Lesson 3: Carlson RoadNET: Road Profile Editor
The Input-Edit Road Profile Editor is accessible from the Edit Road Dialog box.
In Carlson’s Road Network feature, the initial design Profile is automatically generated and has only a starting and ending PVI – with the elevation at both ends tying into existing ground. The crosshairs are locked to the design Profile.
The initial PVIs can be seen in the profile-grid-view where the existing ground Profile is shown in red and the design Profile in white. The initial PVIs are shown in the table-view with the “PVI Description” indicating the PVI elevation is tied to the “TARGET-SURFACE” (existing ground).
The buttons and settings directly below the profile-grid-view allow the user to edit the Profile and adjust the Zoom and Scale factors of the profile-grid-view. The Insert PVI, Remove PVI and Screen Pick PVI buttons at the bottom of the dialog box allow the user to make changes to the Profile using the table-view.
The profile-grid-view provides the user with a dynamic viewer and editor. As the crosshairs move along the design Profile, a “station” symbol on the drawing screen indicates the corresponding position/station along the Centerline. Also, as the crosshairs move along the Profile, the current Station, Elevation, Slope and Depth (between design and existing ground Profiles) are displayed and dynamically updated at the top of the window. The starting and ending stations for the Centerline are displayed above the buttons at the bottom of the window.
Add PVI: Use this button to “screen pick” the location for a new PVI in the profile-grid-view. After screen picking the new PVI location, the New PVI box prompts the user to provide additional design criteria to set the new PVI.
Edit PVI and PVI Edit Mode: Use the Edit PVI button to change the elevation and station of a PVI in the profile-grid-view by dragging-and-dropping it to a new location. The default PVI Edit Mode is “Free” which allows 360-degree motion when dragging-and-dropping the PVI. Other PVI Edit Mode options are: Hold Slope In, Hold Slope Out, Hold Station and Hold Elevation. The user also can choose to Hold Vertical Curve Length, Hold K-Value or Hold Sight Distance when editing the PVI using drag-and-drop. This setting is controlled in the Road Profile Settings dialog box.
Vertical Exag: Use this setting to “Fit” the Profile into the profile-grid-view area of the window or use other pre-defined options such as “x1”, “x2”, “x5” and “x10” to exaggerate the vertical scale by 1-, 2-, 5- or 10-times.
Sag-Crest Points: After adding one or more vertical curves to the design Profile, a list of the “sag” and “crest” points along the Profile will be listed in the drop-down box.
Through Point: After selecting a PVI in the table-view, pick this button to force a sag or crest point to a specific station and elevation.
Check Station: To find the precise Elevation, Slope and Reference Elevation (existing ground) for a specific station, enter the station in the text box andpress Enter.
Insert PVI: Before picking the Insert PVI button, the user must use the mouse to select/highlight a cell in the profile table-view. Then, picking the Insert PVI button will create a blank row, above the selected row, allowing the user to enter the information for the new PVI.
Remove PVI: Before picking the Remove PVI button, the user must use the mouse to select/highlight a cell in the row corresponding to the PVI to be removed. Then, picking the Remove PVI button will delete the selected row/PVI from the Profile.
Screen Pick PVI: Picking this button allows the user to change the station of a PVI by screen picking a location in the drawing. Before picking theScreen Pick PVI button, the user must use the mouse to select/highlight a cell in the corresponding row of the PVI to be changed. Then, picking theScreen Pick PVI button changes the user to the active drawing screen, prompting the user to “Pick PVI Point:” in the drawing area.
Show Sections: This option is only available if the Template (.TPL) file for the Road has already been specified in the Edit Roads dialog box. When picked, the Show Sections button will open a “Road Design Section Data” viewer window while keeping the “Road Profile” window open as well. This provides the user a dynamic design environment in which the plan-, profile- and section-views are visible at one time. Additionally, when the “Section” viewer window is open, the notes at the top of the profile-grid-view include the “Cut” and “Fill” end-area at the current station along with the “Cut” and “Fill” volume for the entire Road. These calculations are dynamic and will update if changes are made to the design Profile. Use the Specific Station to check the section at a station. Or move the cursor in the profile preview graphic to change the section station.
