The Design of a Signage Typeface

Ralf Herrmann, on the design of his signage typeface Wayfinding Sans Pro:

So I set off, driving thousands of miles across Europe to explore the legibility of these signs and typefaces, first hand. Once I even ended up in a holding cell at the border crossing to Norway, because the customs officers just wouldn’t accept that someone would drive all over Europe simply to take photographs of traffic signs.