Add Distance Break

Distance Breaks are a way to model discontinuities in linear referencing routes. They enable logical connectivity to be maintained where there are gaps in routes. Such a discontinuity may occur, for example, in one route where two routes have a common element at a staggered intersection.

The appearance of a distance break is similar to that of a Network Element in that they have a Unique Reference, a Start and End Node, a Length measure and a Route offset, but as they are not physical entities on a Network, no objects, e.g. Asset records, may be located on them.

Distance breaks on a Route group will normally have a Length of '0' meters. This will enable the route offset or displacement values for the Route to be derived as if no discontinuity existed. If Distance Breaks are added to an Inspection Route group for example, they may have a measured value, as the 'Break' in the Inspection Route must still be driven or walked. This will enable the route offset or displacement values for the Route to be derived, based on the actual route driven or walked.

Note: When a Distance Break is added, the Group must be re-sequenced using the Resequence command. This will order the member Elements correctly within the Route.

To add a distance make sure you're in Spatial Editing mode for the appropriate layer.

Click the Edit Datum Group button .

Click the datum for which you want to add a distance break, and select Show Attributes from the radial context menu. A dialog for the group opens to the General tab.

In the Members tab of the Datum Group Attributes dialog.

Click the Members tab and click the datum in the list to highlight it. Click the Actions menu dropdown and select Add Distance Break.

The Add Distance Break dialog opens.

This dialog consists of the following controls:

Start Node: The Start Node of the Distance Break needs to be entered here. Depending on the currently selected member element this value will default to the End node of the selected datum element. To change this you can click on the button next to it to display a list of available nodes.
End Node: The End Node of the Distance Break needs to be entered here. Depending on the currently selected member element this value will default to the start node of the next element. To change this you can click on the button next to it to display a list of available nodes.
Length: Enter the required length of the Distance Break. The default is '0'.
Start Date: Enter the Group membership Date of the Distance Break. This will default to today's date. You can click on the down arrow to select a date from the calendar.

When the required information is entered, click Add. A confirmation message appears. Click Yes to continue. The dialog closes and a success message appears onscreen.