Quickstart for Roadway Modeling Using Openroads-practice Workbook

Practice Workbook This workbook is designed for use in Live instructor-led training and for OnDemand selfstudy. The explanations and demonstrations are provided by the instructor in the classroom, or in the OnDemand eLectures of this course available on the Bentley LEARN Server ( learn.bentley.com ). This practice workbook is formatted for on-screen viewing using a PDF reader. It is also available as a PDF document in the dataset for this course.

QuickStart for Roadway Modeling Using QuickStart U sing OpenRoads This workbook contains 4 sets of exercises. It is intended to be a continuation of the course OpenRoads QuickStart - Terrain & Geometry. Set 1: Model the roadway corridor  Set 2: Review the 3D Model Set 3: Model an Intersection Using a Civil Cell Set 4: Review and Enhance the 3D model

TRNC01609-1/0003

Exercise 1: Getting Star Started ted

Course Description This workbook contains exercises to select a proper Workspace and create a blank file within the Bentley civil software including PowerCivil, Power GEOPAK, GEOPAK, MX, and Power InRoads. Students will also learn how to navigate the user interface and where to find fi nd the civil tools. This course is appropriate for any of the Bentley ci vil software applications powered by OpenRoads Technology including... 

Power GEOPAK or GEOPAK



Power InRoads or InRoads



Bentley MX ROAD



PowerCivil for {country}

Dataset Units Both Imperial and Metric versions of the dataset are available. Throughout this practice workbook Imperial values are specified first and the metric values second. The metric values are enclosed in square brackets. For example: 12’ [3.4m]

Exercise 1: Getting Star Started ted

Course Description This workbook contains exercises to select a proper Workspace and create a blank file within the Bentley civil software including PowerCivil, Power GEOPAK, GEOPAK, MX, and Power InRoads. Students will also learn how to navigate the user interface and where to find fi nd the civil tools. This course is appropriate for any of the Bentley ci vil software applications powered by OpenRoads Technology including... 

Power GEOPAK or GEOPAK



Power InRoads or InRoads



Bentley MX ROAD



PowerCivil for {country}

Dataset Units Both Imperial and Metric versions of the dataset are available. Throughout this practice workbook Imperial values are specified first and the metric values second. The metric values are enclosed in square brackets. For example: 12’ [3.4m]

Startt the Software with the Tr Star Training aining Workspace (MXROAD users skip to the next section) In this section, you will start the software, create a new user to utilize the training workspace and create a blank file. Selecting the proper workspace is very important within OpenRoads. The workspace configuration has been extended to incorporate civil-specific variables and acts as the foundation for accessing and utilizing the proper standards for the civil design products.

1.

Start Start the GEOPAK, GEOPAK, InRoads, Power GEOPAK, GEOPAK, Power InRoads, or PowerCivil software.

2.

Create a new User Configuration File

a. On the MicroStation Manager, click the drop-down menu for the User. b. Select New

c. Key in “Civil_Training “Civil_Training”” within the Name field and click OK.

d.  Another dialog box opens.

e. Define the Project Project location  location by clicking on the Select button. f. Browse to C:\Bentley Training\Civil Training Workspace\ or to the location where you s aved the training workspace and select the appropriate Project Configuration File - Bentley-Civil-Imperial-Training.pcf [Bentley-Civil-Metric-Training.pcf]

g. Click Open to select the .pcf file h. Click OK to create the new user configuration file. 9.

On the File Open window, define the MicroStation MicroStation Settings as shown. 

User: Civil_Training



Project: Bentley-Civil-Imperial-Training or [Bentley-Civil-Metric-Training]



User: Bentley-Civil

Start the MXROAD Software with a Workspace (For MXROAD users ONLY, others skip to the next section) In this section, you will start the software using a proper workspace.

1.

Unzip from the Training data set the Civil Training Workspace to C:\Bentley Training\...

2.

Place the User Configuration file ( Civil_Training_Metric.ucf) to the default installation location depending upon the computer operating system…

3.



