Accessibility is hard. It’s easy for things to slip through.

Put yourself in the shoes of Logan—a 33-year-old software engineer with red-green colourblindness—rushing for the subway for a conference in an unfamiliar city. They’re glancing about for entrance to the orange line, when they spot this sign (simulating deuteranopia colour-blindness):

Sign for CTA train lines


Carry many pairs of shoes. It makes it easier to find the cracks.

(Thankfully, there’s an updated version of this sign further along. It’s never too late to improve!)

Sign for CTA train lines