A customisable version of the London Underground map for people with impaired vision has won best transport app in this month’s UK Mobile and App Design Awards, hosted by design100.
“Colourblind tube map” was created by digital agency 232 Studios – which also won best small studio – working with accessibility specialist Ian Hamilton, also known for his work on accessible video game guidelines (see previous story, this issue).
The app is based on the official tube map – “it took some tough licensing negotiations to allow that”, Hamilton says – and offers combinations of colours and patterns which are easier to read by users with different forms of colourblindness.
Other versions are designed to cater for other vision impairments such as cataracts, loss of contrast sensitivity and myopia, with features including increased contrast; reduced glare; large detailed high-zoom maps; customisable text size; and simple interfaces with no fiddly gestures
The app previously won a Judges’ Award in last December’s Transport for London (TfL) accessible app awards, with the prize money from this helping ensure it could be made available to both Apple and Android users free of charge, Hamilton told E-Access Bulletin.
“The iconic London underground map is relied on by millions of travellers every day, but its white background, small text and low contrast differences in colour can cause problems for people with many different types of impaired vision”, the app’s developers say.
“There is a black and white pattern-based map available, but only as a PDF… [but this] is actually left over from the time before colour printing became cheaply available, it isn’t actually designed for colour-blindness, so the first enhancement was to produce something that was actually tailored to that audience, that combined colour with pattern to create something ideally suited to people who see in a restricted palette.
“Additionally, due to our past experience working on video magnifier software, another use soon became apparent. A pattern based map is free from being constrained by colour choice, meaning those colours can be altered to suit the preferences of people with a wide range of different vision impairments.”
The approach taken to develop the app is an example of the benefits digital technology can bring to all kinds of impairments, the developers say. “The tube map in the station is a physical object that has to compromise to work for as many people as possible, but digital products do not have the same constraints. Interfaces can be customised, the best solution tailored to each individual’s need.”
The same basic principles are also applicable to all map design, they say, and there has been interest in the project from across the cartography community. “Using symbols and pattern as well as colour, or providing high detail imagery that can in turn support a high level of zoom; these are things that are applicable to all maps.”
Other winners of December’s TfL accessible app competition included London’s Nearest Bus, which helps people find what bus stop they are at and when the next bus will arrive; Station Master, which offers detailed train and station access information for tube and overground lines; and Tube Tracker, an app that uses text-to-speech and high colour contrast to ease access to live journey information.