A light red background colour for any cell in the Crossfall Correction Report is displayed when that value is in violation of permitted design constraints and requires your attention. Possible violations are:
Slope Difference is greater than Slope Tolerance
Relative Gradient is greater than Maximum Relative Gradient
Accepted Relative Gradient is greater than Maximum Relative Gradient
Lane Break Slope is greater than Maximum Lane Break slope
Note: Lane Break Slope at the Crown is not assessed for violations.
Yellow
A yellow background colour for any cell in the Crossfall Correction Report is displayed when Ideal Crossfall is not Equal to Corrected Crossfall.
Font Colour
Green
A green font colour is applied to the alpha-numeric value show in any cell of the Crossfall Correction Report that has been modified or re-calculated. This will occur when:
Accepted Slope was modified manually in the Crossfall Correction Report.
Accepted Relative Gradient was re-calculated because Accepted Slope was modified.
Lane Break Slope was re-calculated because Accepted Slope was modified.
LL2 | LL1 | RL1 | RL2
Controls the visibility of lanes and lane break transitions.
Chainage
Specifies the rehab corridor region road chainage.
Existing Ground (EG) Slope
The crossfall (%) of the existing ground profile, calculated from the inside edge of a lane to outside edge of a lane.
Ideal Slope
The desired crossfall (%) for the finished ground profile.
Slope Tolerance
The maximum change in crossfall to the existing ground profile crossfall (%) that you want to design for. This is often compared against the Slope Difference between Existing Ground Slope and Ideal Crossfall.
Difference
The Ideal Crossfall minus Existing Ground Slope.
Corrected Crossfall
The adjusted crossfall (%) for the road profile, which has been optimised to match, as closely as possible, the rehab subassembly parameters you specified.
Relative Gradient
The change in Corrected Crossfall (%) between two road chainages, relative to the distance in length between the chainages.
Note: This is calculated as the absolute value for (Corrected Slope Current – Corrected Slope Preceding) divided by the Length between 2 chainages.
Accepted Slope
The accepted crossfall for the finished ground profile. By default, the Accepted Slope (%) is equal to the Corrected Crossfall (%) unless you manually modify the Accepted Slope in the Crossfall Correction Report tab of the Rehab Manager. This is the only editable value in the Crossfall Correction Report tab.
Accepted Relative Gradient
The change in Accepted Slope between two road chainages, relative to the distance in length between the chainages.
Note: This is calculated as the absolute value for (Accepted Slope Current – Accepted Slope Preceding), divided by the length between the two chainages.
Lane Break Slope
The difference in Accepted Slope between two adjacent lanes. Calculated as Inner Lane Accepted Slope minus Outer Lane Accepted Slope.