A "Cul de Sac" is a street or road that is closed at one end, creating a dead end. This design is often used in residential areas to limit traffic flow and enhance safety for residents, particularly children. The layout encourages a quieter environment, as there is no through traffic. Cul de sacs can foster a sense of community among neighbors, as they often lead to more interaction and socialization. They are commonly found in suburban developments and are sometimes associated with the planning principles of New Urbanism, which emphasizes walkable neighborhoods and community engagement.