The ability to view rail wear data within your digital twin provides users with critical insight into the rail network's operations. This data can be used to help with decision making with regards to safety concerns and controlling maintenance costs with rail replacement.

While your WillowTwin™ for Rail platform cannot predict where rail wear may occur, it can provide the data to be used as a tool to assist users in determining where and when it may impact operations.

Rail Wear Map Layer

Users can view areas of rail wear exceedances on the map by enabling this layer from the map filters

1. Click the map filter button
2. Click the Select a date range button at the top of the menu
   1. Use the calendar to select a custom date range OR
   2. Click one of the pre-set date options just below the calendar
   3. To change the date selection, click Clear in the bottom left and reselect as needed
   4. To collapse the calendar view, click the date range highlighted in purple at the top of the menu
3. Click the layer icon beside Rail Wear
4. Click the right arrow on the far right to access the sublayer options
5. Click the layer icon beside the desired sublayer (Note: users may need to zoom in/out on the map to see the heatmap, 50m or 1m ratings layers)
6. Optional: Click the Legends button  in the top right to display a legend of how the overlaid data will be presented

Sample rail wear exceedances heatmap

Rail Wear Graphs

Rail wear data is also available in graph form, and also allows users to see critical information on the wear taking place. In order to see this data, users will need to ensure the Edges layer has been enabled from the map filters, to do so:

1. Click the map filter button
2. Click the layer icon beside Reference Layers
3. Click the right arrow on the far right of the Reference Layers
4. Click the toggle icon  to the right of the Edges layer
5. Click the X in the top left corner of the map filter menu to close this window

Next, navigate to the Rail Wear tab, to do this: 

1. Click the Assets tab in the main menu bar, then the Track Measurements sub-tab
2. Click the Rail Wear tab in the window that appears in the bottom half of the screen
   1. Click and drag the grab bar icon in the top center of the rail wear window to pull the window up/down to see more or less of the map
3. Zoom to the appropriate level on the map to select a segment of track
4. Click on a section of track to view graph data
   1. Graphs should automatically load if there is data to view

Users can click the maximize icon in the top right corner of the Rail Wear tab window to make this area full screen.

Changing the track Chainage

Users can adjust the distance of chainage between two points to show more or less data in the graphs, up to a maximum of 2 Kilometers. This can be done by:

1. Manually updated the From and To values
2. Click and drag the orange edges to adjust the length or click and drag in the center of the selector to change the location
3. Click the + or - to adjust the distance

Viewing Graph Data

Users can display graphs individually or all at once, by selecting them from the graph selector drop-down field in top left, as well, users can toggle the display to show the graphs either horizontally or vertically. The graphs users can view include:

• Section wear (east and west)
• Horizontal wear (east and west)
• Vertical wear (east and west)

A legend just above the graph explains the the color-coding

• Measurements below the blue threshold line will appear as white
• Measurements above the blue threshold line, but below the red, will appear as blue
• Measurements above the red threshold line will appear as red