Safety signs — or danger symbols, warning signs, warning symbols — as referred to in different parts of the world — are labels, letters, and symbols that indicate priorities to be taken to ensure attention, care, danger, safety, and t. D. regarding life and personal belongings. They are specifically notified in public places to increase people's awareness of the dangers and dangers in certain situations, rather than the rules and how to put themselves at risk.
There are several categories of warning or warning signs indicating or warning about obstacles, hazards, risks, etc. To prevent accidents, catastrophes and environmental hazards that affect the general population.
A traffic sign is a type of warning signal indicating a danger or danger on the way ahead that is not easily or easily visible to the driver. In many countries, these signs are usually formed in an equilateral triangle with a thick red frame on a white background; Background colors and borders vary from country to country.
Road signs usually contain a symbol or a combination of words and symbols. The European Transport Signage is based on the UNECE Vienna Convention on Road Signs and Signals; in the USA, the MUTCD standard is respected, and it often contains only words or text.
The earliest signs of roads or miles, as they were called, provide only distances between places. Among the early safety warnings that appeared around the mid-1960s were warnings of horse-drawn carriages and vehicles carved in stone; Alfama district in Lisbon was one of the first to receive them. But primitive signs did not have access to high-contrast inscriptions and symbols and were most often ignored.
Safety signs or warning signs are used in many areas of social interaction: road and road signs, general caution, obstacles, animal crossing, road works, tunnels, bridges, construction works, the presence of harmful substances such as chemicals, etc.
Traffic signs
With the advent of cars in 1900, the first safety signs or warnings were recorded in West London. By 1910, nine European countries had settled on a common symbol, using images to indicate roads, to indicate bumps, curves, intersections, and railroad crossings. Over the next several decades, intensive work on the research and development of signage, dedicated to the development of the European system of road signs. By the end of the century, when vehicle volumes and traffic increased, and night traffic made significant progress, flat painted signs were able to sign with embossed inscriptions, and then glow signs and reflectors, so that drivers could see signs at night.
In modern times, safety signs and warnings have different colors and shapes to indicate the category of danger or danger.
• General caution - usually a diamond shape with an exclamation mark in the middle serves as a general warning or caution; explanatory language and pictograms.
• On roads, streets, highways and in public places there are obstacles or slow areas - rectangular or diamond-shaped signs with reflectors pointing to barricades, bridge abutments, turns, curves and corners, bends, partitions, pillars, tunnels in front, crossing levels, school areas, hospitals, pedestrian crossings, etc.
• Animals crossing highways — signs of wild animals at highways crossing a forest scrub, dense jungle, or where individual animals live in large populations serve as warning messages to move slowly to avoid an animal. Conventional animal trains — alligators, bears, camels, deer, elk, kangaroos, polar bears, deer, wallabies, etc. D. Sometimes large farms or ranches put signs to look for cows, ducks, horses, and sheep so that they do not fall or transported by truck or passing vehicle.
• Road works or construction are temporary signs indicating building construction, road maintenance, temporary obstruction, such as flooding, road surface, poor road conditions, loose soil, fresh roads and many others and often accompanied by speed limits. The colors of these signs vary from country to country, from white to bright yellow, orange, red and blue.
