Cartographic realignment

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 called cartographic realignment. Esri Roads and Highways 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.

注:

You need the Centerline feature class visible in the ArcMap table of contents to do cartographic realignment.

步骤:

1. Start ArcMap.
2. Set up the editing environment to use Roads and Highways.
3. Use the ArcMap navigation tools to zoom to the location of the alignment change.

4. Uncheck the Network layer in the table of contents.
5. Check the Centerline layer in the table of contents.
6. 单击编辑器 工具条上的编辑工具 ，并单击要素。
7. Double-click the centerline's edge with the Edit tool.

   The selected centerline's vertices appear.

8. 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 for Desktop.

9. After editing the vertices to match the proposed alignment of the route, right-click anywhere on the map and click Finish Sketch.

10. Check the Network layer in the table of contents.

    The route is now cartographically realigned.

    注:

    • After centerlines are updated, the route shapes in all networks are also updated. However, the event shapes for internal events are not updated until you click the Update Events button or save your edits. For more information, see Updating event shapes.
    • It is also important to note that when the centerlines are edited, all routes in all networks across all times are modified accordingly.