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Creating Corridors

OpenRoads works within MX using the Civil Tools to perform all the roadway design steps. Note that references to "12345" in file names refer to the project's five digit Project Number.

Create the Corridor

Each Corridor should be in it's own DGN for larger projects. For smaller projects a single DGN can be used. If DGN files have not yet been created, see the Create Project DGN's.

  1. Open 12345 Cor-Roadname.dgn. Open the Default model and attach the 12345Combined.dgn's Default model with Live Nesting = 1.
  2. Using Level Display, expand the dgn's Default-3D entry. Expand the Combined DGN's Default-3D's attachments. Shut off the display of all referenced Default-3D models in any attached reference except the Terrain's.
  3. If the drawing you are in is a reference file to the Combined.dgn, expand the Combined.dgn's Default entry in the Level Display, right click on your drawing's Default entry and shut off its display. Your are now ready to create a corridor.
  4. Select the terrain element and use the context popup menu to set the terrain as active.
  5. Use Element Selector with the Individual and New toggles active. Select the Alignment that you want to create a corridor with. Hover on the alignment and the Context Menu popup will appear. Select Create Corridor or go to the Corridor Modeling task menu to select Create Corridor.
    context menu popup tool bar
  6. Reset to use the active profile of the alignment chosen or choose another as needed. Set the Design Stage in the box then type a Name for the corridor into the onscreen tooltip and left click to accept.
    create corridor dialog box
  7. After the corridor is created the Create Template Drop toolbox becomes active. The first prompt is for the template (name). Use the Alt down arrow to bring up the Pick Template box. Select the Template and hit OK. Left click on the screen to accept the template, then define the start and end points (Type in the Start and End stations of the Proposed profile). Set the template drop interval = 5, and set the transitions to 0.
  8. After the template is created you can create additional template drops by selecting another template and following the prompts again. Reset to finish placing templates. After each drop is defined the template is applied to the stations indicated and added to the corridor.
    pick template dialog box

Your corridor has now been created and can be refined using the other corridor creation tools. Many tools work by hitting on the 2D lines that were created. Shut off the display of all the 3D design strings by opening the level display, expand the tree under your Default-3D model, highlight your Default-3D model and then right click in the levels pane and select All Off.

Save Settings and Save. Review your Design by viewing Dynamic Sections.


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