Windows XP is \Documents and Settings\All Users\Application Data\Bentley\MX V8i (SELECT Series 3)\Workspace\Users...



On Windows Vista, the location is \ProgramData\Bentley\ MX V8i (SELECT Series 3)\Workspace\Users...



On Windows 7, the location is \ProgramData\Bentley\ MX V8i (SELECT Series 3)\Workspace\Users....

Open the User Configuration file and ensure that the ’ _USTN_PROJECT ‘ variable is set to the correct location for the Civil_Training_Workspace.

4.

Start the Bentley MXROAD software.

5.

If the ‘Tip of the Day’ window appears, click OK to close the window.

6.

On the MX Project Start Up dialog...

a. Click New Project. b. In the MX Project Start Up window define the MicroStation Settings as shown.



User: Civil_Training_Metric



Project: Bentley-Civil-Metric-Training [Bentley-Civil-Imperial-Training]



Interface: Bentley-Civil

c. Click Browse and select the folder where the training dataset is located. d. Type Training in the Project Name field. e. Click Make New Folder and name the new folder MX Project. f. Click OK to accept the ...\MX Project\ folder. g. Set the Default MX Project Settings to UK_imperial [UK_metric]. h. Click OK. The MX project files are created and the software opens into a blank file named draw.dgn.

9.

Open the North St.-Corridor-Imperial.dgn [North St.-Corridor-Metric.dgn] file

 j.   File > Open then browse to the .dgn file.

Exercise 2: Model the Roadway Corridor 

Course Description This set contains exercises to model the roadway corridor using an existing 2 lane urban typical section with curb and cutter and sidewalk. The pavement width will be controlled by the edge of pavement geometry created in a previous exercise.

Skills Taught 

Create Corridor 



Understand and use Design Stages



Display and review cross sections



Define a Point Control for the intersection

Model Corridor Using an Existing Template In this exercise, we will select a template from the template library and apply it to the North Street horizontal and vertical alignments to create the roadway corridor.

1.

If you haven’t done so already, open the North St.-Corridor-Imperial.dgn [North St.-Corridor-Metric.dgn] file

2.

Select the Element Selection tool.

3.

In View 1, select the North St. centerline geometry and hover until the context sensitive menu appears.

4.

Select the Create Corridor tool. Following the heads up prompting:

a. Locate Profile - Reset For Active Profile: Click Reset mouse button b. Corridor Name: Type North St.and click Data mouse button to accept. c. Template: Hold down the ALT key and press the down arrow key to open the Pick Template window. 

Browse to and select the Urban > 2 Lane Urban Curb and Gutter with Sidewalk template.



Click OK.



Click Data mouse button to accept template

d. Start Station: Type 11+50 [1+045] and press the Enter key, then click Data mouse button to accept Note: Starting at this station to leave room for intersection civil cell.

e. End Station: Press ALT key to lock to the end of the alignment, then click Data mouse button to accept. f. Interval: Type 10 [3] and click Data mouse button to accept. g. Minimum Transition Before Drop: Type 0 and click Data mouse button to accept. h. Minimum Transition After Drop: Type 0 and click Data mouse button to accept. The corridor model is displayed.

The corridor model is built in a 3D model in the active DGN file. The 3D model is automatically referenced into the 2d model you are currently using. For now, we will turn off the display of the 3D model reference.

9.

Turn off display of 3D model reference.

a. Select the References  tool. b. Select the North St. file. Notice the Default-3D name in the Model column. c. Clear the Display setting by either clearing the check mark in the display column or selecting the icon at the bottom of the window. d. Close the References window.

Notice that the corridor model is chorded around the curve. Corridor Models have a Design Stage property that affects how the corridor is modeled. The interval specified when the corridor is created defines the distance between drop points where the corridor is modeled. The Design Stage property applies a multiplier to the interval. For example, a Preliminary design stage has a multiplier of 10. So instead of our model being processed every 10’ [3m] as we specified, it is modeled every 100’ [30m].This is what causes the chording.Early in a project using the Preliminary design stage causes the corridor to process faster and typically provides sufficient detail. As the project progresses changing to the design or final design stage results in a more accurate model.

