Roadway Designer Manual: 2 - Create Templates Workflow 2
Workflow 2: Create a Template with Guardrail
Access the Template Library
- Access Template Library using the icon on the Corridor Modeling dialog.
Use an End Condition to turn on a Guardrail
- Right-click the Project Templates folder and select New > Template.
- Rename the new Template to GuardrailSwitchEC.
- Select Tools > Dynamic Settings from the Create Template dialog.
- Type 0.1 in both X Step and Y Step fields.
- DO NOT USE the Apply Affixes check box.
Add a Shoulder Component
- Left-click the Library tab and browse to the Components > Shoulder > Shoulder Components subfolder.
- Left-click and hold the left button down on the name Shoulder Layer 1 - Slope.
You want to place only a single shoulder component at this time. DO NOT use mirror.
- As you drag the component named Shoulder Layer 1 - Slope into the template window, move the cursor to the origin of the Current Template window (marked by a magenta‐colored box) and release the left mouse button.
Watch the coordinates in the upper left portion of the Dynamic Settings dialog and drop the Pavement - Vertical component at the coordinates 0,0.
Add the Guardrail Component
- Browse to the Project Templates subfolder.
- Left-click and hold the left button down on the name Guardrail. As you drag the component named Guardrail into the template window, toggle on Reflect and move the cursor to the Shdr_ETW_LayerTop point (same location as the origin marked by a magenta‐colored box) and release the left mouse button.
- Right-click on the Gr_ point and select Delete Vertical Constraint.
- Right-click on the Gr_ point again and select Add Constraint > Vector Offset.
- Left-click once on Shdr_ETW_LayerTop (to be Parent 1) and then Left-click once on Shdr_EOP_LayerTop (to be Parent 2).
- Enter 0.00 for the Offset value and click OK.
- Save the .itl file.
Add the Fill Slope Table End Conditions
- Browse to the Slope Tables subfolder under the End Conditions folder.
- Left-click and hold the left button down on the name Fill Slope Table. As you drag the component named Fill Slope Table into the template window, move the cursor to the Shdr_Outside_Layer1 point (the right furthermost point on the shoulder component).
- Zoom in to the Guardrail component in the Current Template window.
- Double-click the GuardrailPost. The Component Properties dialog opens.
- From the Parent Component drop-down list select Fill 4:1.
The GuardrailPost and its child components are now children of the Fill 4:1 End Condition component. If the 4:1 End Condition is solved, or displayed, then the child Guardrail components will also be displayed.
- Click Apply and Close.
Test the template
- Left-click the Test button on the Create Template dialog.
- In the Use Surface Slope field enter 0.00% and click Draw.
- Notice when moving the ground line the Guardrail only appears when the Fill 4:1 end condition solves.
This is one technique to determine where guardrail is needed along a corridor. Remember, when a component’s Parent component does not display, the component does not display. Making the Guardrail component a child of the End Condition component simplifies managing these components when used in more complex templates.
- Save the .itl file.