Are you hoping to find a home on a Cul-De-Sac in Ladera Ranch? A Cul-De-Sac is a circular ending to a street that was created to slow traffic in residential neighborhoods. Throughout Ladera Ranch there are a number of traffic slowing designs like roundabouts and cul-de-sacs to keep car speed at safe levels. Buying a home on a cul-de-sac is a great idea if you have kids that will be playing outside. That way you don't have to worry about the danger of fast moving cars.