View and edit superelevation data for each curve or enter data manually.
The information that is displayed in the Superelevation Tabular Editor varies depending on the type of roadway.
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Collapses all items in the tree view.
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Expands all items in the tree view.
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Add A Superelevation Critical Station
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Specifies a station along the alignment. Select a row in the editor and click
, the tabular editor temporarily closes and the command line prompts you to pick a station along the alignment. -
Delete Critical Station or Superelevation Region -
Deletes the selected region or station.
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Import Superelevation Data From File
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Displays the Superelevation Import dialog box. Click
and browse to the location of the CSV file you want to import. -
Export Superelevation Data
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Displays the Export to CSV dialog box. Browse to the location where you want to save the CSV file. All data that is visible in the Superelevation Tabular Editor is saved in the CSV file.
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Undo
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Recovers the most recently changed data in the Superelevation Tabular Editor.
This button affects:
- changed value in a cell
- import of a CSV file
- calculation from the Superelevation Curve Manager or Calculate Superelevation wizard
- addition or removal of a critical station
- removal of a transition region
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Redo
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Recovers the data that was reverted using Undo in the Superelevation Tabular Editor.
This button affects:
- changed value in a cell
- import of a CSV file
- calculation from the Superelevation Curve Manager or Calculate Superelevation wizard
- addition or removal of a critical station
- removal of a transition region
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Clear All Superelevation Data
- Removes all superelevation data, including data in cells, critical stations, and transition regions.
Columns
- Superelevation Curve
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This column displays the Transition In and Transition Out Regions for the curves in the alignment.
Expand each region to view or edit the superelevation parameters.
To manually add a new critical station, right-click a region or a parameter
Add Station. Critical Stations include:
- Begin Normal Crown
- Begin Normal Shoulder
- Begin Full Super
- End Full Super
- End Normal Crown
- End Normal Shoulder
- Level Crown
- Low Shoulder Match
- Reverse Crown
- Shoulder Breakover
- Begin Shoulder Rollover
- End Shoulder Rollover
- Start Station and End Station
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Displays the start station and end station. When you edit these fields for a Runout or Runoff region or a critical station, the distance field and rate of change field are updated. If the station you edit is the same as the Start Station or End Station of a Runout or Runoff region, that station value is also updated and the transition formula (% into tangent or spiral) is not maintained.
- Length
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Displays the length for the Transition In Region and the Transition Out Region. Specifies the length for the Runout and Runoff. Editing the length value changes the station values and the rate of change field. The station value(s) update with respect to the beginning or end of curve. The station value associated with curve start and end changes when you change the distance values to maintain the percentage of transition shift into the specified curve.
For example: without changing any of the other distance values.
- 30% of transition length should be into the curve
- Start Station of Runoff is 1+00
- End Station is 2+00
- Beginning of Curve station is 1+70
and then change the Runoff value to 150 feet, you get the following results:
- 30% of transition length should be into the curve
- Start Station of Runoff becomes 0+65
- End Station of Runoff becomes 2+15(to maintain the transition length at 30% into the curve)
- Beginning of Curve station is 1+70
Any other stations or regions associated with the superelevation curve shift by the same amount.
- Overlap
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Displays the
warning symbol for areas on the alignment where there is overlap. Click the , and a task dialog box is displayed showing the options to resolve overlap. The conditions are either a reverse curve situation or a compound curve situation. To automatically resolve overlap you can select the option on the Attainment page in the Superelevation wizard. However, there can be situations where overlap is created by manually editing or by importing superelevation data. - Rate of Change
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Specifies the change in slope over the distance between one critical station and the previous (sequential) critical station for each lane. If you make changes to this field, the stations and distance values stay the same and the slope values changes accordingly. (This column is hidden by default).
- Curve Smoothing
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Displays the curve smoothing if the option for curve smoothing was specified in the Superelevation wizard. (This column is hidden by default)
- All Lane Columns
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Changes in lane columns are reflected in the rate of change value associated with the lane that you edit.