The CurbAndGutterCurbRamp subassembly inserts links for a standard shape concrete curb-and-gutter with subbase that allows for adjustment of the curb height by a profile to allow for the modeling of a curb ramp. User-defined input parameters control the dimensions of the shape.
Attachment
The attachment point is at the flange point of the gutter, the flowline, or the back of the curb.
Input Parameters
|
Parameter |
Description |
Type |
Default |
|---|---|---|---|
| Side | Specifies which side to place the subassembly | Left / Right | Right |
| Insertion Point | Specifies insertion point of the curb and gutter as either Gutter Edge, flowline, or Back of Curb | GutterEdge / CurbBack / Flowline | Flowline |
| Gutter Slope Method | Specifies method of gutter slope input | OutsideLaneSlope / InsideLaneSlope / FixedSlope / UseDepth | FixedSlope |
| Gutter Slope | Specifies fixed gutter slope | Numeric | -2.00% |
| Gutter Slope Direction | Specifies whether the gutter slopes towards the crown or away from the crown | Away From Crown / Towards Crown | Away From Crown |
| Subbase Depth | Depth to subbase at the flange point. Use zero if there is no subbase. | Numeric, positive |
0.5 ft 0.15 m |
| Subbase Extension | Distance the subbase is extended beyond the back-of-curb. Use zero to terminate the subbase at the back-of-curb. | Numeric, positive |
1 ft 0.30 m |
| Subbase Slope Method | Specifies whether to use the Outside Lane superelevation slope for the subbase layer, or to set a numeric % slope value | Outside Lane Slope / Inside Lane Slope / Fixed Slope | Outside Lane Slope |
| Subbase %Slope | % slope of the subbase layer. Not used if Use SE is set to True. | Numeric, positive | 6% |
| Dimension A | Depth of the gutter at the flange point | Numeric, positive, non-zero |
7 in 0.18 m |
| Dimension B | Width from the flange point to the gutter flowline | Numeric, positive, non-zero |
30 in 0.75 m |
| Dimension C | Depth from the flange point to the gutter flowline | Numeric, positive, non-zero |
1 in 0.025 m |
| Dimension D | Height of curb from the gutter flowline to the top-of-curb | Numeric, positive, non-zero |
6 in 0.15 m |
| Dimension E | Width from the gutter flowline to the back-of-curb | Numeric, positive, non-zero |
8 in 0.20 m |
| Dimension F | Width of the top-of-curb | Numeric, positive, non-zero |
6 in 0.15 m |
| Dimension G | Height of the back-of-curb | Numeric, positive, non-zero |
13 in 0.33 m |
| Curb Ramp Tolerance | Sets how far from the alignment the curb ramp target may be considered found. Anything over the distance is considered not found. | Numeric, positive |
75 ft 22 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 |
|---|---|---|
| Gutter Width | May be used to override the gutter width. The following object types can be used as targets for specifying the width: alignments, polylines, feature lines, or survey figures. | Optional |
| Lip Elevation | May be used to override the gutter slope and tie the elevation of the curb lip to the elevation of a profile. The following object types can be used as targets for specifying the elevation: profiles, 3D polylines, feature lines, or survey figures. | Optional |
| Top Of Curb Target | May be used to override the top of curb elevation and tie the elevation of the top of curb to the elevation of a profile. The following object types can be used as targets for specifying the elevation: profiles, 3D polylines, feature lines, or survey figures. | Optional |
Runtime Logical Assignments
None.
Output Parameters
None.
Behavior
The curb and gutter links are inserted based on the Input Parameter dimensions Dimension A - Dimension F. All dimensions must be positive, non-zero values. If a non-zero subbase depth is given, the subbase layer is inserted to the back of curb, and continues for the Subbase Extension width. The subbase layer closes to the bottom-back-of-curb, as shown in the diagram.
If the insertion point is other than back of curb, then the curb height is adjusted by the Top Of Curb Target. The adjustment may not exceed the top of curb height or reduce the curb face below zero. If the top of curb elevation is exceeded the full face of the curb is built. If the top of curb elevation is less than zero, then a zero value is used.
If the insertion point is other than GutterEdge then the gutter width and slope is adjusted if the targets for the gutter edge are present. The gutter slope and elevation targets may need to be non-standard to meet accessibility requirements.
The subassembly builds the shape for a curb and gutter, with the attachment point either at (a) inside edge of the gutter (or lip), or (b) the back of the curb, or (c) the flowline. The face of the curb is given a small, constant width to make it non-vertical.
Layout Mode Operation
In layout mode, this subassembly displays the curb-and-gutter component based on the input parameters given.
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 | Flange | Flange point of the gutter |
| P2 | Flowline_Gutter | Gutter flowline point |
| P3 | TopCurb | Top-of-curb |
| P4 | BackCurb | Back-of-curb |
| L1-L3 | Top, Curb | Finish grade on the curb and gutter |
| L9 | SubBase, Datum | |
| S1 | Curb | Curb-and-gutter concrete area |
| S2 | SubBase |
Coding Diagram
