Urban Curb and Gutter - UXCADconnection

Overview

The UXCAD Dynamic Curb subassembly creates a configurable curb section with control over flange, flowline, top front, and top back geometry. It is designed to let the user build curb conditions using either fixed dimensions, grades, or target-driven control points. This subassembly is useful for curb and gutter conditions where the curb shape needs to remain flexible while still maintaining consistent Civil 3D point, link, and shape coding.

Preview

Primary Use Cases

Standard curb and gutter sections
Flange-to-flowline controlled curb layouts
Flowline-to-top-front curb face control
Top-front-to-top-back curb cap control
Target-driven curb geometry
Code-controlled corridor surfaces and quantities

Attachment

The attachment point is located at the Flange, FlowLine and Top Back Curb of the curb section.

Input Parameters

Parameter	Display Name	Description	Type	Default
Insertion_Point	Attachment Point	Controls where the subassembly attaches.	InsertionPoint	InsertionPoint_Flange
Side	Side	Determines whether the subassembly is placed left or right.	Side	Right
Dimension_H	Curb Depth	Controls the overall curb depth.	Double	0.5
BackAttachPoint_Visibility	Show Back of Curb Attach Point	Toggles the back curb attachment point on or off.	Yes/No	No
Dimension_G	Back of Curb Attachment Depth	Controls the back attachment depth.	Double	0.25
Flange_Flowline_Set	(FL) Set by Height or Grade	Controls whether flange-to-flowline is driven by height or grade.	Flange_FlowLine	Flange_FlowLine_Grade
Dimension_B	Flange to FlowLine Distance	Horizontal distance from flange to flowline.	Double	2
Dimension_A	Flange to FlowLine Height	Vertical height difference from flange to flowline.	Double	-0.1
Dimension_A1	Flange to FlowLine Grade	Grade from flange to flowline.	Grade	-2.00%
Flowline_TopFront_Set	(TFC) Set by Height or Grade	Controls whether flowline-to-top-front is driven by height or grade.	FlowLine_TopFront	FlowLine_TopFront_Depth
Dimension_C	FlowLine “FL” to TopFront “Face” Distance	Horizontal distance from flowline to top front face.	Double	0.5
Dimension_D	FlowLine “FL” to TopFront “Face” Height	Vertical height from flowline to top front face.	Double	0.5
Dimension_D1	FlowLine “FL” to TopFront “Face” Grade	Grade from flowline to top front face.	Grade	100.00%
TopFront_TopBack_Set	Top Front “Face” to Top Back “TBC” Set by Height or Grade	Controls whether top-front-to-top-back is driven by height or grade.	TopFront_TopBack	TopFront_TopBack_Grade
Dimension_E	Top Front “Face” to Top Back “TBC” Distance	Horizontal distance from top front to top back.	Double	0.5
Dimension_F	Top Front “Face” to Top Back “TBC” Height	Vertical height difference from top front to top back.	Double	0
Dimension_F1	Top Front to Top Back Grade	Grade from top front to top back.	Grade	0.00%

Target Parameters

Target Parameter	Type	Description	Required
Target_Flange_Elevation	Elevation	Optional elevation target for the flange point.	Optional
Target_Flange_Offset	Offset	Optional offset target for the flange point.	Optional
Target_FlowLine_Elevation	Elevation	Optional elevation target for the flowline point.	Optional
Target_FlowLine_Offset	Offset	Optional offset target for the flowline point.	Optional
Target_TopFront_Elevation	Elevation	Optional elevation target for the top front point.	Optional
Target_TopFront_Offset	Offset	Optional offset target for the top front point.	Optional
Target_TopBack_Elevation	Elevation	Optional elevation target for the top back point.	Optional
Target_TopBack_Offset	Offset	Optional offset target for the top back point.	Optional

Enumerations

The UXCAD Dynamic Curb subassembly uses enumerations to simplify user control and reduce unnecessary parameter exposure. These dropdown-driven controls determine how geometry is calculated throughout the curb section.

InsertionPoint

Controls where the subassembly attaches to the corridor assembly.

Enum Item	Display Name	Description
InsertionPoint_Flange	Flange	Attaches the subassembly at the flange point.
InsertionPoint_FlowLine	Flow Line	Attaches the subassembly at the flowline point.
InsertionPoint_TopBack	Top Back	Attaches the subassembly at the top back curb point.

Flange_FlowLine

Controls how the flange-to-flowline relationship is calculated.

Enum Item	Display Name	Description
Flange_FlowLine_Depth	Height	Uses a vertical height difference between flange and flowline.
Flange_FlowLine_Grade	Grade	Uses a grade value between flange and flowline.

FlowLine_TopFront

Controls how the flowline-to-top-front curb face is calculated.

Enum Item	Display Name	Description
FlowLine_TopFront_Depth	Height	Uses a vertical height difference from flowline to top front.
FlowLine_TopFront_Grade	Grade	Uses a grade value from flowline to top front.