5.

Change the corridor to use the 2-Design design stage.

a. Select the Element Selection tool. b. Select the corridor boundary element. The corridor boundary is the graphical shape that represents the extents of the roadway model. Sometimes it is easiest to select the corridor boundary by one of the lines that extends perpendicular to the border.

c. Hover over the selected corridor boundary and click the Properties  button on the context menu. d. Change the Design Stage to 2‐Design. The corridor model updates. Notice that the chording is no longer present because the interval is now closer together. The 2-Design design state has an interval multiplier of 2 so the corridor is being modeled every 20’ [6m].

View Corridor Cross Sections

1.

Select the Element Selection tool.

2.

Select the corridor border. Sometimes it is easiest to select the corridor border by one of the lines that extends perpendicular to the border.

3.

Select the Open Cross Section Model tool.

4.

Open View 5 by selecting the 5 button at the bottom of the screen. There is nothing special about view 5, you can use any of the eight views.

5.

Click inside view 5.

6.

Select the down arrow next to View Properties at the top of the window.

7.

Set the Vertical Exaggeration to 5.

8.

Click the left and right arrow icons at the top of the window to scroll through the cross sections. A light blue line in the plan view indicates the location of the cross section currently being displayed.

9.

Close the cross section view.

Adjust the Corridor Model to Meet and Match the Existing Turn Lane Insert an additional template drop through the intersection, edit the components and add a point control for the matching edge of pavement The current template is a fixed width and cross slope. In this exercise, we will need to adjust the cross slope to meet and match the existing pavement through the turn lane section of the corridor. We will add an additional template drop and remove the curb, sidewalk, and end conditions through the intersection as well as control the elevation of the edge of pavement to match the existing pavement. By using a point control, the edge of pavement template point can be aligned with the geometry element horizontally and vertically. In the following image, the blue edge of pavement, yellow curb, and purple sidewalk graphics generated from the corridor can be seen cutting through the turnout section.

1.

Expand the Corridor Modeling task menu and select the Copy Template Drop tool.

2.

In View 1, follow the heads-up prompts and select the template drop graphic along the corridor.

3.

Continuing to follow the heads up prompting...

d. Start Station: Type 13+50 [1+107] and press the Enter key, then click Data mouse button to accept e. End Station: Type 17+50 [1+229] and press the Enter key, then click Data mouse button to accept

Now, we will edit the additional template drop through the intersection area. We have the ability to edit the actual template used in the corridor with out impacting the original template in the template library. This is an important technique to use when modeling real-world scenarios where roadway conditions may vary along the corridor. In our scenario, we will remove the curb\gutter, sidewalk and end conditions from the template through the intersection.

6.

Select the new template drop graphic that we created in the previous step. On the context menu, select the Edit Template Drop tool.

7.

The Editing Roadway Template Drop window opens. This allows us to edit the template directly in the corridor for project-specific adjustments.

8.

Right click anywhere in the open space within the template window.

9.

From the menu, select Delete Components .

10. Data point (Left Click) in the screen and draw a line through the components you wish to delete.

11. The components are removed from the template. TIP: If a component is mistakenly deleted, you can UNDO the command by keying in CTRL + Z on the keyboard.

12. Click OK in the upper right corner.

13. The corridor is updated.

We’ve removed the curb and gutter, sidewalk, and end conditions from the corridor through the intersection. Now, we have to consider the vertical aspect of matching the new pavement to the existing pavement through the intersection and turn lane. Using OpenRoads, we can cut a profile along any element within the model, project 3D elements onto the profile, and create or adjust the vertical properties of the profiled element. We need to profile the EOP feature and create a vertical alignment to control the Edge of Pavement feature to match the existing pavement through the intersection.

1.

