Rural intersection: create curb return assemblies

Total video time: 7:57

Last updated: 2020-10-26

Info: No matter which way you decide to do your assemblies, whether you do conditional subassemblies or use the more traditional regions method, the curb return fillet assemblies will have to be made separately.

Exercise files: rurl-int-creat-sdrd-asmbly-end-data-c3d16.zip

Start with 12345678\Design\Corridors\Crdr-25-4thAve.dwg

rurl-int-creat-cr-asmbly-01.mp4 3:27

  1. Home > Create Design > Assembly > Create Assembly
  2. Name it Curb Return Fillet
  3. Copy the pavement from the left side
  4. Open the Subassemblies Properties > Parameters tab
    1. Pavement slope > 2.00%
    2. Crown location > Outside

    3. Inside base extension width > 5.00'

Info: This subassembly is going to start at the curb and build back toward the crown; most other assemblies start at the crown. The inside base extension will create a sub base for the curb and gutter.

  1. Tool Palette > Barriers tab > CGBasic
  2. Properties > Parameters
    1. Curb and gutter size > Wi 36"
    2. Wi 36" curb types > D 6" curb sloped
    3. Terrace slope (%) > -4.00%

    4. Select the Assembly

Info: There is a slight overlap of the sub base and curb. That material will be measured along the bottom where they overlap.

  1. Save for next exercise

Exercise files: Continue with previous data set or start with: rurl-int-creat-cr-asmbly-01-end-data-c3d16.zip

Start with 12345678\Design\Corridors\Crdr-25-4thAve.dwg

rurl-int-creat-cr-asmbly-02.mp4 3:35

There may be time that you need to daylight the back of curb. Start by copying the curb and gutter assembly.

  1. Select the new assembly > Properties
  2. Rename Curb Return Fillet Daylight
  3. Tool Palette > General Assemblies tab > LinkProfileControlled
  4. Properties > Parameters
    1. Slope > -4.00:1
    2. Outer Point > Ditch_In
    3. Link > Top,LABELSLP

    Tip: The exact spelling and capitalization is very important for the coding that comes up later.

  1. Tool Palette > Daylight tab > CutFillProfileControlled
  2. Properties > Parameters
    1. Offset to measure recoverable slope from > 1.00'
    2. Recoverable slope > 6.00:1
    3. Clear zone distance > 1.00'
    4. Recoverable fill slope distance > 1.00'
    5. Cut slope > 4.00:1
    6. Fill slope > 4.00:1

  3. Connect the subassembly to the back end of the LinkProfileControlled sub