Extending a route

Extending a route involves adding length to the beginning or the end of the route. As with other editing activities, you have the option of using a redline or not. Source geometry is required to extend a route.

Steps:

1. Start ArcMap and set up your editing environment for using Roads and Highways.
2. Use the ArcMap navigation controls to zoom to the route you would like to extend.
3. Choose an LRS Network layer.
4. Choose Extend Route in the Activity Type drop-down list to set your edit activity.
5. Select a redline feature.
   
6. Select a source geometry feature.
   
7. Click theApply button .

   The Extend Route dialog box appears.

   
8. Define the From Measure. There are many ways to define the From Measure as outlined below:

   Redline	If a redline is selected, the From Measure that is displayed is pulled from the From measure column in the redline attributes. Note: If you select both a redline and one or more source geometry features, the redline attributes take precedent and is input as the From Measure. If the redline feature does not have a From measure column or the field is NULL, the From measure is auto-populated as 0. You can change the method by which the From Measure is calculated using suggested measures. Alternatively, you can reset your selection and select only the source geometry to pull the From Measure from the source geometry length.
   Source geometry	If no redline is selected and one or more source geometry features are selected, the From measure that is displayed is pulled from the source geometry attributes. Note: If a redline and a source geometry is selected, the From Measure is pulled from the redline attributes. You can change the method by which the From Measure is calculated using spatial selection or suggested measures.
   Suggested measures	If you do not know the From Measure, you can let Roads and Highways suggest the From Measure. The Calculate tool returns the From Measure by calculating the source geometry length minus (-) the To Measure. Optionally enter a To Measure. Next to the From Measure, click Calculate .

   When you hover the pointer over the From Measure field, text appears at the bottom of the dialog box to let you know how the From Measure was calculated.

9. Define the To Measure. There are many ways to define the To Measure as outlined below:

   Redline	If a redline is selected, the To Measure that is displayed is pulled from the To measure column in the redline attributes. Note: If you select both a redline and one or more source geometry features, the redline attributes take precedent and is input as the From Measure. If the redline feature does not have a From measure column or the field is NULL, the From measure is auto-populated as 0. You can change the method by which the To Measure is calculated using suggested measures. Alternatively, you can reset your selection and select only the source geometry to pull the To Measure from the source geometry length.
   Source geometry	If no redline is selected and one or more source geometry features are selected, the To measure that is displayed is pulled from the source geometry attributes. Note: If a redline and a source geometry is selected, the To Measure is pulled from the redline attributes. You can change the method by which the To Measure is calculated using spatial selection or suggested measures.
   Suggested measures	If you do not know the To Measure, you can let Roads and Highways suggest the To Measure. The Calculate tool returns the To Measure by calculating the source geometry length plus (+) the From Measure. Optionally enter a From Measure. Next to the To Measure, click Calculate .

   When you hover the pointer over the To Measure field, text appears at the bottom of the dialog box to let you know how the To Measure was calculated.

10. Verify the attributes in the form and click OK.

    The route is extended based on the source geometry.