Segment Snapped to Adjacent Segment - Same Layer

The Segment Snapped to Adjacent Segment - Same Layer quality control (QC Quality Control) check identifies line segments that are not snapped to another nearby line segment.

Tip: Projection-Based Unit is used in this check. Projection-Based Unit indicates the unit of measurement is pulled from the Spatial QC Projection this data target uses. If no Spatial QC Projection is used in this data target, the unit is pulled from the Data Target's projection.

To run this check, a line feature class is required.

Configurations for QC check parameters contain filters to prevent selecting incompatible field types.

The following parameters can be specifically configured for the Segment Snapped to Adjacent Segment - Same Layer QC check.

  • Run On: Non-configurable. This QC check inspects the target dataset.

  • Severity: Sets the importance level of this QC check’s fallouts. Critical fallouts prevent export package outputs but will still provide fallouts.

  • Line Layer Name: The name of the line layer this QC check should inspect.

  • Reporting Unique ID: A unique identifier in the layer that can be used to uniquely identify a singular feature.

  • Search Radius (Projection-Based Unit): The distance from a line segment’s start or end point used to locate nearby segments for snapping evaluation. Segments beyond this distance are ignored; those within it are checked for proper snapping and flagged if unsnapped.

  • Snapping Tolerance (Projection-Based Unit): The max distance two nearby line segments can be from each other before they are considered not snapped together. For example, setting this to 0.25 meters would allow any two lines within 0.25 meters of each other to be analyzed as being snapped together, creating no fallout. Default is 0. Accuracy is best when a value smaller than 1 is used.

  • Sensitivity Level: Determines how strictly this QC check reports segment snap connectivity issues.

    • Select High to flag all segments with minor gaps or partial connections.

    • Select Low to flag segments that are not connected to any other segment.

The following information is included for this QC check's fallout output.

  • QC check name
  • Description of the QC check
  • Unique ID as is defined in the source data
  • Feature class where fallout appears
  • Extended information providing more details about the fallout
  • Latitude and Longitude of the fallout's location

The examples below shows possible error messages you may receive when a record fails the Segment Snapped to Adjacent Segment - Same Layer check. The extended information provides the segment node and the distance in either square meters or feet of the adjacent segment.

Here is an image of fallout messages you may receive when a record passes or fails the Segment Snapped to Adjacent Segment - Same Layer QC check.