Click the Element Selection tool in the Tasks menu. The Element Selection tool is used to pick elements so they can be edited or manipulated with other commands.

2.

Set the Element Selection tool to the individual mode by selecting the Individual and New icons in the Tool Settings window.

3.

Hover the cursor over the Edge of Pavement feature to profile. As you hover over the feature, you’ll notice that an informational box is displayed. The correct feature is named RdEOP.

TIP: Since we ran the Corridor Modeler first, we actually have 2 features in the model along the turn lane area. Therefore, you may have to right click to cycle to the proper feature. While hovering over the element, right click (reset) to cycle the selection to the next feature under the cursor, then left click (data point) to select the correct element.

4.

Open the profile model

a. On the context menu that opens, select the Open Profile Model tool. b. Open an additional view or click into an existing open view to place the profile model. 3.

Project the profile of the modeled roadway EOP(LT_EOP) onto the profile model for the control feature ( RdEOP).

a. Expand the Vertical Geometry toolbox in the Tasks menu b. Select the Project Profile to Element tool 

On the Place Projected Profile menu, name the profile as “Typical EOP” and set the element template to 3D Linear > Road_EdgeOfPavement.

Follow the heads-up prompts 

Select the Element to Project: select the edge of pavement feature from the corridor model named LT_EOP.



Select Plan Element to Project On To: select the control feature we created named RdEOP.

The profile of the modeled feature LT_EOP is displayed in the open profile window.

Now we will create a vertical alignment to control how the edge of pavement within the corridor transitions to match the pavement along the turnout area.

3.

Create the vertical elements that will control the edge of pavement

d. The Vertical Geometry tools are available directly within the profile window. Click on the Profile Line Between Points tool.



On the Profile Line Between Points menu, name the profile as “Match EOP” and set the element template to 3D Linear > Profile_EdgeOfPavement_L.

NOTE: Civil Accudraw is a tool bar useful in the precise definition of elements in civil and transportation workflows. The tool bar can be turned on by expanding the General Geometry  task menu and clicking the Activate Civil Accudraw button. 



  Toggle Civil Accudraw on the Civil Accudraw tool bar  Follow the heads-up prompts to enter the station and elevation information below:

VPOB

VPI #1

VPI #2

Slope:

n/a

1.50%

0.21% [0.39%]

Station:

0+00 [0]

0+60 [25]

3+95 [122]

200.61 [61.15]

201.3 [61.53]

Z: 199.71 [60.78]

HINT: Place the 2 segments independently and join them together using the Profile Complex By Elements tool. Name the profile “Match EOP” and set the element template to 3D Linear > Profile_EdgeOfPavement_L. Set the profile as the active profile.

e. Select the Element Selection tool. f. Select the newly created geometry element and hover until the context menu appears. g. Select the Set Active Profile tool.

Create a Corridor Point Control  After creating the vertical control alignment, we will update the corridor model so that the LT_EOP template point follows the matching control profile through the intersection.

1.

Select the Element Selection tool.

2.

In View 1, select the corridor border. Sometimes it is easiest to select the corridor border by one of the lines that extends perpendicular to the border.

3.

Select the Corridor Objects tool.

4.

Select Point Control from the Corridor Objects window.

5.

Select the Add New tool. Following the heads up prompting...

a. Start Station: Lock to start using ALT key b. End Station: Lock to start using ALT key c. Control Description: L_EOP d. Point: LT_EOP This is the name of the point in the template that will be tied to the geometry element. It might be easiest to select this point name from the tool settings dialog instead of the heads up interface.

e. Mode: Vertical f. Control Type: Linear Geometry g. Locate Plan or Profile Element: select the cyan vertical control alignment in the profile view. h. Use Secondary Alignment: No

i. Priority: 1  j. Start Horizontal Offset: 0 k. Stop Horizontal Offset: 0 The Point Control is listed in the Corridor Object window and the model is reprocessed.

Notice the Corridor EOP feature now follows the vertical control we created previously.

