A warning sign is a type of sign which indicates a potential hazard, obstacle, or condition requiring special attention. Some are traffic signs that indicate hazards on roads that may not be readily a
Exhibit mostly of warning signs (with some regulatory signs like Do Not Enter) at the Turin Automobile Museum
Pre-standardization British School Zone with metal-cutout generic Warning symbol embellished with red glass reflector-spheres
School zone traffic warning sign in Denmark
A traffic signal ahead sign in France (The light flashes to indicate a red light ahead.)
Traffic signs or road signs are signs erected at the side of or above roads to give instructions or provide information to road users. The earliest signs were simple wooden or stone milestones. Later,
Fingerposts and other road signage in the English village of Sturminster Marshall, near Poole
A route confirmation sign on the Warrego Highway in Queensland, Australia, informing motorists of their distance (in kilometres) from the places listed
Road sign for roundabout leading to highways 1, 2 and 3 in Mariehamn, Åland
Sign in Australia reminding drivers to carry adequate supplies before entering remote areas