This was the worst buffer Process_end stop Motion collision on British main line railways , though exceeded Cause_change_of_position_on_a_scale by the Moorgate tragedy on the London Underground .

This was the worst accident Incident involving trains on the London Underground until the Moorgate tube crash Catastrophe in 1975 .

The Moorgate tube crash occurred Presence on 28 February 1975 at 8:46 am on the London Underground 's Northern City Line ; 43 people died Death and 74 were injured Bodily_harm after a train failed to stop at the line 's southern terminus , Moorgate station , and crashed Catastrophe into its end wall .

The Moorgate tube crash occurred Presence on 28 February 1975 at 8:46 am on the London Underground 's Northern City Line ; 43 people died Death and 74 were injured Bodily_harm after a train failed to stop at the line 's southern terminus , Moorgate station , and crashed Catastrophe into its end wall .

This became Becoming known informally as Moorgate protection .

Northern City Line services into Moorgate ended Process_end in October 1975 and British Rail services started Process_start in August 1976 .