LinkSlopeToElevation

This subassembly is a general purpose utility to extend a link at a given slope until it reaches a defined elevation or profile.

Attachment

The attachment point is at the inside edge of the link. This subassembly can be inserted in the left or right direction from the attachment point.

Input Parameters

Note: All dimensions are in meters or feet unless otherwise noted. All slopes are in run-over-rise form (for example, 4 : 1) unless indicated as a percent slope with a “%” sign.

Parameter	Description	Type	Default
Side	Specifies which side to place the subassembly	Left/Right	Right
Use Superelevation Slope	Specifies to use superelevation slope	Selection list	No
Slope Direction	Specifies whether the link slopes away from the crown or towards the crown	Selection list	Away from Crown
Slope	% or ratio slope of the link. Negative slopes go downward in the direction inserted.	Numeric, positive	2 (%), (or 2:1)
Target Elevation	Elevation value to extend the link to at the given slope	Numeric	0.0
Point Codes	A list of surface codes to be assigned to the outside edge of the link	Comma-separated string	P2
Link Codes	A list of codes to be assigned to the link	Comma-separated string	Top, Datum
Omit Link	This parameter adds or removes the surface link.	Yes\No	No
Use Superelevation	Specifies to use superelevation slope for the shoulder	Selection List: a) Outside Shoulder Slope, b) Inside Shoulder Slope, c)Outside Lane, d)Inside Lane, e) None	None

Target Parameters

This section lists the parameters in this subassembly that can be mapped to one or more target objects, such as a surface, alignment, or profile object in a drawing. For more information, see To Specify Corridor Targets.

Parameter	Description	Status
Target Elevation	May be used to override the fixed Target Elevation and tie the end-of-link to a profile. The following object types can be used as targets for specifying this elevation: profiles, 3D polylines, feature lines, or survey figures.	Optional

Output Parameters

Parameter	Description	Type
Begin Offset	+/- offset of the beginning of the link	Numeric
Begin Elevation	Elevation of the beginning of the link	Numeric
End Offset	+/- offset of the end of the link	Numeric
End Elevation	Elevation of the end of the link	Numeric

Behavior

A link is added from the attachment point in the direction of insertion for the given slope until it reaches the target elevation or profile. The slope value is applied upward if the target elevation is above the attachment point, otherwise a negative slope is used.

This subassembly includes an optional input parameter named Use Superelevation Slope that lets you specify to use the superelevation slope for the shoulder. This parameter can be set to a) Outside shoulder slope, b) Inside shoulder slope, c)Outside Lane, d)Inside Lane, or e) None. None is the default setting.

Layout Mode Operation

In layout mode, this subassembly displays the link at the given slope for a horizontal distance of 3 meters or 10 feet.

Point, Link, and Shape Codes

None.

Coding Diagram