How the blue/yellow high contrast version helps those with cataracts How those with red-green colour blindness would see the mapsĪ blue/yellow, high contrast version of the map The main map, which is easily readable by both the colour blind and non-colour blind users Here are just some of the examples below: Thus, a black and white tube map scarifies all of the extra readability colour offers, when it doesn’t have to for all colour blind users.įortunately, there’s a free (TFL award winning) app, in both Android and iPhone/iPad versions, that goes well beyond TFL’s own map to help the colour blind and those with certain other visual impairments. So on a tube map the Central (red) and District (green) lines are difficult to distinguish from one another, but the Overground (orange) and the Piccadilly (blue) are still easy to tell apart. ![]() The most common is so called red-green colour blindness. However, TFL’s official solution can be a bit of an overkill as there are different types of colour blindness. Contrast it with the standard colour tube map below and the differences are fairly obvious. It’s just a large print, black and white version of the standard tube map. The map above is Transport for London’s (TFL) official solution for colour blind users. This simply means they have some degree of difficulty perceiving the full colour spectrum under normal lighting conditions. ![]() To put the issue into perspective, roughly 8% of men and 0.5% of women in the UK suffer from some degree of colour blindness. The problem is even more acute for the colour blind among the nearly 17 million tourists who visit London each year, many of whom are using the network for their first time. Well for hundreds of thousands of colour blind Londoners, this is their reality each and every day. ![]() Large print, black & white London Underground map for colour blind customers by TFLĮver think London’s tube map looks confusing? Now imagine trying to use it, but you couldn’t easily distinguish between the colours of each line.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |