a stackable , portable , vehicle traffic barricade having a molded elongated body with a generally extruded triangular shape having a longitudinal axis ; a base ; a top ; a first pair of opposing sides disposed between the top and the base ; a second pair of arcuate opposing sides disposed between the top and the base ; a plurality of vertically disposed fillable cavities disposed through the top of the body ; and a plurality of caps , where each of the caps has a cross sectional shape suitable for functionally engaging a corresponding cavity .