Speed Limit 55 Sign - Official Road Signage for 55 mph Zones #1778085 (License: Personal Use)

This is a federally standardized regulatory traffic sign per the Manual on Uniform Traffic Control Devices (MUTCD), featuring bold, uppercase sans-serif text with the number “55” prominently displayed below “SPEED LIMIT.” The sign has a white background with a black border and high-contrast black lettering for optimal visibility at speed and in varying light conditions. It is typically mounted on posts or overhead gantries along roadways where the legal maximum speed is 55 mph.

Used on U.S. highways, rural roads, and state routes where the posted speed limit is 55 mph; commonly referenced in driver education, traffic safety materials, municipal signage guides, and transportation policy documentation.