What are the signs of color blindness?

Answer Color blindness can be an inconvenience or even a danger to affected individuals. Many people do not realize they are color-blind. While your eye doctor can do a test, you can also look for certain... Read More »

Top Q&A For: What are the signs of color blindness

What color are guide signs?

Green is the background color for road signs that indicate direction, as well as give permission for traffic movement, according to the United States Department of Transportation Federal Highway Ad... Read More »

What is the gas used in neon signs that produces a purple color?

All "neon" lights by definition contain neon, which when electrically charged emits a red-orange glow. Neon lights of other colors, including purple, can be manufactured using tinted glass. Alterna... Read More »

How do gases produce color in neon signs?

Neon signs produce color by running high voltage through a gas---sometimes neon, but often something else. It's the law of conservation of energy at work: Electrical energy goes in, light energy co... Read More »

2003 MUTCD School Signs & Color Requirements?

School area traffic control devices are placed on or near any school property that receives federal funding. The color, placement and size requirements of these devices are regulated by Chapter 7B ... Read More »