Abstract: A traffic delineator includes a barrel and a base. Wheels are mounted to the delineator to permit rolling of the delineator. The barrel has a domed top for added strength. When removed from the base, the barrel may be stacked by nesting another barrel into the cavity of the first barrel. The barrel includes a handle. Traffic warning lights and flags may be affixed to the barrel. Removable ballast may be held by, contained in, or used on, the base.