Configuring event replacement

While performing roadway maintenance, sometimes a road section is replaced by a new section.

During roadway replacement, the events that were part of the replaced section can be left as is, retired, or retired and replaced using the Event Replacement widget. The measures for the route do not change.

Event replacement scenario

The configuration of event replacement requires categorizing the events in the map service into three categories: As Is, Retire, and Retire and Replace using the Configure Event Replacement widget.

Before event replacement

The following diagram illustrates a roadway section before replacement.

Roadway events before replacement are shown.

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		GGG	1/1/2000	Null
Event 2	2A	2		SSS	1/1/2000	Null
Event 3	3A	3		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 the measures 0 and 5 needs to be replaced on 12/31/2017, as shown below.

The section of the road to be replaced and affected events are shown.

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.

Event replacement on a new roadway section is shown.

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 old event.
F	Event 5	The whole 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 Event Replacement widget.
I	Event 6	The whole 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 whole 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 Event Replacement widget.

Categorizing events

The configuration of event replacement requires categorizing the events in the map service into three categories: As Is, Retire, and Retire and Replace.

To configure event replacement, complete the following steps:

1. Ouvrez Event Editor et, à l’invite, connectez-vous à votre organisation ArcGIS.
2. Click the Edit tab.
3. In the Edit Events group, click the Configure Event Replacement button .

   The Configure Event Replacement widget appears.

   Conseil :

   All the line events and point events available in the map service are listed in the Available Event Layers list.

   

   Opening the Configure Event Replacement widget

   Conseil :

   If a default configuration has been created, click Default to load it. Click Reset to return to the last saved configuration in the map service.

4. Click Shift or Ctrl and click and drag multiple line events from the Available Event Layers list to the Retire Events list.

   

   Choosing events for retirement

   You can also choose event categories and use the arrow keys to move chosen line events into the lists from left to right or up and down between the Retire Events and Retire and Replace Events lists.

   Events placed in the Retire Events list are retired when events in the category are replaced using the Event Replacement widget.

   

   Choosing events for retirement and replacement

5. Click Shift or Ctrl and click and drag multiple line events from the Available Event Layers list to the Retire and Replace Events list.

   Conseil :

   Only line events can be retired and replaced.

   

   Event replacement configured

   Remarque :

   Event layers left in the Available Event Layers list are left as is. If no events are configured to retire or to retire and replace, you'll be unable to save using the Event Replacement widget.

6. Optionally, click the arrow for any event layer in the Retire and Replace Events list to expand it.

   An expanded list of fields in the event layer appears.

   

   Expanded event layer fields

   You can use these check boxes to show or hide the fields when performing the event replacement operation.

   Remarque :

   Some attribute fields are required fields, which is denoted by the asterisk (*) symbol. A required field is a nonnullable field with no default value. Visibility can't be changed for required fields.

7. Click Save to save the event replacement configuration.
8. Click Export to export the configuration to an LRER file. Give the configuration file a name such as eventplacement1.lrer.

   Remarque :

   The event replacement configuration is saved in the local browser’s download folder.

9. Copy the exported file to the Event Editor folder.
10. Open the configuration file (config.json) in a text editor such as Microsoft Notepad.

    Learn more about configuring the Event Editor web app

11. Type the LRER file name with the file extension in the eventReplacement section:

    

    Remarque :

    The Default button defaults to the event replacement configuration provided in the Event Editor configuration file.

    The Reset button restores the last saved event replacement configuration for that browser.

    You can edit the default event replacement configuration and use it in your browser.