Intersection Design: Straight Roads Lead to Dead Ends

1
Intersection Design Straight Roads Lead to Dead
Ends
Dana Probert, Civil 3D Diva Extraordinaire Kick
Ass Writing Partner

• The straight road is easy to build in Civil 3D.
  But that typically leads to dead ends. What
  happens when roads run into each other? In this
  quick spin, well look at a cul-de-sac, a knuckle
  and a street intersection, and discuss best
  practice techniques for modeling these common
  design components. This class will cover a bit of
  everything youll run into when creating a
  typical subdivision design. Your solution is
  right around the corner.

2
Corridor Design Components

• Horizontal Alignments
• Center Line
• Curb Returns
• Flowpaths
• Profiles
• Top of Curb
• Flowline
• Edge of Paving
• Assembly
• Typical Section
• Curb Section
• Stretch Section

3
Intersections to be Covered

• Cul-De-Sac
• Four-Way Stop
• Knuckle

4
Cul-De-Sac

• Main Road Design
• Cul-de-Sac Design
• Single Alignment
• Unique Assembly
• Targets

5
Four Way Stop

• Main Road Design
• Null Regions
• Baselines
• Alignment Direction
• Regions
• Split vs. Insert

6
Residential Knuckle

• Main Road Design
• Assembly
• Small Subassembly
• Baselines
• Edge of Paving
• Offset Targets
• EOP, Not TC

7
Summary

• Three Components To Describe Everything
• Use Targets, Regions, and Subs as Needed
• Eating an Elephant!

8
Questions?
Thank You! Please remember to fill out
evaluations.