Yes, interstate signs in the United States are pennant-shaped, specifically for warning signs indicating a no-passing zone. However, the standard interstate highway markers themselves are not pennant-shaped; they are typically shield-shaped with a distinctive design that features a blue and red color scheme. The shield shape is designed for easy recognition and visibility for drivers on the road.
pennant
Interstate highways are identified on signs with a shield-shaped design. This distinctive shield shape makes it easy for drivers to recognize and navigate interstate highways across the United States.
Ohio is the U.S state with a pennant-shaped flag
Signs which denote Interstate Highways are red, white, and blue.
The flag of Nepal is shaped like two triangles, one above the other like a cavalry pennant.
C
means no passing zone
I'd say the one that looks like a triangle.
Yes, stop signs are octagonal in shape.
Interstate highway
The only road in the United States that features metric road signs is Interstate 19 (I-19) in Arizona. This highway runs from Tucson to Nogales, near the Mexico border. What makes I-19 unique is that all its distance and speed signs are in kilometers and kilometers per hour, instead of the standard miles. This change was part of a 1970s federal metrication initiative, though the U.S. never fully adopted the metric system nationwide. If you're someone interested in custom road signs—whether for personal use or business—this is a great example of how signs can be adapted for specific regional needs or standards. For those in Georgia, especially around Warner Robins, companies like Super Custom Sign specialize in custom road signs, highway signs, and custom street signs that match official standards or suit unique branding. supercustomsigns .com/road-traffic-signs/ Whether you're replicating road traffic symbols or need something custom for a property or event, you can easily find services that provide "road signs near me" or get tailored signage from Super Custom Sign in Warner Robins.
Shaped like an X