Stationing events

Available with Location Referencing license.

ArcGIS Roads and Highways supports the registration of point events with stationing fields in an LRS geodatabase in ArcGIS Pro.

Stationing is a system of measurement used for route layout and construction. Stations are reference points placed at regular intervals along the horizontal measurement of a route centerline.

Registering a stationing event is useful if you plan to use stationing as a method for creating and editing events in an LRS.

Tip:

You can create and edit stationing events using the Add Point Event tool or the ArcGIS Pro editing tools.

Stationing basics

Generally, the distance between two adjoining stations along a route is 100 feet.

For example, a station number of 10+34.05 depicts 1034.05 feet (10*100 + 34.05) away from the starting station.

Station numbers increase from west to east or south to north based on the cardinal direction of the overall route. A starting reference station is established first and all distances along the route centerline are measured from that point location.

Configuration of stationing events

Stationing events are configured by first adding required stationing fields to a point event feature layer. Once the stationing fields are in the point event feature layer, use the Enable Stationing Fields tool to enable stationing in that layer.

Field	Description
Station Field	This field establishes a starting reference station and all distances along the route centerline are measured from that station point as either ahead stations or back stations.
Back Station Field	When a station equation point is present at the station location, this field must be populated. This field is required even if the source data does not contain back stations. A station equation is a point on the centerline where the station numbers of one system change to the station numbers of another system. A station equation can be used at the connection between two projects in an organization. The equation point has a value for both projects expressed as ahead station and back station measures. For example, the following station equation point has ahead and back station measures: 139+55 Ahd and 140+55 Bck.
Station Value Direction Field	This field indicates the direction of increasing stations, that is, whether the station values increase toward the direction of calibration of the route. The values in this field indicate that the station values decrease toward the direction of calibration of the route. A blank value or no value indicates that the station values increase toward the direction of calibration of the route. Note: You can provide the values representing a decrease for the data using the Decreasing Station Values parameter in the Enable Stationing Fields tool.