Roadgeek 2005 Transport Medium by Michael D. Adams is a free road-sign sans serif with sturdy, open lettering. Its broad curves and firm vertical strokes echo functional transport graphics, but the shapes retain subtle irregularity. Angled stroke endings keep the design from looking overly mechanical.
Designers working with motoring, transit, or civic themes can use it for maps, event posters, and transport-themed branding. The familiar highway character also connects readily with route shields, directional arrows, and illustrated road scenes, letting the lettering become part of the signage imagery.