12. Close the Corridor Objects window. 13. Use the Open Cross Section Model tool to review the cross sections again and observe the cross slope changes through the intersection. 14. To review a specific cross section along the corridor, Right Click in the cross section model window. Then select Locate Station Via Datapoint and follow the heads up prompts.

Exercise 3: Review the 3D Model This set contains exercises to review the 3D corridor model.

Skills Taught 

Open View



Define which model is displayed in a view using the View Attributes



Define how the graphics in a view are displayed or rendered using the View Attributes



Rotate in a 3D view

Review the 3D Model The corridor modeling process builds a 3D model by default. Generally you will be working in a 2D drawing and just look at the 3D model when you want to view the model. The 3D model can be viewed in any of the 8 views.

1.

Open view 6.

2.

Select the View Attributes  icon.

3.

Change the Models to Default‐3D.

4.

Change the Display Style to Smooth.

5.

Close the View Attributes window.

6.

If the model is not visible, select the Fit View tool at the top of the window.

7.

Zoom in near the left edge of the North St. corridor model.

8.

Select the View Rotation tool at the top of the window.

9.

Position the cursor over the centerline at the left edge of the corridor model.

10. Snap to the centerline by pressing the left and right mouse buttons at the same time. Hint: Some computers are setup to use the mouse wheel or center button to snap instead of the left and right button combination.

11. Press the data (left) mouse button to begin view rotation.

12. If the view cannot rotate as far as you want before the cursor exits the view window: a. Press the data (left) mouse button to stop view rotation. b. Move the cursor near the center of the view. c. Press the data (left) mouse button to begin view rotation again.

If you zoom in close enough you can see that this is a true 3D model of the corridor complete with subsurfaces, pavement layers, curb and sidewalk.

4.

Close View 6.

Exercise 4: Modeling an Intersection with a Civil Cell

Course Description This workbook contains exercises for modeling a T intersection complete with curb returns and side slopes using a civil cell.

Skills Taught 

Create a T intersection ply placing a Civil Cell



Change the curb return radii by editing the Civil Cell



Tie the Civil Cell and secondary corridor together by moving the template drop location



Cleanup intersection of Civil Cell and mainline corridor by copying and editing template drops.



View 3D Model

Place Civil Cell In the following exercises you will use a civil intersection cell to tie between the South Blvd. edge of pavement and the North St. template. Before placing the intersection cell we will delete the North St. superelevation so it matches a more real world configuration.

1.

Continue

in the North St.-Corridor-*****.dgn file used in the previous exercises.

If you did not complete the previous exercise...

GEOPAK, InRoads, Power GEOPAK, Power InRoads, or PowerCivil Users: 

Review the first exercise of this course and create a new user configuration, named “Civil_Training.”



On the File Open window, define the MicroStation Settings as shown.





User: Civil_Training



Project: Bentley-Civil-Imperial-Training or [Bentley-Civil-Metric-Training]



User: Bentley-Civil

Open the North St.-Intersection-Imperial.dgn [North St.-Intersection-Metric.dgn] file.

MXROAD Users: 

Copy the files and folders in the MX_Backup folder to the folder that contains the MeadowPark.tif file.



Start the software



In the MX Project Start Up window, set the Last Used MX Project to ...\Training.mmd





In the MX Project Start Up window, set the Current Drawing Name to North St.-Intersection-Imperial.dgn [North St.-IntersectionMetric.dgn] file. Click OK.

2.

We will place the civil cell in View 1. View 1 is a 2D view that includes the North St. geometry and corridor model. We can work in the 2D view while simultaneously working in the 3D model.

3.

Expand the Civil Cells Toolbox in the Tasks menu.

4.

Select the Place Civil Cell tool. The tool settings window shows the name of the active civil cell. The Place Civil Cell tool automatically defaults to the last civil cell used and thus the dialog is locked (grayed out).

5.

Press the Reset mouse button to unlock the active civil cell.

6.

Select the

7.

Browse to and select the T-Intersections > Basic T civil cell.

