Typeface Design for Signal
Completing a 1946 French road alphabet that was never finished
Signal is a type family by Production Type, rooted in Caractères — the standardized alphabet used on French road signs since 1946, originally instated by the Ministry of Transport. The original system existed only in four incomplete styles (L1, L2, L4, L5), with no roman lowercase and poor digital versions. Production Type completed and extended it with roman lowercases across four weights, matching italics, multilingual accents, arrows, pictograms, mathematical characters, and a Compressed style. The family targets urban signage, interfaces, and exhibition design.
Set in Signal
Insights
- The original Caractères had no roman lowercase; Signal's core contribution is extrapolating that missing layer across four weights.
- The italic cuts feature unconventional spacing cited as a distinctive element of Signal's typographic color.
- An extra Compressed style described as skewed and excessive was added beyond the historical source material.
- Production Type's engagement with signage typefaces dates to 2003, framing Signal as a long-running research outcome.
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