Roadgeek 2005 Series F by Michael D. Adams is a free geometric sans serif shaped by broad, even strokes and clean road-sign proportions. Rounded letters sit beside firm verticals, with a practical silhouette and little decorative detail.
Highway-themed signage is its most convincing role, drawing directly on the lettering's functional construction. It also suits transport exhibits, map graphics, and automotive branding. Across those settings, the squared structure and generous curves evoke public information systems and engineered wayfinding.