Expand an arm and click Levels in the left hand pane. The levels page is displayed.
By default, Autodesk Vehicle Tracking takes the arm elevation and longitudinal gradient at the Deviation Point from the existing surface. To specify a different level or gradient, clear Elevation and Grade from Existing Surface and enter the required values in Elevation and Grade. Grade is measured towards the roundabout and a positive gradient is increasing level.
The arm typically has a crown line and crossfalls to the nearside and offside. Enter these values as percentages in Crown to Nearside and Crown to Offside.
In all cases the Max and Min values represent the limiting values from the adopted design standard.