Objective

The implementation of Geopak Graphical Criteria has several purposes.

1. Minimize hand modifications to proposed templates with our current Criteria method.
2. Provide more flexibility and control for Criteria users by offering a more graphical base and Adhoc Attribute usage to process Criteria.
3. Transition and keeping up-to-date with the evolution of Geopak Criteria.
4. Minimize the need to define variables and substitution strings in a typical Criteria input text file. Rather, use Adhoc Attributes to define variables stored as a graphical element in DGN file. Thus, reduce the Criteria input text file tremendously.
5. Minimize typo errors for variable definitions from text entry into ASCII Criteria input file.
6. Provide a more intuitive and visually comprehensive method to process Criteria by introducing GGC to new and entry level Criteria users.

Summary

Geopak Graphical Criteria (GGC) is a relatively new concept from our traditional NCDOT Criteria practice. Our current Criteria input is heavily dependent on the definitions of variables in ASCII Criteria input text file. With GGC, most of the variable definitions can be stored as Geopak Adhoc Attributes as graphical Microstation elements in a DGN file. These elements with the attached Adhocs can be placed in a DGN file through the RD_GGC.DDB D&C Manager.

Once placed, Criteria will extract the Adhoc Attribute values attached to each plan view element. The Adhoc values are then used to process Criteria. Adhoc Attributes have default values. These default values can be changed or "user redefinable" before or after the plan view graphical element is placed through the GGC D&C Manager.

Defining Adhocs Before D&C Placement

and the are checked on, . Adhoc values can be changed before placing the item in a design file.

Step 1.
First, select the D&C Manager Design mode.

Step 2.
Double click on the D&C Manager item.

Step 3.
Check on Place Influence and Adhoc Attributes.

Step 4.
After the Adhoc Attribute dialog box displayed with the default values, change the values if desired.

Step 5.
Lastly, place the element with the attached Adhoc Attributes in the DGN file.

Changing Adhocs After D&C Placement

Adhoc values can be changed after the element has been placed in the design file with the following two methods.

1. D&C Manager Set Mode
2. 3PC Adhoc Attribute Manager

NOTE:
The difference between the two methods is when Place Influence is checked on and the D&C Manager Set Mode method is used, then the element level is also changed to what is set in D&C Manager for that item. Changing Adhoc values with 3PC Adhoc Attribute Manager will only change the Adhoc values and not the element level.

Procedure 1- D&C Manager Set Mode

Step 1.
First, while selecting the D&C item, change the D&C Manager mode to Set.

Step 2.
An Adhoc Attribute popup dialog box is automatically displayed with the last values stored. To load the default values, click on the Reload Adhoc Attributes icon.

Step 3.
Switch Attach Mode to Replace and click on the Set button.

Step 4.
Lastly, select the element to replace the Adhoc Attributes with.

Procedure 2- 3PC Adhoc Attribute Manager

Step 1.
First, click on the 3PC Adhoc Attribute Manager tool.

Step 2.
Under the Adhoc Attribute Manager dialog box, click on Identify Element and select the element with the Adhoc attributes.

Step 3.
Once the Adhoc Attributes are displayed, enter the new values.

Step 4.
Lastly, click on the Set Attributes button and select the element to change the Adhoc values.

Viewing Adhoc Attributes

Adhoc Attributes can be viewed with the Geopak Application Attribute Viewer. Note that this tool can also be used to view other Geopak element attributes such the horizontal and vertical alignment information and Geopak shapes.

Future support for Adhoc Attribute Display will also be provided with predetermine search criteria CSV.

D&C Adhoc Attribute On-the-Fly Help

On-the-Fly Adhoc Attribute Help will be developed and supported in the next version of Geopak.

Geopak Graphical Criteria

Below is a list of Criteria which uses the new Geopak Graphical Criteria feature. Click on the links for further details and to see how they are being incorporated with our current Criteria.

Shear Lines - At Intersections
Automatic Pavement Surface Extension

• Median Crossovers


• Bulb Type U-Turns


• Paved Driveways


• Proposed EOT

Shoulders (paved and total usable)

Median Ditch Tapers Approaching Structures and Underpasses
Guardrail R-R-R Projects
Concrete Walls
Gore Areas - Resolving Side Slopes
Drainage Ditches

Geopak Graphical Criteria Adhoc Attribute Library

Link to: GGC Roadway Design Adhoc Attribute Library

User Defined Variables

"GEOPAK GRAPHICAL CRITERIA FILE"New!
Define the DGN file which contains the graphical plan view element.

If GGC DGN file is located in a separate folder from the XSC file being processed, then define the full path with the name of the GGC DGN file, e.g. R:\Roadway\Proj\R2812_RDY_GGC.DGN.

EXAMPLE:

DEFINE "GEOPAK GRAPHICAL CRITERIA FILE" R2812_RDY_GGC.DGN