Module 3 - Creating a Corridor Model

Description

This module will instruct users on how to create roadway Corridor, assign Template Drops to Corridor and Edit & manipulate Corridor in a design.

 

Objectives

• Create roadway Corridor

• Assign Template Drops to the roadway Corridor

• Modify Corridor in various ways

Steps:

Create Corridor (Roadway Model) File

Copy over project specific Templates using the Template Library Organizer

Create Corridor and Apply Template Drop

Display Dynamic Cross Sections

Modify Corridor

Copy and Replace Template Drop

Add Corridor Objects

Create Parametric Constraint

Create Point Control

 

Create Corridor (Roadway Model) File

Description

This module instructs users how to create a Corridor (Roadway Model) design file for a project and bring in the necessary references. The corridor base model file will reside within the project folder structure the .../Highways/Base_Models folder. Depending on the complexity of the project one or more corridor files can be created. References files such as survey, terrain, alignment files are attached without nesting.

1. Create New Roadway Model file, see Module 1 – Creating Base Models Files; file name (example): HW_CB_1234_1234_RoadwayModel.dgn. 

2. Reference in survey, terrain, alignment(s) using no nesting.  Turn off levels as needed.

3. Activate the terrain by clicking on the terrain boundary, hover over the boundary and from the pop-up menu select/click the Set Terrain Active tool.

4. Now the Default 3D view is available.  You can also open view(s) for the profile(s) of the horizontal alignment(s). Save settings when the displays are completed as needed. Review the file then Save the file.

 

 

 

Copy over project specific Templates using the Template Library Organizer

CTDOT provides a sample template library in the following folder:

...CT_Configuration\Organization-BIM\_CT_Civil Standards\Template Library\CV_ORDTypicals.itl

Required individual templates will be copied over from CV_ORDTypicals.itl to Project_Typicals.itlusing the Template Library Organizer.

Please note: Any other disciplines modeling a corridor can copy a blank ITL from …CT_Configuration\Organization-BIM\_CT_Civil Standards\Template Library\Project_Typicals.itl and paste the file into the discipline-specific folder for engineering data:

Discipline project location of ITL:

• Bridge/Eng_Data/
• Envir/Eng_Data/
• F_Civil/Eng_Data/
• Geotech/Eng_Data/
• Hwy_Man/Eng_Data/
• Hwy_Ops/Eng_Data/
• Hydro/Eng_Data/
• Illumination/Eng_Data/
• Landscape/Eng_Data/
• Public_Trans/Eng_Data/
• R_Catenary/Eng_Data/
• R_Signals/Eng_Data/
• R_Track/Eng_Data/
• Traffic/Eng_Data/
• SVY_District/_Eng_Data/
• Pavement/
• PMaps/
• SVY_Central/
• SVY_Consultant/

Warning: Do not change the name or path of the Project_Typical.itl file. If this file name gets modified after Templates are placed in a Corridor the Synchronize with Library tool will not be able to update itl edited templates.  This path is also set as a variable used across all projects so your file will always be read in.

 

 Create Corridor and Apply Template Drop

Corridors represents one or more Templates being dropped along 3D Baseline to create a 3D Model. This module will instruct to Creating Corridor and Applying Template Drops.

If not already open, Open the previously created project Corridor Model file, see Create Corridor (Roadway Model) File; file name (example): HW_CB_1234_1234_RoadwayModel.dgn and Load the Template Library for the project. See Section 3 - The Template Library for loading or creating Templates. See Section 4.1 - Corridor Creation for Corridor Parameters.

Activate the OpenRoads Modeling workflow from the pick list next to Quick access toolbar in the upper left corner if it is not already active. The ribbon menu will reflect the OpenRoads Modeling tools.

1. From the ribbon, select Corridors Tab.

2. From the Create Group Select New Corridor.

 

 

3. Create Corridor dialog will open.

a. Select Feature Definition > Final (user can choose desired featured definition from the list)

 

 

b. Follow the prompts:

c. Locate Corridor Baseline, select the Horizontal Alignment (The program will automatically generate or pick up the name of the selected alignment i.e. RTE1) 

 

 

d. Locate Profile-Reset For Active Profile, right-click to accept the Active profile associated with the Horizontal Alignment.

 

 

e. Corridor Name> Feature: Name, left-click to accept the Active name RTE1 or rename as desired then accept to create Corridor.

 

 

f. Closed shape called Corridor Object is drawn along the alignment in 2D view.

g. Create Template Drop dialog will appear (skip to next Step)

i. If the Create Template Drop do not appear, it denotes that user have exited from the command and the plan will be like below.

