London’s Design Museum has an exhibition of the work of typographer, Margaret Calvert. You can read about the exhibition, here

https://www.theguardian.com/artanddesign/2020/oct/23/doyenne-of-design-how-margaret-calvert

Margaret Calvert, with Jock Kinneir, designed the typeface for motorway signage and also the the sign system for Britain’s railway network. This has been recently digitised across a range of weights and sizes.

If you are interested in the acceleration effects on design for the modern world, begin here