Slave edge control to horizontal alignment.
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RD_EDGESLAVESUPER |
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This function is the alternative to Edit Super. It allows you to 'slave' the control data to the horizontal alignment information. This 'slaved' data is then accessible in the spreadsheet, and can subsequently be modified using Edit Super.
For each curve on the horizontal alignment, the Beginning (BCC) and End (ECC) Chainage display. If you are using the Design Criteria, the following is automatically calculated according to the design criteria and design rules you've
stipulated:
Superelevation development length INTO the curve.
% of that development length that should take place before the BCC.
Runoff length for the superelevation OUT of the curve.
% of that runoff length that should take place after the ECC.
The maximum value (%) that the superelevation attains in the curve.
Civil Designer can also handle Reverse Curves, Broken-Back curves and Compound curves. The program automatically checks for the above conditions and applies the appropriate design.
Once all the curves have been entered, the program converts the information into spreadsheet layout. The data in the spreadsheet can be viewed or edited. Only the Super Elevation spreadsheet is modified during Slave Super. It must be emphasized that the edge control data, once it is in spreadsheet form, is entirely independent of the horizontal curve data, and does not interfere with the curve information in any way.
Procedure
The Slave Super settings display.
Click Recalculate All to recalculate the superelevation grades and development lengths for all the horizontal curves. Alternatively, click Recalculate and Next or Previous to scroll through the curves and recalculate them one by one.
When clicking Recalculate or Recalculate All, the values are calculated automatically, provided that the Design Criteria are active. Any of these values can, however, be modified. Click Close to continue.
If the percentage development inside the curve would cause the superelevation length to exceed the actual curve length, the percentage development before the BCC and after the ECC are adjusted to fit.
If the entered data causes the superelevation for a curve to overlap with that of the previous curve, the following message displays.
Click Yes to ignore the curve and continue; or No to cancel the routine, but retain the control data up to this point.
The program prints warnings to the Output Bar should any Design criteria be exceeded.