 

 

ii. Corridor is created but there is no template applied to it. In order to apply the template(s) to the newly created corridor at a defined interval along the alignment, From Corridors Tab Ribbon then From the Create Group Select New Template Drop.

 

 

iii. On Locate Corridor prompt, select the newly created corridor then follow the next steps below.

 

 

4. Follow prompts after Create Template Drop dialog opens. 

a.  Parameters: Template, click the browse button next to Template label to open Template library or click the Alt and Down to open Template library.

 

 

b. This opens the Pick Template dialog. Select the desired template prepared for the project and review. For this example, choose HWY Typical Sections > 2ln_HMA_BCPC and click OK. 

 

 

c. Parameters: Template = HWY Typical Sections > 2ln_HMA_BCPC, left-click to accept the 2ln_HMA_BCPC.

 

 

d. Parameters: Start = 10+00 (Click Alt to Lock to Start or type specific Station), left-click to accept .

e. Parameters: End = 27+36.69 (Click Alt to Lock to End or type specific Station), left-click to accept.

f. Parameters: Drop Interval = 10 (as desired), left-click to accept.

g. right-click to exit command. New corridor with template drops associated with it is created.

 

 

5. Additional corridors can be created for the side roads following the steps described above.

 

Display Dynamic Cross Sections

Once Corridor is created, the cross sections can be created directly from the 3D Model and can be viewed with Dynamic Cross Sections tool. The interval of cross sections is based on the template drop interval. Dynamic Cross Sections are always created perpendicular to the alignment of the Corridor used.

1. Activate the OpenRoads Modeling workflow from the pick list next to Quick access toolbar in the upper left corner if it is not already active. 

2. From the ribbon, select Corridors Tab.

3. From the Review Group Select Dynamic Sections > Open Cross Section View.

 

 

 

4. Follow the prompts.

a. Locate Corridor or Alignment: Select RTE1 Corridor.

b. Select or Open view: Open View 4 by selecting the view 4 button from the bottom of the screen.

c. Click inside View 4 window, a cross section will appear.

 

 

d. In the upper left portion of window, select the drop-down arrow next to View Properties. Here the view properties of the Cross Section view can be changed as needed.

e. User can press single left or right arrow to move to the previous or next cross section, respectively.

 

 

Modify Corridor

 

See Section 4.2 – Corridor Editing and Section 4.3 – Template Drops for modifying Corridor and template Parameters and additional information.

 

 

Copy and Replace Template Drop

This module instructs users how to copy and edit or replace existing Template in design file.

1. Load Corridor (Roadway Model) file and Load the Template Library for the project. See Section 3 - The Template Library for loading or creating Templates.

2. Activate the OpenRoads Modeling workflow from the pick list next to Quick access toolbar in the upper left corner if it is not already active. The ribbon menu will reflect the OpenRoads Modeling tools.

3. The Corridor file contains corridor RTE1 with template drop 2ln_HMA_BCPC from Sta. 10+00 to Sta. 16+00. When the Template Drop Range of Template Drop graphic is selected, range can be edited as needed. The range can also be edited form the properties window by changing Start and End Station.

4. Copy Template Drop.

a. Select 2ln_HMA_BCPC Template Drop and let the cursor rest on the element to access the context sensitive pop-up menu. Select Copy Template Drop.

 

 

b. Follow the prompts.

i. Locate Corridor: Select RTE1 Corridor.

ii. Start Station: 13+00, left-click to accept.

iii. End Station: 16+00 (Click Alt to Lock to End or type specific Station), left-click to accept.

c. Corridor processes with new Template Drop.

5. Change or swap newly copied Template Drop. Replace template 2ln_HMA_BCPC with template 2ln_PS5_Curb_SW_Both.

a. Select 2ln_HMA_BCPC Template Drop and let the cursor rest on the element to access the context sensitive pop-up menu. Select Properties.

 

 

b. Click the Browse button in the right side of the Template Name label. This opens the Pick Template dialog.

 

 

c. Select the desired template prepared for the project and review. For this example, choose 2ln_PS5_Curb_SW_Both (roadway with curb and sidewalk at both sides) and Click OK.

 

  

d. The Corridor processes with new Template Drop. Notice the change in 3D view.

 

 

Add Corridor Objects

Corridor Objects dialog is a summary of all corridor modeling objects and used to manage data. Clicking on the various categories located on the left side of the dialog displays the appropriate data in the center section. These data may be edited as needed, either from center section or from right side of the dialog.

