This subassembly inserts a shoulder that you can use to control superelevation. It also supports Pave 2 and Pave 3 Layer extension, as well as varying grade on Datum.
Attachment
The attachment point is at the inside edge of the paved shoulder, which is typically at the outside edge-of-traveled way.
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 |
Specifes to insert the subassembly either on the right or the left side of the attachment point. |
Left / Right | Right |
| Shoulder Width | Width from the attachment point to the shoulder hinge point | Numeric |
2.4 m 8.0 ft |
| Extension Pave 2 | Specifies how far the pave 2 layer extends from the attachment point | Numeric | 0.05 m |
| Extension Pave 3 | Specifies how far the pave 3layer extends from the attachment point | Numeric | 0.10 m |
| Use Superelevation Slope | Specifies to use the slope from the superelevation specification defined on the baseline alignment. |
Selection List:
|
No |
| Shoulder Slope Direction |
Specifies whether the shoulder slopes away from the crown or towards the crown |
Selection List:
|
Away from Crown |
| Default Shoulder Slope | Default slope of the shoulder if a superelevation slope is not specified. | Numeric, Grade | -2.500% |
| Subbase Daylight Type | Select whether to hold the daylight link to a fixed slope with variable width, or hold it to a fixed width with variable slope | Selection list: a) Hold Slope, Adjust Width, b) Hold Width, Adjust Slope | Hold Slope, Adjust Width |
| Daylight Slope | The value of the fixed slope of the daylight link, used if old slope option is used | Numeric, positive | 4 ( : 1) |
| Daylight Width | The value of the fixed width of the daylight link, used if old width option is used | Numeric, positive |
3m 10 ft |
| Pave 1 Width | Width of Pave 1 extension | Numeric, positive | 0 |
| Pave 2 Width | Width of Pave 2 extension | Numeric, positive | 0 |
| Pave Depth | Pave depth (zero to omit) | Numeric, non-negative |
0.025 m 0.083 ft |
| Pave1 Depth | Thickness of the Pave1 layer (zero to omit) | Numeric, non-negative |
0.025 m 0.083 ft |
| Pave2 Depth | Thickness of the Pave2 layer (zero to omit) | Numeric, non-negative |
0.025 m 0.083 ft |
| Pave 3 Depth | Thickness of the Pave3 layer (zero to omit) | Numeric, non-negative |
0.025 m 0.083 ft |
| Base1 Depth | Thickness of the Base1 layer (zero to omit) | Numeric, non-negative |
0.100 m 0.333 ft |
| Base2 Depth | Thickness of the Base2 layer (zero to omit) | Numeric, non-negative |
0.100 m 0.333 ft |
| Base3 Depth | Thickness of the Base3 layer (zero to omit) | Numeric, non-negative |
0.100 m 0.333 ft |
| Subbase1 Depth | Thickness of the Subbase1 layer (zero to omit) | Numeric, non-negative |
0.300 m 1.0 ft |
| Subbase2 Depth | Thickness of the Subbase2 layer (zero to omit) | Numeric, non-negative |
0.300 m 1.0 ft |
| Subbase3 Inner Depth | Thickness of the Subbase3 layer at the attachment point (zero to omit) | Numeric, non-negative |
0.300 m 1.0 ft |
| Subbase3 Outer Depth | Thickness of the Subbase3 layer at the edge of travelway (zero to omit) | Numeric, non-negative |
0.300 m 1.0 ft |
Target Parameters
This section lists the parameters in this subassembly that can be mapped to one or more target objects, such as a surface, alignment, or profile object in a drawing. For more information, see To Specify Corridor Targets.
| Parameter | Type | Status |
|---|---|---|
| Shoulder Width | May be used to override the fixed Shoulder Width and tie the edge-of-shoulder to an offset alignment. The following object types can be used as targets for specifying this: alignments, polylines, feature lines, or survey figures. | Optional |
Output Parameters
| Parameter | Description | Type |
|---|---|---|
| Daylight Slope | Slope of the daylight link | Numeric |
| Daylight Offset | Offset of the subgrade daylight point | Numeric |
| Daylight Elevation | Elevation of the subgrade daylight point | Numeric |
|
Shoulder Width |
Width of the paved shoulder |
Numeric |
| Shoulder Slope |
Slope of the paved shoulder |
Numeric |
Behavior
This subassembly is inserted on the side of the attachment point specified. All links follow the slope specified for the top link L1, with the exception of L10. Link L10 is determined by the Subbase 3 Inner Depth and Super Elevation/Grade on Link L1, if a User specified Grade is not given for L10.
Layout Mode Operation
In layout mode, this subassembly displays the links comprising the shoulder for a normal crowned roadway situation. If numeric slope values are given for the Shoulder % Slope and Subbase % Slope, the links are shown at the given slope values. Otherwise the default slopes of -2.50% are used.
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 | Codes | Description |
|---|---|---|
| P1 | ETW | Edg- of-traveledway on top surface |
| P2 | Hinge | |
| P11 | EPS_Pave2 | Edge of Pave shoulder on Pave2 |
| P13 | EPS_Pave3 | Edge of Pave shoulder on Pave3 |
| P3 | EPS_Base1 | Edge of Paved shoulder on Base1 |
| P4 | EPS_Base2 | Edge of Paved shoulder on Base2 |
| P5 | EPS_Base3 | Edge of Paved shoulder on Base3 |
| P6 | EPS_SubBase1 | Edge of Paved shoulder on SubBase1 |
| P7 | EPS_SubBase2 | Edge of Paved shoulder on SubBase2 |
| P8 | EPS_SubBase3 | Edge of Paved shoulder on SubBase3 |
| P9 | Daylight_Sub | Subbase daylight point |
| L1 | Top, SR | Finished grade surface |
| L2 | Pave2 | |
| L3 | Pave3 | |
| L4 | Base1 | |
| L5 | Base2 | |
| L6 | Base3 | |
| L7 | Subbase1 | |
| L8 | Subbase2 | |
| L9 | Subbase3 | |
| L10 | Datum | |
| L11-L17 | Slope_Link | |
| S1 | SR | |
| S2 | Pave2 | |
| S3 | Pave3 | |
| S4 | Base1 | |
| S5 | Base2 | |
| S6 | Base3 | |
| S7 | Subbase1 | |
| S8 | Subbase2 | |
| S9 | Subbase3 |
Coding Diagram
