The rapid development of the road network in the UK during the 1950s, 60s and 70s is well documented. Not only did the approach to roadbuilding change; the science of highway and traffic engineering became much more sophisticated too.
The development of modern road signs in the early 1960s is well documented; what's not so well known is that the same period saw innovation and experimentation with the relatively new idea of changeable signs.
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- Taking control
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- Development of "secret" traffic signs and technologies; research into systems in use in Italy, USA and elsewhere: MT 126/53.
- Sign trials on M5 in Worcestershire: MT 95/668, MT 96/670.
- "Motorwarn" trials and installation: MT 95/924.
- Development of NCMS, M1 trials and MS1 signals: Ron Bridle, Peter Baldwin, John Porter, Robert Baldwin (ed.). 2002. "The Motorway Achievement: Frontiers of Knowledge and Practice". ICE Publishing.
With thanks to John O'Connell for information on this page.