Rehab Parameters Palette Reference

This palette lets you assign lane inputs and properties to a rehab corridor, edit the rehab input parameters in the properties table, and apply your modifications to the selected rehab corridor region .

If you are creating a new rehab corridor, once you apply your rehab parameters to your rehab corridor, AutoCAD Civil 3D will automatically build the assembly for your rehab corridor, and will automatically assign the appropriate rehab and/or cross slope optimization subassemblies to your rehab corridor regions. If you are editing an existing rehab corridor, any modifications you make to the Rehab Parameters will update the rehab corridor and the the cross section, profile, and plan views, once you click Apply.

Lane Input

Number of Left Lanes

Specifies the number of lanes on the left side of the road.

Number of Right Lanes

Specifies the number of lanes on the right side of the road.

Lane Property

Lane Property

Use the drop-down menu to select a lane and inspect its parameters. You can also navigate between lanes using the left and right arrows .

Lane Parameters

Refer to the appropriate Rehab and Cross Slope Optimization Subassembly Reference for more information about Lane Parameter properties.

Ideal Cross Slope

The desired cross slope (%) for the finished ground profile.

Overlay Slope Options

Specifies user defined overlay slope options. Specifies right and left overlay slope options

Tip: Flapping is a term used to describe how the Corrected Cross Slope for an overlay in a rehab subassembly is calculated. Flapping outcomes are different, relative to the Slope Tolerance and the Slope Difference between existing ground cross slope and ideal cross slope. If the Slope Difference is less than the Slope Tolerance for the subassembly, then the use case is considered 'within tolerance'. If the Slope Difference is greater than the Slope Tolerance for the subassembly, then the use case is considered "without tolerance."

Note: Slope Tolerance is an absolute value. Therefore, for either a Slope Difference of 0.4% or -0.4%, both have an absolute value of 0.4%. If the Slope Tolerance is 0.5%, the 0.4% absolute Slope Difference would be considered within tolerance.

• User Defined With Flapping
  Flapping specifies how the Corrected Cross Slope will be calculated, relative to the slope tolerance for the subassembly

  • Flapping Within Tolerance:

    Corrected Cross Slope will be set as close as possible to the Existing Ground Cross Slope and will also attempt to meet Minimum Level Depth

  • Flapping Without Tolerance:

    Corrected Cross Slope will be set as close as possible to the Existing Ground Cross Slope within Slope Tolerance

• User Defined Without Flapping
  Flapping specifies how the Corrected Cross Slope will be calculated, relative to Slope Tolerance for the subassembly

  • Flapping Within Tolerance:

    Corrected Cross Slope will be set equal to Ideal Cross Slope

  • Flapping Without Tolerance:

    Corrected Cross Slope will be set as close as possible to the Ideal Cross Slope, within Slope Tolerance.

• Outside/Inside Lane Superelevation
  Outside or Inside Lane Superelevation will replace Ideal Cross Slope. Corrected Cross Slope values for the overlay layer will be defined by the superelevation table for the section instead of the Ideal Cross Slope.

  Note: If Outside/Inside Lane Superelevation is chosen but not the alignment for the rehab corridor does not have a superelevation table defined, a warning will appear in the Events viewer, and Ideal Cross Slope will be set to 0.
• Match Slope

  The Corrected Cross Slope is always set equal to Existing Ground Slope

• Use Ideal Cross Slope

  The Corrected Cross Slope Slope is always set equal to Ideal Cross Slope

Inside Edge of Lane Offset

The offset of the start point from the attachment point for calculating existing ground slope.

Inside Edge of Lane Offset Target

The offset of the start point from the attachment point for calculating existing ground slope.

Lane Width

The distance between the inside edge of lane and the outside edge of lane.

Lane Width Target

The object defining the distance between the inside edge of lane and the outside edge of lane. The following object types can be used as targets for specifying this offset: alignments, polylines, feature line, or survey figures.

Design Lane Width same as Existing Lane

• Yes

  Specifies that the design lane width is the same as existing lane width

• No

  Specifies that the design lane width is not the same as existing lane width

  Note: If No is selected, the Inside Edge of Existing Lane and Outside Edge of Existing Lane parameters will not be applied to the subassembly

Inside Edge of Existing Lane Offset

The offset of the inside edge of existing lane from the attachment point.

Inside Edge of Existing Lane Offset Target

The object defining the inside edge of lane sample point offset. This will be used to calculate the existing surface slope. The following object types can be used as targets for specifying this offset: alignments, polylines, feature line, or survey figures.

Outside Edge of Existing Lane Offset

The offset of the outside edge of existing lane from the attachment point.

Outside Edge of Existing Lane Offset Target

The object defining the outside edge of lane sample point offset. This will be used to calculate the existing surface slope. The following object types can be used as targets for specifying this offset: alignments, polylines, feature line, or survey figures.

Rehab Input

Cross Slope Correction

All Lanes Use Same Ideal Cross Slope

• Yes
  The same Ideal Cross Slope value will be applied to all lanes.

  Note: if you select this option, the Ideal Cross Slope Lane Parameter for an existing rehab corridor region will become read-only.
• No

  Assign ideal cross slopes to individual lanes.

Ideal Cross Slope

The desired cross slope (%) for the finished ground profile.

Slope Tolerance

Specifies the maximum change to the existing ground profile cross slope (%) that you want to design for.

Use Superelevation

If you Use Superelevation, Ideal Cross Slope will be defined by the superelevation value for the station, as defined by the superelevation table for the alignment.

Vertical Adjustment

Mill and Level Type

The type of milling and leveling layer.

Overlay Depth

The depth of the overlay layer.

Minimum Level Depth

The minimum depth of the leveling layer.

Minimum Mill Depth

The minimum depth of the milling layer.

Apply

Applies your Rehab Parameters to the selected rehab corridor region and updates the cross section view for the selected station.