Understanding Grading Criteria

The design parameters that you apply to a grading object can require multiple pieces of information. For this reason, Civil 3D utilizes a system of grading criteria, which enables you to refer to a set of instructions by name rather than having to re-specify them for each grading design. For example, you might have criteria with the name Curb, which instruct Civil 3D to project upward at a very steep slope for a very short distance. Similar criteria with names like Pond Embankment, Ditch Slope, and so on might be created alongside your Curb criteria. You can organize your named grading criteria even further by grouping them into grading criteria sets. For example, you might have one criteria set for pond grading, another for parking lots, another for athletic fields, and so on. Figure 17.9 shows grading criteria that would be used to create the inside slope of a pond.
An example of grading criteria
Figure 17.9  An example of grading criteria typically used for the inside slope of a pond
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