Supplemental Resources: Corridor Modeler

Corridor Modeler - Setting Project Preferences

The Corridor Modeling tool is a front end application that allows you to set up project specific preferences. Most of the Information that is selected to populate the Corridor Modeling dialog box is created using common GEOPAK tools and MicroStation. Typically, a .gpk file and a .tin file have been created prior to activating the Corridor Modeler dialog. Symbology features, geometry information, and the existing surface are imported using this tool. Roadway Designer utilizes these definitions when creating a roadway design model.

The preferences and imported information can then be saved as a Roadway Designer Preference (.rdp) File. During the process a subfolder named rddbs is created in the working directory which contains files that will be used by Roadway Designer. This subfolder and its files should not be deleted.

Corridor Modeling can be invoked by selecting Applications > GEOPAK > ROAD > Corridor Modeling or clicking the Corridor Modeling icon on the GEOPAK Road toolbar.

GEOPAK Road toolbar

An example of the Corridor Modeling dialog box is shown below.

Corridor Modeler dialog

Menu Items:

File

When all the necessary options have been defined, you can save them to a Roadway Designer preference file (.rdp) for future use.

Tools

Job

Specifies the GEOPAK Coordinate Geometry database (gpk file).

Preferences

Corridor Modeler dialog - Preferences

DDB

Corridor Modeler dialog - DDB

The DDB option is used to Import drafting standards from a DDB file into an .xin preference file used by the Roadway Designer. To identify a DDB file, you must set the GPK_ACBOOK_DDBFILE_STYLES configuration variable, or accept the default DDB file. When you click Import the software creates a rddbs sub-directory (if one does not already exist) and puts the .xin file in the rddbs directory. The GPK_ACBOOK_XINFILE_STYLES configuration variable is used when a single global .xin file will be used instead of a project specific .xin in the local rddbs folder.

NOTE:  When this variable is defined pointed to an existing .xin file, the Import DDB option is disabled.

DTM

Corridor Modeler dialog - DTM 

The DTM option is used to Import the selected DTM or TIN file(s). If a TIN file is selected, it is converted to a .dtm file and stored in the defined location. If a DTM file is selected, no conversion is performed. The selected DTM file is simply used by Roadway Designer.

Two action/edit icons are located on the right side of the dialog.

Geometry

Corridor Modeler dialog - Geometry

The Geometry option is used to Import various types of geometry data from the selected .gpk file and generates an .alg geometry file based on the information you provide. When you click Import, the geometry is updated in the .alg file with the Chain, Profile, and Drafting Standard information specified in the list. The .alg file is located in the rddbs folder. If a list box entry is RED, that indicates the entry has been deleted from the Coordinate Geometry file (.gpk) since the last update. If a list box entry is BLUE, that indicates the entry has been changed in the Coordinate Geometry file (.gpk) since the last update.

Plan Graphics

Corridor Modeler dialog - Plan Graphics

The Plan Graphics option is used to store plan view graphical elements in the Roadway Designer alignment file (.alg). Since Roadway Designer does not directly work with plan view graphics, these elements must be stored as alignments in the Roadway Designer alignment file (.alg). The alignments can then be used by Roadway Designer for pavement transitions, widening, etc.

ALG Viewer

Corridor Modeler dialog - ALG viewer

The ALG Viewer option is used to display, undisplay, and delete the selected chains directly from the ALG file.

Two action/edit icons are located on the right side of the dialog.

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