ShoulderBacking

Attachment

The attachment point is at the inside edge of the shoulder backing. This component can be attached to either the left or right side.

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
Shoulder Backing Width	Width of shoulder backing	Numeric, positive	2 ft 0.6 m
Grade of Shoulder Backing	Grade of shoulder backing	Numeric	-5%
Thickness of Shoulder Backing	Thickness of shoulder backing	Numeric, positive	0.25 ft 0.08 m

Target Parameters

This section lists the parameters in this subassembly that can be mapped to one or more target objects. For more information, see To Specify Corridor Targets.

Parameter	Description	Status
Shoulder Backing Surface	Name of the daylighting surface. The following object types can be used as targets for specifying the surface: surfaces.	Optional

Runtime Logical Assignments

None.

Output Parameters

None.

Behavior

The initial point is set at the attachment point. The initial shoulder backing sides and top are constructed from the input parameters. The bottom inside and outside point elevations are checked against the target surface to determine if the point is in the cut or fill condition. If both are in, the bottom link is created at a matching grade of the top link.

If in fill, the shoulder backing bottom is extended to the surface target.

Layout Mode Operation

In layout mode, this subassembly draws the shoulder backing using the input parameters.

Point, Link, and Shape Codes

The following table lists the point, link, and shape codes for this subassembly that have codes assigned to them. Point, link, or shape codes for this subassembly that do not have codes assigned are not included in this table.

Point, Link, or Shape	Code	Description
P1, P2	Backing	Shoulder backing
P3, P4	Backing_Sub	Bottom of shoulder backing
L1	Top, Backing	Top of shoulder backing
L3	Datum	Bottom of shoulder backing
S1	Backing	Shoulder backing area