This decision holds that an owner, general contractor, and excavation contractor owed the public (and thus the plaintiff-parents of children killed by a construction truck) a duty of care in staging the trucks in the manner approved in the construction permit. The construction permit allowed the contractor to stage only up to 20 construction trucks and all of them on the construction site. Instead, the contractor staged 90 construction trucks at a distant unapproved site from which they drove to the construction site along unapproved routes. The decision finds no public policy reason to exempt the defendants from Civil Code 1714’s general rule of owing a duty of care to prevent physical harm to person or property. While the truck driver’s negligence was the immediate cause of the accident, defendants added to the risk by having the trucks drive a long way along unapproved routes.