This subassembly creates a cross-sectional representation of a travel lane that is being inserted from the inside edge of pavement towards the crown point.
It uses the Outside Lane superelevation slope value for the corridor model’s baseline alignment. The pavement structure follows the standards described in “Pavement Structure on Paved Sections” in the Autodesk Civil 3D Help.
Attachment
The attachment point is at the inside edge of lane on the finish grade surface. This component can be attached to either the left or right side.
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 |
Specifies which side to place the subassembly |
Left / Right |
Right |
|
Crown Point on Inside |
Specifies that the inside edge of travelway be coded as Crown |
Yes / No |
Yes |
|
Width |
Width of the lane from the offset of the inside edge to the offset of the outside edge |
Numeric, positive |
3.6 m 12.0 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 |
|
Base Depth |
Thickness of the Base layer (zero to omit) |
Numeric, non-negative |
0.100 m 0.333 ft |
|
Subbase Depth |
Thickness of the Subbase layer (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. For more information, see To Specify Corridor Targets.
|
Parameter |
Description |
Status |
|---|---|---|
|
Width |
May be used to override the fixed lane Width value and tie the edge-of-lane to an offset alignment. The following object types can be used as targets for specifying the width: alignments, polylines, feature lines, or survey figures. |
Optional |
|
Crown Elevation |
May be used to override the normal lane slope and tie the outer edge of the travel lane 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 |
Output Parameters
|
Parameter |
Description |
Type |
|---|---|---|
|
SE AOR Unsupported |
This subassembly does not contribute to the calculation of superelevation axis of rotation pivot points. If it is used in a subassembly that is used for an axis of rotation calculation, a
|
1 (True) |
|
Lane Width |
Width slope of the lane |
Numeric |
|
Lane %Slope |
% slope of the lane |
Numeric |
will be displayed in layout. For more information, see
Behavior
The Inside Lane superelevation slope is obtained from the superelevation specifications for the baseline alignment, and the algebraic sign of this value is reversed. If inserting to the left, the Right Outside Lane Slope is obtained and reversed; if inserting to the right, the Left Outside Lane Slope is obtained and reversed. Starting at the attachment point, a finish grade surface and parallel subgrade are inserted using the given width, depth, and the reverse superelevation slope. Vertical links close the shape at either end of the lane.
If an offset horizontal alignment name is assigned to the Width during corridor modeling, the width of the lane will vary to match the offset of the alignment.
Layout Mode Operation
In layout mode, this subassembly displays the finish, base, and subbase links for the given width and depths at a -2% 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.
|
Point, Link, or Shape |
Code |
Description |
|---|---|---|
|
P1 |
ETW |
Inside edge of lane on finish grade |
|
P2 |
Crown |
Outside edge of lane (at the crown point) on finish grade |
|
P3 |
ETW_Pave1 |
Inside edge of lane on Pave1 |
|
P4 |
Crown_Pave1 |
Outside edge of lane on Pave1 |
|
P5 |
ETW_Pave2 |
Inside edge of lane on Pave2 |
|
P6 |
Crown_Pave2 |
Outside edge of lane on Pave2 |
|
P7 |
ETW_Base |
Inside edge of lane on the base layer |
|
P8 |
Crown_Base |
Outside edge of lane on the base layer |
|
P9 |
ETW_Sub |
Inside edge of lane on the subbase layer |
|
P10 |
Crown_Sub |
Outside edge of lane on the subbase layer |
|
L1 |
Top, Pave |
Finish grade surface |
|
L2 |
Pave1 |
|
|
L3 |
Pave2 |
|
|
L4 |
Base |
|
|
L5 |
SubBase Datum |
|
|
S1 |
Pave1 |
|
|
S2 |
Pave2 |
|
|
S3 |
Base |
|
|
S4 |
SubBase |
Coding Diagram
