Shrink/Swell Table

This command defines different shrink/swell factors by station range for cut/fill quantities and subgrade materials. These factors are stored in a .RSS file which can be used in the Process Road Design command as an optional input file. Without the shrink/swell table, Process Road Design uses a single factor for shrink and a single factor for swell for the whole road. These single factors are set in the second dialog of Process Road Design.

This command prompts for a Design Template file (.tpl) and reads the material names from the subgrades in the template.

The stations and shrink/swell factors are entered in the spreadsheet in the dialog shown here. In the dialog, first highlight the material in the list and then the table of stations and factors for that material are shown in the spreadsheet. The cut material uses a swell factor, and the fill and subgrade materials use a shrink factor. Use the Pick button to screen pick a station along the centerline in the drawing.

Pulldown Menu Location: Roads
Keyboard Command: shrinktable
Prerequisite: Road Template (.tpl)