You're looking for a PDF copy of the British Standard "BS EN 14199".
British Standards Institution (BSI)
BS EN 14199 is a European Standard that outlines the requirements for pedestrian and cyclist traffic signals. Here's a brief overview: bs en 14199 pdf
20 pages
Pedestrian and cyclist traffic signals - Part 1: Requirements You're looking for a PDF copy of the
2015
If you'd like a summary or an overview of the standard's content, I'd be happy to help! I'd be happy to help!