Available with Location Referencing license.
The activity of updating the route geometry based on aerial imagery, as-built drawings, or input from field data collectors in a manner that does not change measures can be achieved by direct modifications to the centerline. This is known as cartographic realignment. ArcGIS Pipeline Referencing allows you to change the shape of centerlines and preserve the calibration of the underlying routes as they existed before the cartographic realignment was applied. The results are achieved by editing the geometry of the centerlines that are associated to the route.
You need the centerline feature class visible in the table of contents to do cartographic realignment.
- Add the
centerline and network feature classes to a map.
You can open a map in which the centerline and network feature classes are already present.
The Pipeline Referencing information model expects only one centerline at any given location. Make sure the centerlines used for your edit are not overlapping with other centerlines in your LRS.
- Zoom in to the location of the alignment change.
- Uncheck the network layer in the Contents pane.
- Check the Centerline layer in the Contents pane.
- Select the centerline feature for the edit.
- Double-click the centerline's edge.
The selected centerline's vertices appear.
- Edit the vertices of the selected centerline to match the correct alignment of the route.
You can do this by adding and deleting the vertices and by modifying segments. You can also use the geometry editing tools available in ArcGIS Pipeline Referencing.
- After editing the vertices to match the proposed alignment of the route, right-click anywhere on the map and click Finish.
If there are one or more calibration points in the cartographic realigned section, you will be prompted to either delete or proportionally snap the affected calibration point to the new realignment.
- Check the check box next to the network layer in the Contents pane.
The route is now cartographically realigned.
- After centerlines are updated, the route shapes in all networks are also updated. However, the event shapes for events and locations of the ArcGIS Pipeline Referencing managed intersections are not updated until you run the Apply Event Behaviors and Update Intersection Points geoprocessing tools, respectively.
- If you do not have any referent offset events in the ALRS and want to update the intersections on the basis of the cartographic realignment, you can use the tools discussed in Updating an LRS intersection class and Update Intersection Points to do so.
- It is also important to note that when the centerlines are edited, all routes in all networks, across all times, are modified accordingly.
- If performing a cartographic realignment with conflict prevention enabled, locks will be acquired on all routes associated with the centerline being edited. It is recommended to perform a single cartographic realignment per edit to allow the associated routes to be locked properly, or to acquire all necessary locks in advance.
If a message appears that is related to acquiring locks, the need to reconcile, or not being able to acquire locks, conflict prevention is enabled. For more information, see Conflict prevention.