Events are managed in ArcGIS Roads and Highways in feature classes called event feature classes, which are registered in the same geodatabase as the LRS.
ArcGIS Roads and Highways manages the shape of the feature based on the route, measure, and to and from dates. For external events outside of the geodatabase with the LRS, a read-only connection to the source event data is required. The required source event data differs depending on the event type being registered. The required fields for each event type are listed in the following sections.
Minimum event fields
The minimum event fields are as follows:
Field | Data Type | Length | IsNullable | Description |
---|---|---|---|---|
Event ID | String | Between 32 and 255 | No | The unique ID for each event record. |
Route ID | String | Length of the Network RouteID field or greater | No | The unique ID for each route in the network. |
From Date | Date | 8 | Yes | The date that the event becomes active on the route. |
To Date | Date | 8 | Yes | The date that the event is retired on the route. |
Measure (point events only) | Any Numeric | No | The measure on the route where the event is located. | |
From Measure (line events only) | Any Numeric | No | The measure on the route where the beginning of the event is located. | |
To Measure (line events only) | Any Numeric | No | The measure on the route where the end of the event is located. | |
Location Error | String | 100 | Yes | The location error for the event. |
Event referent fields
When registering events, you can store the event location based on its offset from another location. The offsets can be based on x- and y-coordinates, a station, the length from the beginning of an event, other LRS events, intersections, or another point feature class.
To enable storing referent locations with an event, the following fields are required:
Field | Data Type | Length | IsNullable | Description |
---|---|---|---|---|
Referent Method (point events only) | Short Integer | 5 | Yes | The method for referencing the offset feature. This can be x,y coordinates, stationing, length, LRS Network, event, intersection, or other point feature classes. |
Referent Location (point events only) | String | Between 50 and 255 | Yes | The location of the offsetting feature. This can be an x,y coordinate, feature or event ID, or intersection ID. |
Referent Offset (point events only) | String | Between 50 and 255 | Yes | The offset measure. Saved in the unit of measure configured when registering an event and configuring the offset fields. |
From Referent Method (line events only) | Short Integer | 5 | Yes | The method for referencing the offset feature. This can be x,y coordinates, stationing, length, LRS Network, event, intersection, or other point feature classes. |
From Referent Location (line events only) | String | Between 50 and 255 | Yes | The location of the offsetting feature. This can be an x,y coordinate, feature or event ID, or intersection ID. |
From Referent Offset (line events only) | String | Between 50 and 255 | Yes | The offset measure. Saved in the unit of measure configured when configuring offset fields. |
To Referent Method (line events only) | Short Integer | 5 | Yes | The method for referencing the offset feature. This can be x,y coordinates, stationing, length, LRS Network, event, intersection, or other point feature classes. |
To Referent Location (line events only) | String | Between 50 and 255 | Yes | The location of the offsetting feature. This can be an x,y coordinate, feature or event ID, or intersection ID. |
To Referent Offset (line events only) | String | Between 50 and 255 | Yes | The offset measure. Saved in the unit of measure configured when configuring offset fields. |
Stationing event fields
When registering an event that uses stationing, all of the fields from a route and measure point event are required in the source event data. The following fields are required for an event that uses stationing:
Field | Data Type | Length | IsNullable | Description |
---|---|---|---|---|
Station | String | Any | Yes | The stationing value for the station. |
Back Station | String | Any | Yes | The back stationing value for the station. This value is populated when an equation point is present at the station location. |
Station Direction | String | Any | Yes | The field used to designate if stationing values increase in the opposite direction of the increase in measure on routes. |