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Create OpenRoads Base Drawings

OpenRoads works within MX using the Civil Tools to perform all the roadway design steps. A 12345-Combined.dgn is created to act as a common reference attach location. This Combined drawing will contain references to most of the project's OpenRoads base drawings. This drawing will be Reference Attached to the design drawings with Live Nesting so that all the base drawings will be seen from just one attachment.

Check your seed file before proceeding.

OpenRoads drawings are seeded with 3 DGN models:

  1. Default
  2. Default-3D
  3. MX

It is imperative that the proper DGN model be active. It is also suggested that all the
drawings be created and attached to the Combined.dgn prior to working in any individual dgn.
When attaching files always attach the Default model to the Default model, the Default-3D
model(s) will automatically be attached.

Create Drawings and Attach References to the Combined Drawing

  1. From the MX menu, select File > New Plan Display...  From the Plan Display File Name panel, supply the File Name of 12345-Geometry ("12345" should be the project's Project Number).
  2. Repeat step #1 to create a 12345-Terrain file. If one already exists, then skip this step. Otherwise, refer to Create Terrain from Triangles to create a Terrain Model.
  3. Repeat step #1 again to create a 12345-Cor-RoadName file. In this file name, the Cor indicates that this is for a Corridor. Create as many of these files as necessary for each corridor this project will have. Smaller projects might allow all corridors to be kept in a single corridor drawing file, which is a little simpler to manage. In addition to the above documented base drawings, consider that this project might also require a 12345-Drives file as well as possibly others.
  4. Repeat step #1 again to create a 12345-Terrain-SUE drawing file. Refer to Displaying MX Subsurface for SUE (Subsurface Utility Engineering) documentation.
  5. One more time, from the MX menu, select File > New Plan Display... From the Plan Display File Name panel, supply the File Name of 12345-Combined. Once in, open the Default model.
  6. Open the References panel. Attach the Terrain, Geometry, all of the Corridor drawings and any other base drawings for this project. Click Open to advance to the Reference Attachment Settings panel.
  7. In the Reference Attachment Settings panel, select the Default model.  Set the Nested Attachments to No Nesting. Click OK for each drawing.
  8. In the Reference Dialog box, toggle ON the Snaps for all of these attachments.
  9. It is possible that Level Display may be needed to turn ON levels.
  10. Select the MicroStation Save Settings and Save options.

Attach the Combined Drawing to Each Base Drawing

  1. Open the 12345Geometry drawing. Open it's Default model.
  2. Open the References panel. Attach the 12345Combined.dgn, then hit Open.
  3. In the Reference Attachment Settings panel, select the Default model and set the Nested Attachments to Live Nesting with a Nest Depth equal to 1 (one). Click OK.
  4. In the References panel, click the Show Hierarchy button to show all of the references and subreferences. Expand the hierarchy tree for all the subreferences to show all the nested attachments. Highlight each nested attachment and turn the Snaps ON for each one.
  5. Open View Groups and select the Multi-Model Views View Group. This will set View 1 to the Default model and make it the active working view. View 2 will be set to the Default-3D model and it's located toward the bottom right. View 3 is reserved for the display of Profiles or Dynamic Sections and it's located toward the top right. The F9 function key will bring up 2 views side by side.
    view groups dialog box
  6. It might be necessary to issue a Fit View to see the drawing's content (sometimes it needs to be done twice). If there is an Existing Terrain, then promote it with the Set Active Terrain Model command.
  7. Use Level Display and expand the drawing's Default-3D entry. Expand the Combined drawing's Default-3D attachments. Shut OFF the display of all referenced Default-3D models in any of the attached references except for that of the Terrain's display
  8. Next, expand the Combined drawing's Default entry. If there is a Default sub-entry of the current drawing, then shut OFF it's display too.
  9. When drawings are attached, the Default-3D models are set to non-snappable.  Right click on the terrain.dgn and turn on snaps, you may also need to turn on snaps for the combined.dgn's Default-3D model for it to presist down.
  10. Save Settings and Save.
  11. Repeat Steps 1 thru 10 for each corridor drawing.

When other project dgn's are created, Attach them to the 12345Combined drawings so they will be displayed in all of the other dgn's thanks to Live Nesting.

File Naming Convention

File Type Name Format Description
Combined  12345-Combined An empty drawing containing reference attachments to all other Project OpenRoads drawings. Used to reference all drawing with a single attachment using Live Nesting
Terrain 12345-Terrain* MX Imported Triangles and Existing Linear Detail Features *

Terrain Points

12345-Terrain-PTS* MX Imported Point Detail Features. This drawing is scanned to create cross-section Detail *
Existing Subsurface Drainage & Utilities 12345-Terrain-Sue*

Existing Drainage and Subsurface Utility information from MX\Survey *

Proposed Subsurface Drainage & Utilities 12345-Suda Proposed Drainage and Subsurface Utility information
Cross-Section Detail 12345-XS-Detail Cross-section Detail Ticks in plan view used for annotating cross-section drawings. Use a separate drawing for each Alignment.
Geometry 12345-Geometry Civil Geometry Alignments. Existing cross-section elevations are extracted from this drawing.
Corridor 12345-Corridor Corridors, Civil Cells, and possibly Drives. It may be necessary to develop corridors in separate drawings.
Sections 12345-Sections Construction Surface Creation & Cross Section creation for model export to MicroStation and XML output
Drives 12345-Drives Driveways
Miscellaneous 12345-Misc Copied ENV, ERL, and PRW MicroStation lines converted to linear features for Cross Section labels
3D Cells 12345-topo-3D-Cells MX point strings displayed as 3D cells for Visualization

* Default-3D models of these drawings replace the EXD.dgn and should be referenced to all MicroStation drawings as the existing detail.

project file referencing chart

New Hampshire Department of Transportation
PO Box 483  |  7 Hazen Drive  |  
Concord, NH  |  03302-0483
Tel: 603.271.3734  |  Fax: 603.271.3914