Basic Superelevation Options
The following options display on the Superelevation tab in the Alignment Editor when you do not click the Advanced checkbox. You use them to specify parameters for one or more superelevated curves in an alignment. See Create and Edit Superelevations for more information.
Note: In addition to typing values into the fields on the Superelevation tab, you can click in the Plan View to select values.
Note: Click the Superelevation Diagram button located in the upper right-hand corner of the tab to view a diagram of the superelevation as you define parameters for it. For more information, see Superelevation Diagram.
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Options |
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| Normal cross slope |
Enter the normal cross slope of the road when not in superelevation. The normal cross slope you specify here is referenced by all of the superelevated curves in the alignment. Any changes you make to this field affect all of the superelevated curves. If you delete the normal cross slope, the superelevation is removed from the alignment. Note: This normal cross slope value you enter is used in the Superelevation Diagram view. It does not replace the slope value specified in the corridor template instructions. |
| Maximum superelevation |
Enter the maximum rate of superelevation for the curve in terms of percent slope. |
| Vertical curve length |
Enter the length of the parabolic vertical curve that will be applied at each break point in the superelevated curve to smooth the transition. The software also draws these vertical curves in the superelevation diagram at the break points. |
| Begin superelevation transition |
Enter the station at which superelevation transition begins. |
| Begin maximum superelevation |
Enter the station at which maximum superelevation begins. |
| End maximum superelevation |
Enter the station at which maximum superelevation ends . |
| End superelevation transition |
Enter the station at which superelevation transition ends. |
