To Work With Assemblies That Support Superelevation Axis of Rotation Pivot Points

Use the parameters shown in this topic to use the LaneSuperelevationAOR subassembly to build dual and single planar and crowned carriageway assemblies with axis of rotation pivot points.

For best results, compose each side of the assembly as a separate group.

To build a single planar carriageway assembly with axis of rotation pivot points

To build a single planar carriageway assembly with axis of rotation pivot points, the parameters in the following table must be set as shown for each corresponding LaneSuperelevationAOR subassembly. The other lane subassembly parameters do not affect the axis of rotation pivot points.

Note: The numbers in the first row of the table correspond to the green numbers in the illustration.

	1	2	3	4
Use Superelevation	Left Lane Outside	Left Lane Inside	Right Lane Inside	Right Lane Outside
Slope Direction	Away from Crown	Away from Crown	Away from Crown	Away from Crown
Potential Pivot	Yes	Yes	Yes	Yes
Outside Point Code	Edge of Pavement (EC)	None	None	Edge of Pavement (EC)

Note: The Mirror Subassemblies command does not affect the Use Superelevation, Slope Direction, and Outside Point Code parameters. These parameters must be set manually after a subassembly has been mirrored.

To build a single crowned carriageway assembly with axis of rotation pivot points

To build a single crowned carriageway assembly with axis of rotation pivot points, the parameters in the following table must be set as shown for each corresponding LaneSuperelevationAOR subassembly. The other lane subassembly parameters do not affect the axis of rotation pivot points.

Note: The numbers in the first row of the table correspond to the green numbers in the illustration.

	1	2
Use Superelevation	Left Lane Outside	Right Lane Outside
Slope Direction	Away from Crown	Away from Crown
Potential Pivot	Yes	Yes

Note: The Mirror Subassemblies command affects only the Side parameter of the subassembly. If you mirror the subassembly, you must set the Use Superelevation Slope and Slope Direction parameters manually.

To build a dual planar carriageway assembly with axis of rotation pivot points

To build a dual planar carriageway assembly with axis of rotation pivot points, the parameters in the following table must be set as shown for each corresponding LaneSuperelevationAOR subassembly. The other lane subassembly parameters do not affect the axis of rotation pivot points.

For best results, compose each side of the assembly as a separate group. If the assembly is composed as a single group, the Central Reserve Edges pivot methods is ignored, and the central reserve treatment is determined by the manner in which the assembly is built.

Note: The numbers in the first row of the table correspond to the green numbers in the illustration.

	1	2	3	4
Use Superelevation	Left Lane Outside	Left Lane Inside	Right Lane Inside	Right Lane Outside
Slope Direction	Away from Crown	Away from Crown	Away from Crown	Away from Crown
Potential Pivot	Yes	Yes	Yes	Yes

Note: The Mirror Subassemblies command does not affect the Use Superelevation and Slope Direction parameters. These parameters must be set manually after a subassembly has been mirrored.

To build a dual crowned carriageway assembly built from crown

A dual crowned carriageway assembly with axis of rotation pivot points may be built with the inside lane crossfall direction either towards the crown or away from the crown. In this case, the inside lane crossfall direction is going away from the crown.

Note: To have a valid crown point, exactly two subassemblies in a group must have their point codes specified as Crown at the same offset. If a valid crown point is not found, and Centers is selected as the pivot method, the axis of rotation calculation will not be applied to the group.

For best results, compose each side of the assembly as a separate group. If the assembly is composed as a single group, the Centers and Central Reserve Edges pivot method is ignored, and the central reserve treatment is determined by the manner in which the assembly is built.

The parameters in the following table must be set as shown for each corresponding LaneSuperelevationAOR subassembly. The other lane subassembly parameters do not affect the axis of rotation pivot points.

Note: The numbers in the first row of the table correspond to the green numbers in the illustration.

	1	2	3	4
Use Superelevation	Left Lane Outside	Left Lane Inside	Right Lane Inside	Right Lane Outside
Slope Direction	Away from Crown	Away from Crown	Away from Crown	Away from Crown
Potential Pivot	Yes	Yes	Yes	Yes
Inside Point Code	Crown	Crown	Crown	Crown
Outside Point Code	Edge of Pavement (EC)	Edge of Pavement (EC)	Edge of Pavement (EC)	Edge of Pavement (EC)

Note: The Mirror Subassemblies command does not affect the Use Superelevation, Slope Direction, Inside Point Code, and Outside Point Code parameters. These parameters must be set manually after a subassembly has been mirrored.

To build a dual crowned carriageway assembly built towards crown

A dual crowned carriageway assembly with axis of rotation pivot points may be built with the inside lane crossfall direction either towards the crown or away from the crown. In this case, the inside lane crossfall direction is going towards the crown.

Note: To have a valid crown point, exactly two subassemblies in a group must have their point codes specified as Crown at the same offset. If a valid crown point is not found, and Centers is selected as the pivot method, the axis of rotation calculation will not be applied to the group.

For best results, compose each side of the assembly as a separate group. If the assembly is composed as a single group, the Centers and Central Reserve Edges pivot method is ignored, and the central reserve treatment is determined by the manner in which the assembly is built.

The parameters in the following table must be set as shown for each corresponding LaneSuperelevationAOR subassembly. The other lane subassembly parameters do not affect the axis of rotation pivot points.

Note: The numbers in the first row of the table correspond to the green numbers in the illustration.

	1	2	3	4
Use Superelevation	Left Lane Outside	Left Lane Inside	Right Lane Inside	Right Lane Outside
Slope Direction	Away from Crown	Towards Crown	Towards Crown	Away from Crown
Potential Pivot	Yes	Yes	Yes	Yes
Inside Point Code	Crown	Edge of Pavement (EC)	Edge of Pavement (EC)	Crown
Outside Point Code	Edge of Pavement (EC)	Crown	Crown	Edge of Pavement (EC)

Note: The Mirror Subassemblies command does not affect the Use Superelevation, Slope Direction, Inside Point Code, and Outside Point Code parameters. These parameters must be set manually after a subassembly has been mirrored.