and other regulations
The origin of standardized British main line rulebooks is covered elsewhere on this website.
The early London Underground railways operated in close conjunction with several main line railways and it is little surprise that the rulebooks they used were heavily influenced by main line practice. It is significant that when main line railways adopted a common standard rulebook in late Victorian times the Underground did the same and a common rulebook continued in use until as late as 1969.
When electric traction appeared on the Underground the initial reaction was to produce an entirely new set of rules. This was short-lived since even the tube lines soon inter-ran with main line railways. In consequence even the electric lines adopted the standard main line rule book (with copious amendments and special provisions).
This web page is about the special circumstances of an underground railway and how their own special rules developed.
In more recent times the development of Underground rules has not been an entirely satisfactory process. A feeling emerged that a rulebook was not detailed enough to guide staff behaviour and the outcome was a working reference manual. This approach had its own complications (not the least of which was size) and in due course a rule book (or rather a set of rule books) was reintroduced. The pendulum having now swung fully the other way the new books are surprising in how much detail they lack.
This solution is also not perfect and the situation is again under review!
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