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How can the colorblind distinguish between red and green traffic lights?
Wiki User
∙ 15y ago
Despite their obvious placements on top or bottom of a traffic light, traces of orange and blue are added to the red and green lights to aid those with red-green color blindness to distinguish between the two.
This only affects red-green color blind people. The order of the colors never change. Someone who is colorblind knows it is red on top, yellow in the middle, and green on the bottom. Blue is added to a green traffic light and orange added to a red traffic light. Next time you are out and about, look at the traffic lights. I know in Miami some green traffic lights have a distinct blue undertone, but not all of them have this same undertone. You can also do an image search on a search engine to see what I am talking about.
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoWhen the color blind are taught to drive one of the first things they learn is that the top light means stop the middle light means yield and the bottom light means go. This is how they learn think of it like when people who don't know how to read drive, they still know that a stop sign is a stop sign with out reading it and the same with a yield sign. All it is is different types of learning and realization.
Wiki User
∙ 12y agowell, do you mean traffic lights? how they know when its red, green, or orange? well if that's the case, then they probably memorized the places of which the lights come from. if its the top one, then its stop, if its the middle, it means go slower, if its the bottom one, then it means go. but if u mean that how do they see the signs? remember, they are color blind not blind. they can read signs, its just that they cant see some colors. i hope this answers your question.
Wiki User
∙ 13y agoWhile color blindness will sometimes effect the ability for people to see the colors of traffic lights, people with this visual impairment know the positioning of traffic lights and are able to understand which signal is lit when they approach the junction.
Wiki User
∙ 14y agoThey know it because red is always on the top and green is always on the bottom.
they also know it because the libht always has a little blur when it shines.
Wiki User
∙ 11y agoIn color blindness
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What are the disadvantages in traffic lights?
people can be colorblind. When the power goes out so do the traffic lights.
What jobs can a red green colorblind woman not have?
any job that is involved with driving! (because of the traffic lights!)
What is the distance between one traffic light to another?
There is no set distance in between traffic lights.
What are the disadvantages of the traffic lights?
* The disadvantages of traffic lights r * Traffic lights can cause a chaos on the roads.* Also cause a huge traffic
Who controls traffic lights?
No one really controlls the traffic lights. A computer system controls the traffic lights, and no humans are involved with controlling the traffic lights day in and day out. It is all automated these days.
How often do traffic lights burn out?
The new traffic lights are now LED lights and do not ever burn out.
Are traffic lights luminous?
No, because traffic lights are charged, not naturally bright.
What are traffic lights made of?
Traffic lights are made of part metal and part glass.
How many traffic lights are there in the UK?
As of 2011, there were more than 25,000 sets of traffic lights in the UK. There was a 30 percent increase in traffic lights from 2000 to 2008.
What did came first the vehicles or the traffic lights?
Logically, unless there were reasons to control traffic, there would have been no reason to create or install traffic lights. Because "traffic" generally comprises vehicles (motorized or otherwise), the traffic was probably there prior to the lights. Certainly, there were mechanical traffic signals that preceded traffic lights, not to mention traffic officers who once stood at busy intersections to direct traffic on a regular basis.
What are traffic lights used for?
inventor of the traffic light
How are traffic lights controlled?
Some lights have sensors :)
