LnPulvRelBoth

Subassembly used to define pulverize and relay sections allowing for shoulder widening on both sides. Elevation of the attachment point is computed based on the elevation of the target surface between the width of the pulverization allowing for a minimum depth of pulverize.

This subassembly is used to define pulverize and relay sections allowing for shoulder widening on both sides. The horizontal location of the attachment point is indicated by the user, and the subassembly determines the elevation of the crown point by analyzing the Target surface at the Left Side Pulverize Width, the attachment point and Right Side Pulverize Width. The lowest elevation is computed using parameters set for the Pavement slopes and the Pulverize Depth parameter, which is the minimum depth of pulverize, measured down from the target surface. Once this low point has been determined, the bottom of the pulverize surface is defined used the Pavement slope parameters for right and left and the width of pulverize defined for the right and left.

The depth of the relay is computed using the following formula: Pulverize Depth * (Pulverize Width / Relay Width) * Pulverize/Relay Factor. If Left Side Pulverize Width is not equal to Right Side Pulverize Width, then the larger of the two values should be used in the calculation. If Left Side Relay Width is not equal to Right Side Relay Width, then the larger of the two values should be used in the calculation. The top of the relay surface is determined by measuring up from the bottom of the pulverize layer. The bottom of the relay surface is an extension of the bottom of the pulverize layer. Both the top and bottom of the relay surfaces are extended outward a distance defined by the Left Side Relay Width parameter and Right Side Relay Width parameter.

The top of the overlay surface (ie Top of Pavement) is computed by adding the Depth of the Overlay to the elevation at the top of the relay surface at the offsets defined by Lane Width Left and Lane Width Right. The overlay surface is drawn between the attachment point and the offsets defined by Lane Width Left and Lane Width Right, using the SE Slope or one that is user defined.

The cutout section on the left begins at the offset defined by the Left SidePulverize Width parameter. Layers defining the bottom of the first base course layer, second base course layer, and top of the subgrade surface are defined measuring down from the top of the overlay at these offsets. The Depth to Subgrade defines the depth of the bottom of the lowest base course layer. If the Base Depth entered is greater than the Subbase Depth entered, then Subbase Depth is equal to the Base Depth. If the Depth to Subgrade input is less than either the Base Depth or the Subbase Depth, then the Depth to Subgrade will be equal to the greater of the two values.

The cutout area on each side is defined by an essentially vertical link (slight offset from vertical so that surfaces can be created). On the left side, this link starts at the horizontal offset defined by the Left SidePulverize Width parameter on the Target surface and extends down to the top of the subgrade (defined by the Depth to Subgrade Parameter). On the right side, this link starts at the horizontal offset defined by the Right SidePulverize Width parameter on the Target surface and extends down to the top of the subgrade (defined by the Depth to Subgrade Parameter). On the left side, the base course link, subbase course link and top of subgrade link extend from this horizontal position outward to a distanced defined by the Lane Width Left parameter or the Left Side Relay Width parameter, whichever is greater, using the slope parameter defined for the subgrade. On the right side, the base course link, subbase course link and top of subgrade link extend outward to a distanced defined by the Lane Width Right parameter or the Right Side Relay Width parameter, whichever is greater, using the slope parameter defined for the subgrade. On both sides, all base course layers follow the slope of the subgrade. In addition, on each side from the top of the essentially vertical link, links are inserted inward, following the Target Surface, until reaching the attachment point.This allows for a closed shape to be created for the pulverize.

Ultimately on both sides, a link is drawn from the outside edge of the subgrade link to its intersection with the top of relay link, creating closed shapes to allow for quanitification.

This subassembly should be used with the shoulder rehab subassembly to complete the section.

The attachment is at the crown point of the subassembly. Attachment point is typically at the assembly baseline point. Attachment point elevation is computed using Input parameters and the target surface.

In layout mode, this subassembly displays the overlay layer positioned from any convenient point of attachment at a slope of -2%. The subassembly is shown at the given widths and slopes.

Info: All dimensions are in 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.

This section lists the parameters in this subassembly that can be mapped to a target object such as a surface, alignment, or profile object in a drawing. For more information, see Setting and Editing Targets in the AutoCAD Civil 3D User's Guide Help.

Right side mirrors that shown below for each coding diagram.

When Depth to Subgrade = 0.0