Abstract: Apparatus is provided for applying a sealing composition to a road surface. The apparatus includes supply means for the sealing composition and an applicator having a pressure chamber having adjustable-gap exit openings adjacent the road surface and having doctor blades which, when appropriately set, apply the composition to the road surface to a uniform and preset thickness across the width of the applicator. The apparatus includes means for propelling the applicator over a road surface.

Abstract: A highway barricade which has an appearance similar to that of a large steel drum is formed of an organic polymer. The sidewalls of the barricade are slightly tapered to permit the nesting together of a plurality of similar units, and the base portion thereof is provided with weighting means to permit it to withstand normal forces encountered in highway situations. Visibility of the device is enhanced by incorporating fluorescent, phosphorescent and/or reflective materials in the polymer; by providing faceted surfaces; and/or by locating a light source inside a translucent barricade.