1. Select Corridor Handles of RTE1 Corridor and let the cursor rest on the element to access the context sensitive pop-up menu. Select Corridor Creation Tools > Corridor Objects.

 

 

2. Corridor Objects Window opens. In this window user can define or edit various categories. Select Template Drop, notice two Template Drop is applied to the RTE1 Corridor. Here Template Drop can be replaced or the station can be edited easily.

 

 

Create Parametric Constraint

Create Parametric Constraints tool allow user to override template point constraint values. The Create Parametric Constraints tool gives users the ability to vary pavement thickness, curb height, ditch widths, slopes, etc between any station range along a corridor. This module will show to override the subgrade depth of roadway structure from 1 foot to 6 inches using Create Parametric Constraints tool

1. Modify subgrade depth in a Template Drop named 2ln_HMA_BCPC

a. The constraint labels are created and assigned to template point(s). Looking into 2ln_HMA_BCPC Template Drop, Bottom of the subgrade layer has Constraint Label named as Subgrade_Depth under Vertical Type Constraint. Here points BOC_sg, EOR_sg, SHDR_sg and CL_sg are all assigned Subgrade_Depth label.

 

 

b. Select Corridor Handles of RTE1 Corridor and let the cursor rest on the element to access the context sensitive pop-up menu. Select Corridor Creation Tools > Create Parametric Constraint.

 

 

 

c. Create Parametric Constraint window will appear. Follow the prompts.

 

 

 

i. Start Station: 10+00, (Click Alt to Lock to Start or type specific Station), left-click to accept.

ii. End Station: 13+00 (Click Alt to Lock to End or type specific Station), left-click to accept.

iii. Constraint Label: In the Create Parametric Constraints dialog, press the down arrow to display the list of available Constraint Labels that you can adjust and select Subgrade_Depth. Default value for Subgrade_Depth is currently set to -1.000, left-click to accept

iv. Start Value: -0.500, , left-click to accept.

v. End Value: -0.500, , left-click to accept.

vi. The Corridor processes with new value. Notice the change in 3D view.

 

 

    

d. Review the dynamic cross section there are green boxes that appear along the bottom of the section. The green boxes indicate the locations where the Subgrade_Depth was adjusted.

 

   

e. Review the Parametric Constraint with Corridor Objects tool.

 

 

If at any time user need to modify the values user can do it here.

  

Create Point Control

Create Point Control tool allow user to assign Point Control to Corridor which forces the cross-section template point to follow other information than what is set in the template. Point controls override the default location of template points. In this module user will create point controls for the right edge of road point: EOR_rt in 2ln_HMA_BCPC Template drop. Using Create Point Control tool shoulder will be tapered from 1 foot to 4 feet.

1. The Corridor file contains corridor RTE1 with template drop 2ln_HMA_BCPC from Sta 11+00 to Sta. 15+00.

2. New EOR_rt geometric element is drawn from Sta. 11+00 to Sta. 11+50 making shoulder width 1 foot and 4 feet, respectively.

 

 

 

 

3. Create point control for point EOR_rt to follow the New EOR_rt geometric element

a. Select Corridor Handles of RTE1 Corridor and let the cursor rest on the element to access the context sensitive pop-up menu. Select Corridor Creation Tools > Create Point Control.

 

 

b. Create Point Control window will appear. Follow the prompts (after each prompt, left-click to accept values and move to next prompt):

  

 

i. Start Station: 11+00

ii. End Station: 11+50

iii. Control Description: EOR_rt Control (name as needed)

iv. Locate Point: EOR_rt (Select EOR_rt element in View 1 or from cross section view)

v. Mode: Horizontal

vi. Control Type: Linear Geometry

vii. Locate Plan or Profile Element: Select New EOR_rt geometric element (dashed blue line)

viii. Use as Secondary Alignment: Yes

ix. Priority: 1

x. Start Offset: 0.000

xi. Stop Offset: 0.000

xii. The Corridor processes and updates as per the point control.

 

c. Review point control in plan view, cross section view and 3D view.

i. In plan view notice that EOR_rt linear feature now follows the New EOR_rt geometric element (blue cyan line).

 

 

ii. In cross section view notice there is magenta box at EOR_rt point. This indicates that there is a point control to this point.

 

 

iii. Review 3D view, Right Edge of Road is tapered.

 

 

d.  Review the Point Control with the Corridor Objects tool.