Miller Ingenuity focuses on revolutionizing traditional safety solutions for railway workers. Visit our booth to learn more about: ZoneGuard, electronic RWP System: Provides a secondary safety overlay for track workers. Accurate & reliable. ReLok™fastener system: Reusable and vibration-proof! EveRRay ™LED crossing signal lights: Over 125K in the field! The only LED w/a 10-year warranty. Truck Part Kits: Completely customized for your specifications. Large in-stock inventory.