Creating LRS Networks

Each LRS Network is created by combining centerline features with route definitions. Calibration points are used to apply the measures to the routes in the LRS Network. Before you can create an LRS Network, you must first identify your route relationships and create an ALRS. The following steps will help you learn how to create your first LRS Network.

  1. Open the ALRS Properties dialog box by right-clicking the ALRS and clicking Properties.

    The ALRS Properties dialog box appears.

    ALRS Properties dialog box
  2. Click the Networks tab.
    ALRS Properties Networks tab
  3. Click Add.

    The Create New LRS Network dialog box appears.

    Create New LRS Network dialog box
  4. Give the new network a name by typing a suitable name in the LRS Network name text box. If networks have already been created, they will appear in the drop-down list.
    LRS Network Name drop-down list

    The first time you create a network in your ALRS, the drop-down list may be empty. You may create, remove, and re-create your networks many times throughout the life cycle of your LRS. To avoid having to repopulate NetworkIds on centerline sequence and calibration point, the ALRS remembers the networks you have created and the order in which you created them. This information is stored in the dLRSNetworks domain on your geodatabase. You can purge this list by deleting the coded values in the domain.

  5. Set the units of measure.
  6. Set the time zone if needed.
  7. Add fields from the route table to create the RouteId using the Arrow button Arrow to move available fields from the list box on the left to RouteId field in the list box on the right.
    • Choose one field if your RouteIds are made up of only one field.
    • Choose multiple fields to combine fields together to create an intelligent key for your RouteId. Use the Up button Up and Down button Down to put the fields in the proper order.
    • You can also add a separator character to separate your fields.

    It is important that you construct your RouteId field exactly the way it will appear in your event tables. The RouteId is the only thing that links event data to the LRS. If it is not set properly, your events will not draw.

    Populated Create New LRS Network dialog box
  8. Click OK to complete the creation of the network.

    The new LRS Network appears in the ALRS Properties dialog box.

    Populated ALRS Properties Networks tab

    The new LRS Network (LRSN_<NetworkName>) appears as a feature class in the ALRS geodatabase.

    LRS Network stored as feature classes in a geodatabase