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

  1. Kinross, R. Blueprint, 1989 ↩︎