The design criteria file contains the standards tables that specify design standards for alignments and profiles.
The design criteria file contains A.A.S.H.T.O. standards tables for minimum K values at specified design speeds. Minimum K tables for Stopping Sight Distance, Passing Sight Distance, and Headlight Sight Distance are provided. If your local agency standards differ from the standards in the supplied design criteria file, you can use the Design Criteria File Editor dialog box to customize the file to support your local standards.
By default, the profile uses the design criteria applied to the parent alignment. You can accept the default, or select a different design criteria file for the profile.
The design criteria file contains standards for both alignment and profile objects. The Design Criteria Editor dialog box is used to modify the standards for both objects.
Tutorial Exercise: Modifying a Design Criteria File