Ralf Herrmann on the process of designing and testing his new signage typeface, Wayfinding Sans Pro:
Surely every professional type designer has at least an inkling of how a signage typeface should look: probably it sports a rather clean sans serif design, open counters and a rather large x-height.
But which x-height works best, and why? What is the optimal stroke width? A monocular or binocular g? Should the design be somewhat condensed to permit more information on a sign, or rather should it be relatively wide so that individual letters are more easily differentiated?
Years of research and testing later, independent studies have confirmed that Ralf’s design is significantly more readable than the alternatives.