Calculate Superelevation - Carriageway Type Page

Use this page of the wizard to specify the carriageway type.

Pivot Method

Specify the default Pivot Method, which specifies the axis about which the corridor is superelevated.

Center Baseline: Specifies that the superelevated corridor pivots about the assembly baseline.
Inside of Curve: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly that is closest to the inside of the curve.
Outside of Curve: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly that is closest to the outside of the curve.
Left Side: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly on the left side of the assembly.
Right Side: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly on the right side of the assembly.

Pivot Method

Specify the default Pivot Method, which specifies the axis about which the corridor is superelevated.

Center Baseline: Specifies that the superelevated corridor pivots about the center of the lane.
Inside of Curve: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly that is closest to the inside of the curve.
Outside of Curve: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly that is closest to the outside of the curve.
Left Side: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly on the left side of the assembly.
Right Side: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly on the right side of the assembly.

High Side Location

Specify the default Highside Location for planar roads.

Left Edge: Specifies that the high side of the carriageway is on the left edge on straight (unsuperelevated) sections when the corridor type is Undivided and the Cross Section Shape is planar.
Level: The carriageway is level (0% slope) on straight sections.
Right Edge: Specifies that the high side of the carriageway is on the right edge on straight (unsuperelevated) sections, when the corridor type is Undivided and the Cross Section Shape is planar.

Pivot Method

Specify the default Pivot Method, which specifies the axis about which the corridor is superelevated.

Centers: Specifies that the superelevated corridor pivots about the crown.
Inside of Curve: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly that is closest to the inside of the curve.
Outside of Curve: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly that is closest to the outside of the curve.
Left Side: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly on the left side of the assembly.
Right Side: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly on the right side of the assembly.
Central Reserve Edges: Specifies that the superelevated corridor pivots about the edges of the central reserve.
Baseline: Specifies that the superelevated corridor pivots about the baseline, and the axis of rotation calculation is not performed.. Axis of rotation behavior is determined by the way that the assembly is constructed.

Central Reserve Treatment

Specify whether the central reserve maintains its shape or distorts as the corridor superelevates.

Maintain Central Reserve Shape: The central reserve may be raised or lowered as the corridor superelevates, but the central reserve geometry does not change.
Distorted Central Reserve: The width of the central reserve remains the same, but either side can be raised or lowered as the road superelevates, which vertically distorts the central reserve shape.

Note: When the Pivot Method is set to either Centers or Central Reserve Edges, the Central Reserve Treatment must be Maintain Central Reserve Shape.

Pivot Method

Specify the default Pivot Method, which specifies the axis about which the corridor is superelevated.

Inside of Curve: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly that is closest to the inside of the curve.
Outside of Curve: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly that is closest to the outside of the curve.
Left Side: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly on the left side of the assembly.
Right Side: Specifies that the superelevated corridor pivots about the edge of pavement of the subassembly on the right side of the assembly.
Central Reserve Edges: Specifies that the superelevated corridor pivots about the edges of the central reserve.
Baseline: Specifies that the superelevated corridor pivots about the baseline, and the axis of rotation calculation is not performed.. Axis of rotation behavior is determined by the way that the assembly is constructed.

Central Reserve Treatment

Specify whether the central reserve maintains its shape or distorts as the corridor superelevates.

Maintain Central Reserve Shape: The central reserve may be raised or lowered as the corridor superelevates, but the central reserve geometry does not change.
Distorted Central Reserve: The width of the central reserve remains the same, but either side can be raised or lowered as the road superelevates, which vertically distorts the central reserve shape.

Note: When the Pivot Method is set to Central Reserve Edges, the Central Reserve Treatment must be Maintain Central Reserve Shape.