Abstract: An expandable traffic cone that can be opened and expanded to create a barrier or barricade, lessening the number of cones needed for any situation. The expandable traffic cone is split vertically with a first and second half, joined together by clamps, that when undone, allow the first and second half to be separated horizontally to expose a set of pivoting arms that create a barricade when the cone halves are separated. Arm extensions are also provided to expand the width of the barricade.