncalibrated routes in the result dataset.

      Routes remain uncalibrated in these scenarios:

      • No reference points share the same route ID as the line segment.
      • All reference points with matching route IDs fall outside the calibration tolerance range.

      Users can choose whether to retain these uncalibrated routes based on research requirements.

  • Result Data: Configure output settings including result datasource and route dataset name.
  • Click Execute to run the operation after completing all settings.

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