Engineered for precise traffic management at highway-rail grade crossings, this No Train Horn Sign (W10-9) meets critical DOT and MUTCD state and federal guidelines. Constructed with high-intensity reflective sheeting on durable aluminum, the sign features standard radius corners and 3/8-inch prepunched holes for streamlined installation. Designed for quiet zones established under 49 CFR Part 222 regulations, the sign must be installed in each direction at designated highway-rail crossings. When used with a W10-9P Plaque, the sign supplements the standard Grade Crossing Warning (W10 series) sign, mounted directly below for clear communication to approaching vehicles.