8.

Click OK.

9.

Following the heads up prompting:

button to open the Pick Civil Cell window.

a. Locate Reference Element: Secondary Road CL: select the red centerline for North St. b. Locate Reference Element: Through Road EP: select the blue edge of pavement for South Blvd. c. Select Elements to View Alternatives: press the Reset mouse button to skip The civil cell can be oriented differently to meet your geometric configuration. In this exercise the cell is automatically oriented correctly so all you need to do is reset to accept the orientation.

d. Select Corridors to be Clipped: press the Reset mouse button to complete If the South Blvd. corridor model was located in the active file, the Civil Cell can automatically clip the South Blvd. corridor where it overlaps the civil cell. In this exercise dataset the South Blvd. is located in a different file and is referenced into the active file. This is a common workflow for larger projects. In this configuration we will manually clip the South Blvd. corridor later in the exercise.

e. Press Data mouse button to accept civil cell placement.

 A gap exists between the end of the intersection cell and the North St. corridor model that must be closed.

6.

Select the Element Selection tool.

7.

Select the Template Drop Handle for the North St. corridor. The Template Drop Handle is on the left (looking up station) at the beginning of the corridor.

8.

Select the Start Template Drop manipulator arrow.

9.

Position the cursor over the centerline at the end of the intersection cell and pause until the thick yellow snap graphic appears indicating that you are snapped to the end of the intersection cell centerline.

10. Click the Data mouse button to accept. The gap between the intersection cell and the corridor is healed.

Review Intersection 3D Model

1.

If not opened already, open View 2 and set up as defined below.

2.

Change view attributes to show 3D model.

a. Select the View Attributes  icon. b. Change the Models to Default‐3D. c. Change the Display Style to Illustration: Ignore Lighting. d. Close the View Attributes window. 5.  Adjust levels displayed a. Open the Level Display tool. b. Turn off the display of the Default level. Hint: The Default level may be the active level. The display of the default level cannot be turned off so you might need to double click on another level to set it as active first.

c. You may want to turn off the levels that contain linear graphics so only the 3D model is visible. The following levels should be displayed. Grade_Cut Grade_Daylight Grade_Fill Grade_Veg_Grass Road_Curb Road_Pave_Aggregate Road_Pave_Concrete Road_Pave_Subbase Road_Sidewalk

4.

If the model is not visible, select the Fit View tool at the top of the window.

5.

Rotate the drawing to view the model.

Hint: If you get lost while rotating the view, select the Top View or one of the other preset view rotations.

Adjust Curb Return Radius and Profile The T intersection civil cell places a 35’ [12m] radius curb return by default. However, this radius can be easily adjusted as needed.

1.

Set the plan and 3D model views so you can see the south curb return in both similar to the following image. This view configuration will allow you to see the 3D model update as you update the 2D geometry. Levels can be used to turn off the South Blvd. roadway model in the 3D model view. To do this, activate the 3D model view, open the Level Display menu, select the South Blvd - Imperial.dgn and turn off all of the levels.

2.

Select the Element Selection tool.

3.

In View 1, Select the blue edge of pavement line in the curb return. The geometry manipulator text appears.

4.

Click on the Radius manipulator text.

5.

Change the radius value to 50 [15] and click the Enter key.

The horizontal geometry and 3D model update.

6.

The profile of the Edge of pavement feature can be revised as well.

g. In View 1, Select the blue edge of pavement line in the curb return. h. Hover over the element till the context menu appears. i. Select Open Profile Model from the context menu. If not open already, open View 3 and click into the view to place the profile.  j. You will see the existing terrain line, as well as the profile for the edge of pavement feature. Using the vertical geometry tools, select Profile Line Between Points and create a new linear profile that runs the length of the profile.

k. Select the new profile element and hover until the context menu is displayed. Click the Set as Active Profile button. The 3D model in View 2 is updated based on the new active profile.

12. Select File > Save Settings. Save Settings stores how the views are currently setup so that when you return to this file the 3D view will still be setup and visible.

