Use this tab to view or change the conditions set for an interference check.
This option is available for checking a single pipe network, or for comparing two pipe networks to determine if any parts from one network are too close to parts from another network.
When this option is selected, the interference check looks for and detects the proximity check conditions specified on this dialog box. When this option is not selected, the interference check does not check for the proximity conditions specified on this dialog box, and the proximity checking options are not available (grayed out).
When this option is selected, you can enter a distance. When the interference check is run, any pipe network part that is less than the specified distance away from any other part in the specified network(s), in any direction, is marked as an interference.
When this option is selected, you can enter a value that is used as a scale factor. When you enter a scale factor value, AutoCAD Civil 3D calculates the limits of the part (the pipe or the structure) multiplied by the scale factor value that is specified. For example, if the pipe diameter is 600mm, and you specify a scale factor value of 2, AutoCAD Civil 3D identifies any interferences within a distance of 1200mm (or the pipe diameter, which is 600, multiplied by the scale factor value, which is two). When the interference check is run, any pipe network parts within that distance away from each other (on any side) are marked as an interference.