Use this dialog box to specify new corridor region parameters, including baselines, regions, and controlling offsets
This dialog box is displayed when the
Set Baseline and Region Parameters box is selected in the
Create Corridor dialog box. You can also access this dialog box after creating a corridor by expanding the
Corridors 
<corridor name> collection on the
Prospector tab, right-clicking a <baseline name> and clicking
Properties.
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Expands all baseline categories.
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Collapses all baseline categories.
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Turns on all baselines.
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Turns off all baselines.
- Add Baseline
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Adds another baseline to the corridor definition.
- Set All Frequencies
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Opens the Frequency to Apply Assemblies dialog box, where you can specify the increments at which assemblies are placed along tangents, curves, spirals, and other geometry points.
- Set All Targets
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Opens the Target Mapping dialog box, where you can map targets from subassembly definitions to appropriate drawing object names for the entire corridor. If you subsequently add an assembly region that uses the same set (or subset) of targets, the mappings are automatically assigned.
Note: If targets are required and not set, messages are displayed in the Event Viewer. To display the Event Viewer, click.
The properties table contains the following columns:
- Name
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Displays a tree listing all baselines, regions, and corresponding offset baselines.
Note: Offset baselines are displayed if the assembly is defined with assembly offsets.The check boxes beside the baselines and regions specify whether to show (selected) or hide (cleared) the baselines or regions. If the check box is cleared, that section of corridor is not reprocessed when underlying elements (for example, alignments, subassemblies, or surfaces) change.
Note: The check boxes have a tri-state display. If only one of the regions is selected under a baseline, the check box is dimmed and unavailable.
- Horizontal Baseline
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Specifies the horizontal geometry for a baseline or offset baseline. Click this field to open the Select a Horizontal Baseline dialog box where you can select an alignment/profile or a feature line.
Note: For non-offset baselines, when you select a feature line, that feature line is also used as the Vertical Baseline. - Vertical Baseline
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Specifies the vertical geometry for a baseline or offset baseline. The dialog box that is displayed when you click this field depends on whether the baseline is an offset baseline or not, and the type of baseline you specify for the Horizontal Baseline.
Baseline Horizontal Baseline Vertical Baseline Non-offset Alignment Profile; this must be a profile that is associated with the horizontal baseline alignment Non-offset Feature Line Not selectable; this is the same feature line as the horizontal baseline Offset Alignment Alignment/Profile; the alignment and profile can be different than what is specified for the horizontal baseline Offset Feature Line Feature Line; can be different than the horizontal baseline - Assembly
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Opens the Select An Assembly dialog box where you can select an assembly for the corridor region.
- Start Station
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Specifies the start station for the region or controlling offset. By default, for the first region added to a baseline, this value is set to the start station of the baseline. If one or more corridor regions already exist, this value is set to the end station of last region. Enter a value or click
to select a location in the drawing area.
- End Station
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Specifies the end station for the region or controlling offset. By default, for the first region added to a baseline, this value is set to the end station of the baseline. Enter a value or click
to select a location in the drawing area.
- Frequency
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Specifies the frequency at which assemblies are placed for a given baseline or region. Click
to open the
Frequency to Apply Assemblies dialog box, where you can modify the station frequency and manually add stations.
- Target
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Click
to open the
Target Mapping dialog box, where you can map targets from subassembly definitions to appropriate drawing object names for the region.
- Overrides
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This field is disabled when you are creating a corridor. For more information, see To View and Delete Overridden Corridor Stations for a Region.
- Lock Regions To
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Specifies whether to lock the corridor regions to either the geometry or station of the parent alignment:
- Geometry Locking: Locks corridor regions to the alignment geometry. If the alignment is modified, the corridor region start and end stations are updated to maintain the region location relative to the alignment geometry.
- Station Locking: Locks corridor region start and end stations to the corresponding alignment stations. If the alignment is modified, the corridor region start and end stations are maintained, even if the region must move geometrically.