Available with Location Referencing license.
When performing roadway maintenance tasks such as widening a section of highway, the events on a route may need to be retired or retired and replaced.
During roadway changes, events on an edited section of a route can be left as is, retired, or retired and replaced according to an event replacement configuration.
Event layers must be categorized on the Configure Replace Events dialog box before event replacement. The measures for the route do not change during event replacement.
Event replacement scenario
The configuration of event replacement requires categorizing the events in the feature service into three categories: As Is, Retire, and Retire and Replace.
Before event replacement
The following diagram illustrates a roadway section before replacement:
Before replacement, the roadway section has eight events, three point events (events 1-3), and five linear events (events 4-8).
Table 1: Event table before replacement
| Event layer | Event ID | From Measure | To Measure | Value | From Date | To Date |
|---|---|---|---|---|---|---|
Event 1 | 1A | 1 | N/A | GGG | 1/1/2000 | Null |
Event 2 | 2A | 2 | N/A | SSS | 1/1/2000 | Null |
Event 3 | 3A | 3 | N/A | HHH | 1/1/2000 | Null |
Event 4 | 4A | 0 | 10 | XXX | 1/1/2000 | Null |
Event 5 | 5A | 0 | 10 | YYY | 1/1/2000 | Null |
Event 6 | 6A | 0 | 10 | ZZZ | 1/1/2000 | Null |
Event 7 | 7A | 0 | 10 | QQQ | 1/1/2000 | Null |
Event 8 | 8A | 0 | 10 | WWW | 1/1/2000 | Null |
A road with measures from 0 to 10 exists. Various line and point events are present on the road.
During inspection, it was determined that a section of the road between measures 0 and 5 needs to be replaced on 12/31/2017, as shown below.
The events are placed in the following event replacement categories:
Table 2: Event replacement categories
| Retire | Retire and replace | Keep as is |
|---|---|---|
Event 2 | Event 5 | Event 1 |
Event 3 | Event 8 | Event 7 |
Event 4 | ||
Event 6 |
After event replacement
The results of replacing the road section and events are shown in the following diagram and in Table 3:
Table 3: After event replacement
| Event layer | Event ID | From Measure | To Measure | Value | From Date | To Date | Case |
|---|---|---|---|---|---|---|---|
Event 1 | 1A | 1 | GGG | 1/1/2000 | Null | A | |
Event 2 | 2A | 2 | SSS | 1/1/2000 | 12/31/2017 | B | |
Event 3 | 3A | 3 | HHH | 1/1/2000 | 12/31/2017 | C | |
Event 4 | 4A | 0 | 10 | XXX | 1/1/2000 | 12/31/2017 | D |
Event 4 | 4B | 5 | 10 | XXX | 12/31/2017 | Null | E |
Event 5 | 5A | 0 | 10 | YYY | 1/1/2000 | 12/31/2017 | F |
Event 5 | 5B | 5 | 10 | YYY | 12/31/2017 | Null | G |
Event 5 | 5C | 0 | 5 | YYYOO | 12/31/2017 | Null | H |
Event 6 | 6A | 0 | 10 | ZZZ | 1/1/2000 | 12/31/2017 | I |
Event 6 | 6B | 5 | 10 | ZZZ | 12/31/2017 | Null | J |
Event 7 | 7A | 0 | 10 | QQQ | 1/1/2000 | Null | K |
Event 8 | 8A | 0 | 10 | WWW | 1/1/2000 | 12/31/2017 | L |
Event 8 | 8B | 5 | 10 | WWW | 12/31/2017 | Null | M |
Event 8 | 8C | 0 | 5 | WWWOO | 12/31/2017 | Null | N |
Table 4: Explanation of event replacement
| Case | Event Layer | Explanation |
|---|---|---|
A | Event 1 | The event is left as is. |
B | Event 2 | The event is retired because it was in the Retire category. |
C | Event 3 | The event is retired because it was in the Retire category. |
D | Event 4 | The whole event is retired because it was in the Retire category. |
E | Event 4 | A new event is created for the existing section of the road, keeping the attribute values of the original event. |
F | Event 5 | The entire event is retired because it was in the Retire and Replace category. |
G | Event 5 | A new event is created for the existing section of the road, keeping the attribute values of the old event. |
H | Event 5 | A new event is created for the new section of the road with the new dates and attributes provided in the Replace Events pane. |
I | Event 6 | The entire event is retired because it was in the Retire category. |
J | Event 6 | A new event is created for the existing section of the road, keeping the attribute values of the old event. |
K | Event 7 | The event is left as is. |
L | Event 8 | The entire event is retired because it was in the Retire and Replace category. |
M | Event 8 | A new event is created for the existing section of the road, keeping the attribute values of the old event. |
N | Event 8 | A new event is created for the new section of the road with the new dates and attributes provided in the Replace Events pane. |
Categorize events
To configure event replacement, complete the following steps :
- In ArcGIS Pro, open the map that contains the feature service in which events will be retired or replaced.
- On the Location Referencing tab, in the Events group, click Configure Replacement
.The Configure Replace Events dialog box appears.
If no event replacement configuration exists, the Create New Replace Events dialog box appears on top of the Configure Replace Events dialog box where you can create a named configuration.
- Press the Shift key and click to select a range of events, or press the Ctrl key and click to select events out of order; then drag multiple line events from the Event Layers list to the Retire and Replace Events list.
You can also use the arrow buttons on the dialog box to move selected layers between the Event Layers list and other lists or to move line event layers up and down between the Retire Events and Retire and Replace Events lists.
Tip:
Click Reset to set the configuration to its original or last saved state.
Event layers that remain in the Event Layers list are left as is when event replacement is run.
- Press the Shift key and click to select a range of events, or press the Ctrl key and click to select events out of order; then drag multiple line events from the Event Layers list to the Retire and Replace Events list.
Tip:
Only line events
can be retired and replaced.
Note:
If no events are configured to retire or to retire and replace, you can't save the configuration.
- Optionally, click the arrow for any event layer in the Retire and Replace Events list to expand it.
An expanded list of editable event layer fields appears. Uncheck a check box to exclude it from the event replacement.
If default attribute values are configured, they are shown. Default values can be overwritten when using the Replace Events pane for event replacement.
Note:
Some attribute fields are required attribute fields
. A required attribute field is a nonnullable field with no default value. The check box for a required attribute field cannot be unchecked. - Click Save to save the event replacement configuration.
Note:
The event replacement configuration is saved to a folder at the path specified for Replace Events Folder Location. This folder location is the same as the active project's ArcGIS Pro project folder by default.
You can set Location Referencing options using the Location Referencing tab on the Options dialog box, .
If an .lrer file by the specified name doesn’t already exist, it is created using the name assigned in the Create New Replace Events dialog box.
- Optionally, click Save As to save the configuration to an .lrer file using a different name or location.
Share the saved event replacement configuration file so that others can place it at the location specified for Replace Events Folder Location.
To delete a replace events configuration, delete it from the folder location specified for Replace Events Folder Location.
- Optionally, click Set As Default to make this event replacement configuration the default for the project.
- Click Close
to close the Configure Replace Events dialog box.