Main Highway Signs Typefaces
This map shows the origin and the different "routes" taken by the two main typefaces used in world signs: the American Highway Gothic, published by the traffic engineer Ted Forbes in 1945 and the British Transport type by Jock Kinneir and Margaret Calvert, published in 1963.
The map takes in consideration not only the original typefaces, but also their derivations (in Italy the official typeface in use is a derived version of Kinneir's Transport).
From this map it appears that Forbes's typeface had more of a worldwide success than Kinneir's, but it also shows that has needed a re-design in more than one country (that led to the Clearview Hwy by Meeker&Associates in the U.S. and the ANWB-Uu by Gerard Unger in Holland).
The map is part of my Master degree thesis (a type design project) in Graphic design.