https://www.thamesandhudson.com/blogs/all-news-features/designing-the-transport-typeface-margaret-calvert-on-the-making-of-britain-s-road-signs
Designing the Transport Typeface: Margaret Calvert on the Making of Br
Margaret Calvert reveals how she designed Transport, the iconic typeface and signage system that transformed Britain’s motorways.
the transportmargaret calverton makingdesigningtypeface
https://typographica.org/category/designer/margaret-calvert/
Margaret Calvert – Typographica
margaret calverttypographica