Cleanup South Blvd. - North St. Intersection Overlap Currently the South Blvd. corridor overlaps the North St. Intersection. For a cleaner design model the South Blvd. corridor needs to be cleaned up through the area of the intersection.

1.

Change to the South Blvd.file.

a. Select File > Open. b. Select the South Blvd. - Imperial.dgn [South Blvd. - Metric.dgn] file. 3.

Turn on all levels

a. Select the Level Display tool. b. Enable all levels EXCEPT Draft_Corr_Superelevation. 3.  Attach as a Reference the North St. file (with the intersection and corridor you created). Be sure Snap and Locate locks are enabled and the Nested Attachments is set to No Nesting.

Hint: If you are not sure of the North St. file name, select the File menu. At the bottom of the menu is listed recently used files. The file in position 2is the North St. file you were most recently using.

4.

Zoom in on the upper left portion of the alignment where North St. intersects South Blvd.

5.

Create new Template Drops on South Blvd. where the curb returns intersect the edge of pavement. These two new template drops will use the same template as currently defined through this segment of South Blvd. so they overall design of the roadway will not change. The template through the intersection can then be edited to remove the curb, sidewalk, and side slopes through the intersection

a. Select the Element Selection tool.

b. Select the Template Drop boundary around South Blvd. and hover until the context menu to appear.

c. Select the Copy Template Drop tool. d. Following the heads up prompting; select the Start Station by snapping the end of an element in the northern curb return.

e. Select the Stop Station by snapping to the end of an element in the opposite curb return. The South Blvd. corridor now has to new template drops located at the exact ends of the intersection cell.

6.

Edit Template Drop to remove curb, sidewalk, and side slopes through the intersection.

a. Select the new Template Drop boundary in the intersection and hover until the context menu appears.

b. Select the Edit Template Drop tool. The template editor window appears showing the template being used at this template drop location (through the intersection). We need to delete the curb, sidewalk, and side slope components on the left side of the template.

c. Right click in the template editor window and select Delete Components . d. Position the cursor near the left edge of the editing window and press and hold the data (left) mouse button. e. Move the cursor around drawing a white line. Any element that the white line touches is deleted when you release the data button.

f. Repeat as necessary to delete all of the components left of the edge of pavement. When complete, the template should look like the following image.

g. Click OK. The South Blvd. corridor model is recalculated with the new template through the intersection area.

Exercise 5: Review and Enhance the Complete Model The final model produced by OpenRoads can serve many purposes. These include design review, constructibility assessments, machine control, and visualization. In the following exercises we will look at utilizing the model for practical applications beyond the typical plan production work flows.

1.

Open the North St file where you created the intersection and corridor.

2.

Review the finished model in View 2. The view should still be open because you used the Save Settings command before exiting the file.

3.

Change the Display Style to Smooth to see the rendering without the triangles.

4.  Also, levels can be turned off to remove the linear elements from the model view.

Enhancing the Model with Pavement Markings

1.

Continuing in the file, set View 2 active. We’re shifting into performing our work in the 3D model, so be sure the view that contains the 3D model is active with your dgn file for the following exercises.

2.

Reference a 2D pavement marking file into the 3D model.

a. Open the References dialog box. b. Browse to the training directory and select the file Pavement Marking-Imperial.dgn [Pavement Marking- Metric.dgn] c. Set the Attachment Method to Coincident-World and click OPEN.

4.

Verify that the 3D model view is active.

5.

Use the Stencil tool to stamp the 2D striping onto the 3D model.

a. Expand the Visualization task menu and click on the Stencil 2D Elements on 3D Geometry b. The Stencil Reference Elements dialog box opens. c. Click the icon to “Stencil 2D reference elements on 3D Geometry.” d. Key in the surface offset to 0.03 e. Key in 5 for the tolerance f. Set the Direction to “Z”

g. Data point (Left Click) in the 3D model view. The 3D model is in View 2 for the training course.