DaylightBench

Attachment

The attachment point is at the inside edge of the initial cut or fill slope. 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
Cut Slope	The slope for the cut daylight slope	Numeric, positive	2 ( : 1)
Max Cut Height	The maximum allowable height for the cut daylight link without benching	Numeric	3.0 m 10.0 ft
Fill slope	The slope for the fill daylight slope	Numeric, positive	2 ( : 1)
Max Fill Height	The maximum allowable height for the fill daylight link without benching	Numeric, positive	3.0 m 10.0 ft
Bench Width	The width of the bench	Numeric, positive	1.5 m 5.0 ft
Bench % Slope	The +/- % slope of the bench. Positive slopes are upward in the direction of increasing offset	Numeric	2 (%)
Rounding Option	Specifies to round off the daylight link at the catch point	String	None
Rounding By	Specifies what parameter is used for rounding	String	Length
Rounding Parameter	Specifies value for length or radius	Numeric, positive	1.500 ft
Rounding Tesselation	Specifies number of intermittent points on rounding links (maximum 10 links)	Numeric, positive	6
Place Lined Material	Specifies to place optional material lining along daylight links. You can choose All Links, Daylight Links, Fill Links Only, and None.	String	None
Slope Limit 1	Specifies the slope limit until which the associated material lining is placed	Slope	1 : 1
Material 1 Thickness	Specifies the thickness of lined material. This thickness is measured perpendicular to the link.	Numeric, positive	12 inches
Material 1 Name	Specifies the name of the material applies for lining along grading links	String	Rip Rap
Slope Limit 2	Specifies the slope limit until which the associated material lining is placed	Slope	2 : 1
Material 2 Thickness	Specifies the thickness of lined material. This thickness is measured perpendicular to the link.	Numeric, positive	6 inches
Material 2 Name	Specifies the name of the material applies for lining along grading links	String	Rip Rap
Slope Limit 3	Specifies the slope limit until which the associated material lining is placed	Slope	4 : 1
Material 3 Thickness	Specifies the thickness of lined material. This thickness is measured perpendicular to the link.	Numeric, positive	4 inches
Material 3 Name	Specifies the name of the material applies for lining along grading links	String	Seeded Grass

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
Daylight Surface	Name of the daylighting surface. The following object types can be used as targets for specifying the surface: surfaces.	Required

Output Parameters

Parameter	Description	Type
Daylight Offset	Offset of the daylight point	Numeric
Daylight Elevation	Elevation of the daylight point	Numeric

Behavior

The initial hinge point is set at the attachment point. The hinge point elevation is checked against the target surface to determine if the section is in the cut or fill condition. An intercept is calculated to the target surface using the given Cut Slope or Fill Slope. If the height to the intercept exceeds the Max Height, the link with the Max Height is inserted, and the bench link is added. The hinge point is reset to the outside edge of the bench and the process is repeated until a daylight link is found that does not exceed the Max Height.

Like other daylight subassemblies, this subassembly optionally lets you add a lined material. You can specify three ranges of slopes. Material type 1 is applied if the slope of the links is up to the specified slope value. From slope 1 to slope 2, the second type of material applied. Similarly, if the slopes of links fall within slope 2 and slope 3 values, then material 3 is applied. If the link slopes are flatter than slope limit 3, then no material is applied.

If a lined material is added to the subassembly, then parallel links are added to the daylight links with specified thickness. This thickness parameter (for example, Material 1 Thickness) is measured perpendicular to the link. Bottom level links are coded with Datum and daylight links are coded with Top. Shapes enclosed by these materials are coded with material name.

Note:

In Autodesk Civil 3D 2010 and previous versions, the Material Thickness parameter was measured vertically. In Autodesk Civil 3D 2011 and later, this parameter is measured perpendicular to the link. Therefore, if you open a drawing containing these subassemblies that was created in Autodesk Civil 3D 2010 or prior in Autodesk Civil 3D 2011 or later, and then rebuild the corridor(s), this parameter will be changed to reflect the new behavior. Any volume reports that use this subassembly will be updated to reflect the new behavior.

Layout Mode Operation

In layout mode, this subassembly draws the initial cut and fill slopes to their maximum heights, a single bench, followed by cut and fill daylight slopes for half the maximum heights. The daylight links terminate with an arrowhead pointing outwards.

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	Hinge Hinge_Cut or Hinge_Fill	Hinge point, either for the cut or fill condition. This only applies to the inside edge of the actual daylighting link.
P2	Daylight Daylight_Cut or Daylight_Fill	Daylight point, and daylight point for either the cut or fill condition. This only applies to the actual daylight point.
P2	Bench_In	The inside edge of the bench(es)
P3	Bench_Out	The outside edge of the bench(es)
All links	Top Datum
Final daylight link	Top Datum Daylight Daylight_Cut	Daylight link for cut section
Final daylight link	Top Datum Daylight Daylight_Fill	Daylight link for fill section