On what specific date did the very first zebra crossings come into official use in the UK?

Answer

October 31, 1951

The official introduction of the new striped crossing system in the UK, marking a significant change in urban traffic management, took place on Halloween, October 31, 1951.

On what specific date did the very first zebra crossings come into official use in the UK?
inventordesigntraffic controlroad safetyzebra crossing