Overlay Level Crown

C3D Overlay_Level_Crown — crowned two-lane overlay with a levelling course

At a glance


Kind	Subassembly (composed into an assembly)
Domain	Road
Civil 3D equivalent	`Overlay_Level_Crown`
Geometry	12 points, 8 links, 1 shapes
Targets	1 (surface / offset / elevation targets this subassembly can be linked to)

Parameters

Defaults are the metric values the palette inserts. Every parameter can be driven by an expression or a target.

Parameter	Type	Default	Meaning
`OverlayDepth`	number (metres unless the description says otherwise)	0.2	Overlay thickness (m)
`CrownOffset`	number (metres unless the description says otherwise)	0	Crown offset from the attach (m)
`LeftDefaultSlope`	cross slope as a ratio (−0.02 = 2 % fall)	-0.02	Left design cross slope
`RightDefaultSlope`	cross slope as a ratio (−0.02 = 2 % fall)	-0.02	Right design cross slope
`LeftOutsideEdgeOfExistingLane`	number (metres unless the description says otherwise)	3.6	Left existing lane outside edge (m)
`RightOutsideEdgeOfExistingLane`	number (metres unless the description says otherwise)	3.6	Right existing lane outside edge (m)
`LeftMinLevelDepth`	number (metres unless the description says otherwise)	0.1	Left minimum levelling course (m)
`RightMinLevelDepth`	number (metres unless the description says otherwise)	0.1	Right minimum levelling course (m)
`LeftSlopeTolerance`	cross slope as a ratio (−0.02 = 2 % fall)	0.005	Left existing-slope tolerance
`RightSlopeTolerance`	cross slope as a ratio (−0.02 = 2 % fall)	0.005	Right existing-slope tolerance
`LeftOverlaySlopeOptions`	whole number / mode selector	3	Left: 0 existing±tol, 1 match existing, 3 default±tol, 5 default
`RightOverlaySlopeOptions`	whole number / mode selector	3	Right: 0 existing±tol, 1 match existing, 3 default±tol, 5 default
`UseProfileOptions`	whole number / mode selector	1	0 minimum depth off the existing surface, 1 use profile, 2 lock to previous

Points

Point codes are what feature lines, styles and quantity take-off match on — they are the contract this subassembly publishes.

Point	Code	Placed	From	Expression
`ESC`	—	horizontal delta, elevation taken from the target surface	—	`CrownOffset / 0`
`ESL`	—	horizontal delta, elevation taken from the target surface	—	`CrownOffset-LeftOutsideEdgeOfExistingLane / 0`
`ESR`	—	horizontal delta, elevation taken from the target surface	—	`CrownOffset+RightOutsideEdgeOfExistingLane / 0`
`C`	Crown	placed at the attachment point (an absolute offset/elevation)	—	`CrownOffset / VC`
`L`	EOV	offset + elevation delta from the reference point	C	`0-LeftOutsideEdgeOfExistingLane / LDS*abs(LeftOutsideEdgeOfExistingLane)`
`R`	EOV	offset + elevation delta from the reference point	C	`RightOutsideEdgeOfExistingLane / RDS*abs(RightOutsideEdgeOfExistingLane)`
`CO`	Crown_Overlay	offset + elevation delta from the reference point	C	`0 / 0-OverlayDepth`
`LO`	EOV_Overlay	offset + elevation delta from the reference point	L	`0 / 0-OverlayDepth`
`RO`	EOV_Overlay	offset + elevation delta from the reference point	R	`0 / 0-OverlayDepth`
`LM`	—	offset + elevation delta from the reference point	LO	`0 / if(ExistingSurface.IsValid>0.5,ESL.Y-LO.Y,0-LeftMinLevelDepth)`
`RM`	—	offset + elevation delta from the reference point	RO	`0 / if(ExistingSurface.IsValid>0.5,ESR.Y-RO.Y,0-RightMinLevelDepth)`
`CM`	Crown_Leveling	offset + elevation delta from the reference point	CO	`0 / if(ExistingSurface.IsValid>0.5,ESC.Y-CO.Y,0-0.5*(LeftMinLevelDepth+RightMinLevelDepth))`

Links

Link	Code	Between	Role
`L1`	Top,Pave	L → C	drawn
`L2`	Top,Pave	C → R	drawn
`L6`	Overlay	R → RO	drawn
`L4`	Overlay	RO → CO	drawn
`L3`	Overlay	CO → LO	drawn
`L5`	Overlay	LO → L	drawn
`M1`	Level	LM → CM	drawn
`M2`	Level	CM → RM	drawn

Shapes (materials)

Shape	Material code	Boundary points
`S1`	Overlay	L, C, R, RO, CO, LO

Generated page. The tables above are read from the built-in catalogue itself (yu3d_stock_dump), so they always match the version of yucad3d you are running.