FHWA Series BC 2021 Font
by Barry Stock Fonts

13 font family styles
minus10 Style

minus20 Style

minus30 Style

minus40 Style

minus50 Style

minus100 Style

plus0 Style

plus10 Style

plus20 Style

plus30 Style

plus40 Style

plus50 Style

plus100 Style

About FHWA Series BC 2021 Font
Series BC is an interpolated font between B and C and not an official FHWA typeface.
They have been designed on a 10,000 Em square in order to accurately fit the width of words to a 1/1000" spec. based on the tables in the Standard Highway Signs manual, when set at 504 points (5.6" height) in Adobe Illustrator. Words can be scaled up or down to the specified letter height and maintain a high degree of width accuracy.
Additional letter spacing for signs in the US is determined by percentage, and not in the manner used by software ("tracking"). Separate fonts are provided for spacing up to 50% positive or negative, and the -100 and plus 100 fonts can be used to blend with a +50 or -50 word to obtain 60, 70, 80% above or below.
No kerning tables are provided, because no kerning is (officially) used in the production of street signs in the US.
I hope these come in handy for those in the industry and for those who find highway signage fascinating.