Reassigning a route

A reassignment is the way to take a portion or all of a route and assign it to another route. One example of a route reassignment is when administrative boundaries change and you need to redesignate the portion that now falls on the other side of a boundary. Routes or portions of routes can be reassigned to existing routes or new routes. In addition to reassigning the route, the Reassign Route tool can update calibration points and apply end user configured event behaviors located along the reassigned route. For more information, see Event behaviors.

Note:

• The Network layer is made visible in the ArcMap table of contents.
• The source route is the route that will have a segment removed from it.
• The target route is the route in which the segment removed from the source route is added.

Steps:

1. Start ArcMap and set up your editing environment for using Roads and Highways.
2. Start an edit session and use the ArcMap navigation controls to zoom to the route portion you want to reassign.

   For more information on how to start an edit session, see About edit sessions.

3. Click the Networks drop-down arrow on the Roads And Highways Editing toolbar to choose the LRS Network layer you want to edit.
4. Click the Reassign Route button on the Roads And Highways Editing toolbar.

   The Reassign Route dialog box appears.

5. Type the date in the Effective Date field.

   This date indicates the date of reassignment of the source route. You can also use the Calendar drop-down menu to enter an effective date.

   The time is automatically set to 12:00:00 AM.

6. Enter a route ID.
   • Type a route ID in the Route ID text box.
   • Use the Select Location tool to select the route you are going to reassign to another route.
     Note:

     If a message appears that is related to acquiring locks, the need to reconcile, or not being able to acquire locks, Roads and Highways conflict prevention is enabled. For more information about these messages, see Conflict prevention in Roads and Highways for Desktop.

     Note:

     Go to step 10 if you want to reassign the complete route.

7. Enter a from measure.
   • Type a From Measure value in the From Measure text box.
   • Use the Select Location tool to click the from measure of the route portion you want to reassign.

   A light pink dot is placed at the location.

8. Enter a to measure.
   • Type a To Measure value in the To Measure text box.
   • Use the Select Location tool to click the To Measure of the route portion you want to reassign.

   A dark pink dot is placed at the location.

9. Choose whether you want to recalibrate the remainder of the reassigned route downstream of the reassigned portion.
   • Check the Recalibrate route downstream check box to recalibrate the remainder of the reassigned route downstream of the reassigned portion.
   • Uncheck the Recalibrate route downstream check box if you do not want to recalibrate the remainder of the reassigned route downstream of the reassigned portion.
10. Choose whether you want to use the whole route in the reassignment.
    • Check the Use whole route check box if you want to reassign the entire route.
    • Uncheck the Use whole route check box if you want to reassign only a portion of the route.

    If you opt to use the whole route, the From Measure and To Measure will automatically populate with the From and To Measures of the reassigned route.

11. In the Target Route Parameters frame, enter a route ID.
    • Type a route ID in the Route ID text box.
    • Use the Select Location tool to select the route to which you are going to assign the segment.
12. Enter a From Measure of the target route reassignment location.
    • Type a from measure in the From Measure text box.
    • Use the Select Location tool to click the From Measure of the route portion you want to reassign.
    • If you do not know the From Measure, you can allow Roads and Highways to suggest the From Measure. The From Measure is calculated as the source geometry length minus (-) the To Measure.
      1. Type a To Measure value.
      2. Click the Calculate button.
    Note:

    • If you are filling a gap, this value will be equal to the measure at the beginning of the gap.
    • If you are adding the reassigned route to the end of the target route, this value will be equal to the end measure of the target route.
    • If you are creating a new route or adding the reassigned portion to the beginning of the target route, this value will be 0.

13. Enter a To Measure of the target route reassignment location.
    • Type a To Measure value.
    • Use the Select Location tool to click the To Measure of the route portion you want to reassign.
    • If you do not know the To Measure, you can allow Roads and Highways to suggest the To Measure. The To Measure is calculated as the source geometry length plus (+) the From Measure.
      1. Type a parameter To Measure value.
      2. Click the Calculate button.
    Note:

    • If you are filling a gap, this value will be equal to the measure at the end of the gap.
    • If you are creating a new route or adding the reassigned value to the end of the target route, this value will be equal to the new end measure of the route.
    • If you are adding the reassigned route to the beginning of the target route, this value will be equal to the total length in the linear referencing method (LRM) measure units of the reassigned portion.

14. Choose whether you want to recalibrate the remainder of the reassigned route downstream of the reassigned portion.
    • Check the Recalibrate route downstream check box to recalibrate the remainder of the reassigned route downstream of the reassigned portion.
    • Uncheck the Recalibrate route downstream check box if you do not want to recalibrate the remainder of the reassigned route downstream of the reassigned portion.

    The Reassign Route dialog box is fully populated.

15. If you want to apply measure behaviors to the route you are reassigning, leave the Do not apply event measure behaviors box unchecked. If you do not want to apply measure behaviors along the route, check the box.
16. Click OK.

    The portion of the reassigned route has now been added to the target route.
Note:
Reassign route does not reverse the direction of calibration. As an alternate workflow, you can choose to reverse the route, then recalibrate the route. If you are only reassinging a portion of the route, you can do the following:
1. Reassign a portion of the route to a temporary route.
2. Reverse the temporary route.
3. Reassign the route to the target route.