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Overview ArcGIS Pipeline Referencing (APR) provides a GIS-enabled, linear referencing data management solution for pipeline organizations. It offers the following: LRS information model & web services Configuration, loading & transformation tools LRS web widgets and templates LRS Network and Event editing LRS data products Recent News This resources blog is updated for the latest ArcGIS Pro 3.7 and ArcGIS Enterprise 12.1 releases of ArcGIS Pipeline Referencing (May 2026). What’s new in ArcGIS Pro > Production > Pipeline Referencing What’s new in APR Server Location Referencing Issues Addressed What’s new blog Event Editor deprecation Pipeline Referencing Desktop APR extension to ArcGIS Pro: Getting Started LRS Data Model   >  Information Model Package Create LRS Components Event Behavior Route Editing Event Editing Calibration Point Editing Reporting tools > LRS data products  Conflict Prevention Location Referencing Toolbox APR tools branch versioning support APR tools filter and selection support APR tools licensing Pipeline Referencing Enterprise APR Server extension to ArcGIS Enterprise: Getting Started APR Server Experience Builder LRS widgets Event Editor (legacy app and is replaced by Experience Builder LRS widgets) APR REST API APR REST API Sample Complementary tools Gas and Pipeline Referencing Utility Network Foundation Get started using APR Foundation ArcGIS Utility Network ArcGIS Workflow Manager ArcGIS Data Reviewer System & Installs System Requirements > ArcGIS Pro | ArcGIS Enterprise Install ArcGIS Pro Install ArcGIS Enterprise   Build Experience Builder App > Configure Location Referencing widgets Configure Event Editor Web Application  (legacy app) Deploy Pipeline Referencing Foundation Enterprise Pro Release Date Pro Support Solution 12.1* 3.7 May-2026 May-2029 4.0 (UPDM2026) 12.0 3.6 Nov-2025 Nov-2028   11.5* 3.5 May-2025 May-2028 3.0 (UPDM2025) 11.4 3.4 Nov-2024 Nov-2027   11.3* 3.3* May-2024 May-2027 2.5 (UPDM2024) 11.2 3.2 Nov-2023 Nov-2026   *Network Management Release Plan    ArcGIS Pro Life Cycle Pipeline Operator Implementations Enbridge Gas Case Study Crestwood Case Study Sempra – SoCal Gas: presentation Atmos Energy: presentation For more insights check out the APR Videos section.  Other Resources Introduction to ArcGIS Pipeline Referencing Training Utility Network Integration Linear referencing in ArcGIS Field Maps Branch Versioning ArcGIS Pro Terminology Guide APR Enhancement Requests ... View more

LRS Feature Dataset Requirement A feature dataset is a collection of related feature classes that share a common coordinate system. Feature datasets are used to facilitate creation of controller datasets (sometimes also referred to as extension datasets), such as topology, utility network or pipeline referencing. Feature classes that are to be included in an extension dataset are first organized into a feature dataset. To support service-based editing of your data in Pipeline Referencing, certain feature classes in the LRS data model must reside in a feature dataset in your geodatabase. If the feature classes and tables are modeled in advance, the following feature classes must be contained in a feature dataset: Centerline, Calibration Points, Redline, Networks, Events, and Intersections. Reference: LRS information model   Spatial Reference When a feature dataset is created, you must define its spatial reference. This includes the coordinate system, either geographic or a specific projection, as well as coordinate units and tolerances for x-, y-, z-, and m-values. All feature classes in a feature dataset must share a common coordinate system, and the x,y coordinates of their features should fall within a common spatial extent. When you create a feature class in an existing feature dataset, the coordinate system is inherited from the feature dataset. Since measures and their precision are critical to the accuracy of any linear referencing method (LRM), the spatial reference, tolerance, and resolution settings for all these feature classes must align. This ensures that geometry and measures for routes, events, and intersections are correct in a linear referencing system (LRS) and remain in alignment. If any of the centerline, calibration point, redline, network, event, or intersection feature classes are modeled before they are registered with the LRS, ensure that the tolerance and resolution settings match. Reference: Tolerance and resolution settings   Implementation Considerations If you use the Create LRS geoprocessing tool to create your LRS and minimum schema items, these required feature classes are automatically placed in a feature dataset. If the LRS was created using ArcMap or ArcGIS Pro 2.5 or earlier, you need to move these feature classes into a feature dataset and run the Modify LRS geoprocessing tool to edit the LRS in ArcGIS Pro 2.6 or later. Additional modifications to the schema and/or APR re-configuration may be needed as part of this upgrade process. The Gas and Pipeline Enterprise Data Management ArcGIS solution follows the LRS information model requirements with required features in the UtilityNetwork feature dataset. The Gas and Pipeline Enterprise Data Management is a unified solution for both networked and linear referenced pipelines based on ArcGIS Pro 2.6, ArcGIS Enterprise 10.8.1, UPDM 2020, and Utility Network Release 4.    The PODS 7.0 is also compatible with the LRS information model requirements with required features in the Features feature dataset.  APR implementations on versions of ArcGIS Pro 2.5 or older allowed for features to be outside a single dataset. When upgrading to ArcGIS Pro 2.6, the GIS administrator will be prompted to run the geoprocessing tool to Modify LRS. The following Error 130159 will be seen if the data model is not modified per the dataset requirements discussed above.     LRS Intersection At ArcGIS Pro 2.6, you can now configure LRS intersection feature classes as well as generate and update intersections. The example below shows intersection of an LRS route with railroad layer.       The required fields for LRS intersection class are listed in the following table. Field Data Type Description Intersecting ID Guid The name of the intersection ID field. Intersection Name Text (1000) The name of the intersection. Route ID Text (1000) The unique ID of the route. Feature ID Text (1000) The unique ID of the intersecting feature. Feature Class Name Text (150) The name of the intersection point feature class. From Date Date The date the network became active. To Date Date The date the network was retired. Measure Double The measure on the dominant route where the intersection is located.   Here is a sample attribute table for the intersection of an LRS route with railroad layer. Redline At ArcGIS Pro 2.8, the redline feature class that is a APR information model core object,  must be z-enabled and cannot be m-enabled.   ... View more