A Cul-de-Sac represents a terminal road bulb or turning area at the end of a road.
It typically consists of a single alignment defining the bulb geometry and a main road alignment (centerline) that terminates at the bulb’s center.
Definition and Requirements
To be supported by the plugin, cul-de-sacs must comply with the following requirements:
Location: Found at the end of a road or a closed terminal section.
Alignment Definition:
The Cul-de-Sac should be represented by one centerline alignment defining the tangential bulb arc or circular end.
The Main Road Alignment (used as target) must end/start at the center of the cul-de-sac.
Alignment Continuity: The Cul-de-Sac alignment should connect and align or overlap tangentially with its adjacent region, depending on the curb return subassembly used (insertion point: Curb Back or Gutter Edge).
Region: A Cul-de-Sac will have one baseline and region
Region Association:
The Cul-de-Sac Alignment should start and end at the same station of the Main Road Alignment
The same centerline alignment is shared between the adjacent region (as baseline) and the cul-de-sac region (as Target).
Target:
The target must be set to the Main Road Alignment and be curved to the center.
Other supported geometry: Sided Cul-de-Sac
