Use this page of the wizard to specify a variety of details about the geometry of the junction object.
Intersecting Alignments
Use this section to view information on the alignments included in this junction. You can view the alignment name, priority, the chainage where the junction occurs, and the profile associated with the alignment. If other profiles exist, you can select a different profile from the drop-down list.
- Priority
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The priority determines how profile locking occurs for the profiles associated with the junction. You can change the priority of an alignment (road) during junction creation by selecting an alignment in this list and using the arrows. It is important to note that when you do this, the associated profiles may change. Once a junction object is created, you cannot change the value of the priority property.
Offset and Corner Radius
Specifies information on the alignment offsets and corner radius for this junction.
- Create Or Specify Offset Alignments
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When this option is selected, offset alignments will be created for the junction. If you do not want offset alignments included in the junction, remove the check mark from this option. If you do not select an existing alignment from the current drawing, then a new offset alignment object is created. To select an existing offset alignment from the drawing, click the Offset Parameters button, set Use An Existing Alignment to Yes, then select the alignment by clicking
next to the Alignment Name field. - Offset Parameters
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Before deciding to create offset alignments, you can view or edit the parameters that will be used for creating the offset alignments by clicking the Offset Parameters button. This displays the Junction Offset Parameters dialog box which lets you specify an existing alignment to use, or create a new one according to the offset value you specify.
- Create Corner Radius Alignments
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When this option is selected, corner radius alignments will be created for the junction. If you do not want corner radius alignments included in the junction, remove the check mark from this option.
- Corner Radius Parameters
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Before deciding to create corner radius, you can view or edit the parameters that will be used for creating the corner radius by clicking the Corner Radius Parameters button. This displays the Junction Corner Radius Parameters dialog box, which lets you specify the corner radius type (chamfer, circular fillet, or 3-centered arcs), and other details, such as radius for the corner radius.
Offset and Corner Radius Profiles
These options let you create offset and corner radius profiles for this junction. If the intersecting alignments do not have profiles associated with them, these options are not available.
- Create Offset and Corner Radius Profiles
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Selecting this option creates offset and corner radius profiles for this junction. This option is not available when the intersecting alignments selected for this junction do not have profiles associated with them.
- Lane Crossfall Parameters
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Clicking this button displays the Junction Lane Crossfall Parameters dialog box where you can view or edit the lane crossfalls for the roads included in the junction object. This option is not available when the intersecting alignments selected for this junction do not have profiles associated with them.
- Corner Radius Profile Parameters
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Clicking this button displays the Junction Corner Radius Profile Parameters dialog box where you can view or edit the parameters for the corner radius profile included in the junction object. This option is not available when the intersecting alignments selected for this junction do not have profiles associated with them.
On this dialog box, you can click Back to return to previous wizard dialog boxes, Next to move to the next wizard dialog box, Create Junction to create the junction using the currently selected setting, or Cancel to cancel creating the junction.