London Underground 1967 Stock London Underground 1967 Stock The London Underground 1967 Stock was a type of deep-level tube stock which operated on the Victoria line of the London Underground from when the line first opened on 1 September 1968 until 30 June 2011. Some of the stock was also used on the Central line between Woodford and Hainault between 21 February 1968 and 1984, as the same automatic train operation (ATO) system was used on both lines. A total of 316 cars (39.5 train sets) were built by Metro-Cammell, and the stock was refurbished at Rosyth. Withdrawn cars of Mk I 1972 stock
London Underground infrastructure were originally maple wood, then aluminium from 1963, and this had been replaced with plastic or rubber following an increase in serious injuries following falls. However, following the King's Cross fire, aluminium treads have been used. There are 426 escalators on the London Underground system and the longest, at , is at Angel. The shortest, at Stratford, gives a vertical rise of . There are 184 lifts across the Underground, with 72 stations having step-free access from street to train. Major efforts have taken place to improve accessibility across the Underground, with the Jubilee line extension having lifts from opening