Geneva Convention on Road and Motor Transport
19 September 1949
United Nations World Conference where the ‘Protocol on Road Signs and Signals’ is devised.
These symbols, which Kinneir [and Calvert] could redraw but had to accept in essential respects, were a fundamental constituent of the redesign, and were – together with the new alphabet – a recognition of the facts of modern road transport, and of the need for an internationally intelligible sign system.1
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Kinross, R. Blueprint, 1989 ↩︎