Translate: Picking this button will display the Translate Profile dialog box and allows the user to change the elevation of the entire Profile or a range of stations along the Profile.
Save: This button saves changes to the Profile (.PRO) file.
Exit: This button exits the Input-Edit Road Profile editor dialog box.
Undo: This button will undo the last change made to the Profile.
Setup: This button opens the Road Profile Settings dialog box. See below for more information.
Vertical Speed Tables: Use this button to specify the Vertical Curve Speed Table (.VST) files to use for the design of this Road.
Road Profile Settings
Reference CL File: In the Road Network feature, the “Reference CL File” is automatically set to the Centerline (.CL) file associated with the Road.
Hold Current Elevation: When enabled and the station and elevation of a PVI changes, the “Slope Out” of the adjusted PVI will change but the elevation of the next PVI will be left unchanged. Otherwise, if not enabled, the “Slope Out” of the adjusted PVI is held and the elevation of the next PVI is changed.
Grid Ticks Only: When enabled, only grid ticks will be shown in the profile-grid-view. Otherwise grid lines will be used.
Set Grid Interval: If enabled, this option allows the user to manually specify the grid- or grid-tick interval shown in the profile-grid-view.
Show Slope When Zoom In: When enabled, this option allows the user to display the slopes on those vertical tangents that are long enough to display a slope label when Zoom-ing in closer to the Profile.
Show Reference Surface: When enabled, this option displays the Profile of a “Reference Surface” in addition to the design Profile. The “Reference Surface” is typically the original or existing ground Profile.
Show Reference Surface at Left Offset: When enabled, this option allows the user to see an additional Profile that is offset horizontally from the “Reference Centerline”. The offset distance can be specified after the option is enabled.
Show Reference Surface at Right Offset: When enabled, this option allows the user to see an additional Profile that is offset horizontally from the “Reference Centerline”. The offset distance can be specified after the option is enabled.
Show Centerline Special Stations: When enabled, critical Centerline stations such as PC, PT, SC, ST, TS and SP are shown in the profile-grid-view.
Show Vertical Lines for Intersections: When enabled, this option will display a vertical line representing the Centerline and Edge of Pavement stations for other Roads in the Road Network.
Show Sag-Crest Points: When enabled, this option displays a marker at the sag and crest points of each vertical curve.
Extend Reference Centerline: When enabled, the user may provide an extended range of stations so as to show Profile data beyond that generated along the associated Centerline (.CL) file. For instance, for a new Road tying into an existing Road (proposed CL file starts at the Intersection of the Centerline of the existing Road) an extended range of stations may be desired in order to see the Profile of the cross-slope, curb, ditch and slope across both sides the existing Road.
Output Reference Surface Profile and Suffix: When enabled, this option will generate an existing ground Profile (.PRO) file and allows the user to specify a suffix for the filename. The defaults for this option are set using the Output File Defaults button in the Output Options tab of the Road Network Settings dialog box.
Reference Surface: The “Reference Surface” is an additional surface Profile shown in the profile-grid-view alongside the design Profile. For the Road Network feature, the “Reference Surface” is the surface specified as “Existing Ground” in Road Network Settings dialog box.
Check Road Design Parameters: When enabled, this option will compare the current Road design to an established set of design parameters set in a Road Design Parameters (.RDP) file. Please refer to the Help files for the Road Design Parameters command if additional assistance is needed.
Display Sight Distance Options: Use this radio button to display either a “Sight Distance” or “K-Value” column in the profile-table-view.
Drag PVI Options: Use this radio button to specify the design criteria to “hold” when using the Edit/Drag PVI command in the profile-grid-view. The options are to “Hold Vertical Curve Length”, “Hold K-Value” or “Hold Sight Distance”.
Click here to go to Adding and Editing Intersections