The design of Overpass is an interpretation of the rather well-known “Highway Gothic” letter­forms from the Standard Alphabets for Traffic Control Devices published by the U.S. Federal Highway Administration. Starting from those specifications, critical adjustments were made to the letterforms to create an optimal presentation at smaller sizes onscreen and later for display sizes—especially in the lighter weights.

Overpass Mono is a thoughtful, fixed pitch re­imagin­ing of the Overpass proportional design. Con­sist­ing of four weights ranging from Light to Bold, each monospace weight matches the weight of their counterparts in the proportional family. The Overpass Mono fonts are finely tuned to meet the requirements of today’s programmers.