Similar to the rail wear data seen in the previous article, the WillowTwin™ for Rail platform has the ability to display important data related to track geometry. This information can include data related to gauge, superelevation, twist, cross level and more. Engineers can use this data to help determine the appropriate courses of action in relation to safety and maintenance of the track network. 

Track Geometry Map Layer

Users can view track geometry exceedances on the map by enabling the 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 Track Geometry
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 Track Geometry Heatmap

Track Geometry Graphs

Track geometry 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 Track Geometry tab, to do this: 

1. Click the Assets tab in the main menu bar, then the Track Measurements sub-tab
2. Click the Track Geometry 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.

Graphs users can view include:

• Gauge
• Superelevation
• Line Ch1 (east and west)
• Line Ch2 (east and west)
• Top Ch3 (east and west)
• Top Ch4 (east and west)
• Twist (A and B)
• Cross Level

A legend explaining the color-coding may be seen just above the graphs, this can be toggled on/off by clicking the eyeball icon.

To the left of the graphs users can see the chainage and possibly any TSRs. If there are TSRs for the section of track that has been selected this will be represented by a bar indicating its location. Clicking on the TSR bar will open a tab on the left side of the screen displaying a Properties and Events tab; here, users can see more information for the section of track and details related to the temporary speed restriction.