This subassembly inserts a paved shoulder with all pavement, base, and subbase layers extended to the shoulder daylight slope.
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 |
|---|---|---|---|
|
Daylight Elevation |
Numeric |
- 1.667 |
|
|
Daylight Offset |
Numeric |
8.377 | |
|
Daylight Slope |
The value of the fixed slope of the daylight link, used if the “hold slope” option is used. |
Numeric, positive |
4 ( : 1) |
|
Side |
Specifes to insert the subassembly either on the right or the left side of the attachment point. |
Left/Right |
Right % |
|
Shoulder Width |
The value of the fixed width of the daylight link, used if the “hold width” option is used. |
Numeric, positive |
8.000 ft |
|
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 |
|
Shoulder % Slope |
Default cross slope of the shape surface. This value is used if superelevation slope is not used, or is not specified for the baseline alignment. |
Numeric |
- 2.0 % |
| 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 the “hold slope” option is used. |
Numeric, positive |
4 ( : 1) |
|
Daylight Width |
The value of the fixed width of the daylight link, used if the “hold width” option is used. |
Numeric, positive |
5.40 ft 1.8 m |
|
Superelevate Subbase |
Specifies to use shoulder superelevation slope to subbase |
No | |
|
Subbase % Slope |
Default cross slope of the shape surface. This value is used if superelevation slope is not used or is not specified for the baseline alignment |
Numeric |
- 2.0 % |
|
Pave 1 Depth |
Thickness of the Pave1 layer (zero to omit) |
Numeric, non-negative |
0.083 ft |
|
Pave 2 Depth |
Thickness of the Pave2 layer (zero to omit) |
Numeric, non-negative |
0.083 ft |
|
Base Depth |
Thickness of the Base layer (zero to omit) |
Numeric, non-negative |
0.0333 ft |
|
Subbase Depth |
Thickness of the Subbase layer (zero to omit) |
Numeric, non-negative |
1.000 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 of Assignment |
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 offset: alignments, polylines, features 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
The finish grade of the shoulder is inserted for the given Shoulder Width and Default Shoulder Slope outward from the attachment point. The subbase link is inserted from the attachment point starting at the Subbase Depth below the finish grade.
The shoulder daylight link can be inserted with either a fixed slope (Hold Daylight Slope = True), or a fixed width (Hold Daylight Slope = False). If a fixed slope is used, the daylight link is extended from the outside edge of the shoulder until it intersects the subbase link. Otherwise, the subbase layer is extended for the Daylight Width beyond the outside edge of the shoulder, and the daylight link is connected to the end of the subbase.
The Pave1, Pave2, and Base surface links are inserted parallel to the finish grade at the given depths until they intersect with the shoulder daylight link.
Layout Mode Operation
In layout mode, this subassembly displays the links comprising the shoulder for a normal crown roadway situation, using default shoulder and subbase cross slope.
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.
|
Type |
Code |
Description |
|---|---|---|
|
P2 |
EPS |
Edge of paved shoulder, finish grade |
|
P4 |
EPS_Pave1 |
Edge of paved shoulder on Pave1 |
|
P6 |
EPS_Pave2 |
Edge of paved shoulder on Pave2 |
|
P8 |
EPS_Base |
Edge of paved shoulder on Base |
|
P10 |
Daylight_Sub |
Subbase daylight point |
|
L1 |
Top, Pave |
Paved finish grade |
|
L3 |
Pave |
Paved finish grade |
|
L4 |
Pave1 |
Top of Pavement2 |
|
L6 |
Pave1 |
Top of Pavement2 |
|
L7 |
Pave2 |
Top of Pavement3 |
|
L9 |
Pave2 |
Top of Pavement3 |
|
L10 |
Base |
Top of the base course |
|
L12 |
Base |
Top of the base course |
|
L13 |
SubBase, Datum |
Bottom of subbase, datum |
|
L14 |
Slope_Link | Top surface formation. L14 is the link connecting P2-P10 or P2-P8 or P2-P6 or P2-P4, depending on which is the lowest link |
|
S1 |
Pave1 |
|
|
S2 |
Pave2 |
|
|
S3 |
Base |
|
|
S4 |
SubBase |
L14 is the new link connecting P2-P10 or P2-P8 or P2-P6 or P2-P4, depending on which is the lowest link.
Coding Diagram