TopFront_TopBack

Controls how the top-front-to-top-back curb section is calculated.

Enum Item	Display Name	Description
TopFront_TopBack_Depth	Height	Uses a vertical height difference from top front to top back.
TopFront_TopBack_Grade	Grade	Uses a grade value from top front to top back.

Code List by Insertion Point

Flange

Object	Code
P1	Flange
P2	Flowline_Gutter
P3	Top_Curb
P4	Back_Curb

Flow Line

Object	Code
L1	Top, Curb
L2	Top, Curb
L6	Datum

Top Back

Object	Code
S1	Curb

Behavior

The curb is built from the flange point and continues outward through the flowline, top front, and top back geometry. Each major curb segment can be controlled by a fixed height, fixed grade, or target parameter depending on the selected control method.

Notes

Use this subassembly when the curb section needs to remain flexible across different design conditions without creating multiple separate curb subassemblies.

Recommended Image Setup

Save your screenshots or Affinity graphics here:

/images/uxcad-dynamic-curb-preview.png
/images/uxcad-dynamic-curb-parameters.png
/images/uxcad-dynamic-curb-targets.png

Parameter	Display Name	Description	Type	Default
Insertion_Point	Attachment Point	Controls where the subassembly attaches.	InsertionPoint	InsertionPoint_Flange
Side	Side	Determines whether the subassembly is placed left or right.	Side	Right
Dimension_H	Curb Depth	Controls the overall curb depth.	Double	0.5
BackAttachPoint_Visibility	Show Back of Curb Attach Point	Toggles the back curb attachment point on or off.	Yes/No	No
Dimension_G	Back of Curb Attachment Depth	Controls the back attachment depth.	Double	0.25
Flange_Flowline_Set	(FL) Set by Height or Grade	Controls whether flange-to-flowline is driven by height or grade.	Flange_FlowLine	Flange_FlowLine_Grade
Dimension_B	Flange to FlowLine Distance	Horizontal distance from flange to flowline.	Double	2
Dimension_A	Flange to FlowLine Height	Vertical height difference from flange to flowline.	Double	-0.1
Dimension_A1	Flange to FlowLine Grade	Grade from flange to flowline.	Grade	-2.00%
Flowline_TopFront_Set	(TFC) Set by Height or Grade	Controls whether flowline-to-top-front is driven by height or grade.	FlowLine_TopFront	FlowLine_TopFront_Depth
Dimension_C	FlowLine “FL” to TopFront “Face” Distance	Horizontal distance from flowline to top front face.	Double	0.5
Dimension_D	FlowLine “FL” to TopFront “Face” Height	Vertical height from flowline to top front face.	Double	0.5
Dimension_D1	FlowLine “FL” to TopFront “Face” Grade	Grade from flowline to top front face.	Grade	100.00%
TopFront_TopBack_Set	Top Front “Face” to Top Back “TBC” Set by Height or Grade	Controls whether top-front-to-top-back is driven by height or grade.	TopFront_TopBack	TopFront_TopBack_Grade
Dimension_E	Top Front “Face” to Top Back “TBC” Distance	Horizontal distance from top front to top back.	Double	0.5
Dimension_F	Top Front “Face” to Top Back “TBC” Height	Vertical height difference from top front to top back.	Double	0
Dimension_F1	Top Front to Top Back Grade	Grade from top front to top back.	Grade	0.00%

Target Parameter	Type	Description	Required
Target_Flange_Elevation	Elevation	Optional elevation target for the flange point.	Optional
Target_Flange_Offset	Offset	Optional offset target for the flange point.	Optional
Target_FlowLine_Elevation	Elevation	Optional elevation target for the flowline point.	Optional
Target_FlowLine_Offset	Offset	Optional offset target for the flowline point.	Optional
Target_TopFront_Elevation	Elevation	Optional elevation target for the top front point.	Optional
Target_TopFront_Offset	Offset	Optional offset target for the top front point.	Optional
Target_TopBack_Elevation	Elevation	Optional elevation target for the top back point.	Optional
Target_TopBack_Offset	Offset	Optional offset target for the top back point.	Optional

Code List by Insertion Point

Flange

Object	Code
P1	Flange
P2	Flowline_Gutter
P3	Top_Curb
P4	Back_Curb

Flow Line

Object	Code
L1	Top, Curb
L2	Top, Curb
L6	Datum

Top Back

Object	Code
S1	Curb

​Overview

​Preview

​Primary Use Cases

​Attachment

​Input Parameters

​Target Parameters

​Enumerations

​

​Code List by Insertion Point

Flange

Flow Line

Top Back

​Behavior

​Notes

​Recommended Image Setup

​Code List by Insertion Point

Flange

Flow Line

Top Back

Overview

Preview

Primary Use Cases

Attachment

Input Parameters

Target Parameters

Enumerations

Code List by Insertion Point

Behavior

Notes

Recommended Image Setup

Code List by Insertion Point