Autodesk CIVIL3D Tutorial - Page 277
Exercise 2: Calculating Superelevation for an Individual Curve, Under Superelevation Curve Details
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In the drawing that is used with this exercise, the alignment has a fourth curve, for which superelevation has been calculated. You will make a change to the alignment that will cause the superelevation data of the fourth curve to be out of date, and then you will recalculate the superelevation data for that curve. For more information, see Calculating Superelevation Data Using the Wizard. This exercise continues from Exercise 1: Calculating Superelevation for an Alignment (page 262). Change the design speed 1 Open Align-Superelevation-2.dwg, which is located in the tutorial drawings folder (page 819). 2 Select the alignment. 3 Click Alignment tab ➤ Modify panel ➤ Superelevation drop-down ➤ Calculate/Edit Superelevation . The Create Superelevation wizard was not displayed because superelevation has already been calculated for the first three curves of this alignment. The Superelevation Curve Manager window is displayed. This window enables you to view and edit superelevation parameters on a curve-by-curve basis. By default, the window displays superelevation parameters for the first curve in the alignment. 4 Under Superelevation Curve, click Next twice. Notice that the window displays the parameters for the third curve, which is highlighted in the drawing. 5 Under Superelevation Curve Details, in the Design Speed row, click . In the Alignment Properties - Design Speed dialog box, you can change the design speed of the entire alignment, or add a new design speed at a specified station. In this exercise, you will increase the design speed for the end portion of the alignment and leave the existing design speed at the beginning of the alignment. 6 In the Alignment Properties - Design Speed dialog box, click . A second row is displayed in the Design Speeds table. Exercise 2: Calculating Superelevation for an Individual Curve | 265