<P> For years since its opening, the station regularly suffered from overcrowding and had a very narrow island platform (barely 12 feet (3.7 m) in width), which constituted a major safety issue and caused justified fear among passengers . Consequently, the station was comprehensively rebuilt in the early 1990s . A new section of tunnel was excavated for a new northbound platform, and the southbound platform was rebuilt to completely occupy the original 30 - foot tunnel, leaving it wider than most deep - level platforms on the system . The lifts and the ground - level building were closed and a new station entrance around the corner in Islington High Street was opened on 10 August 1992, along with the new northbound platform; the enlarged southbound platform opened on 17 September 1992 . Because of the distance between the new entrance and the platforms, and their depth, two flights of escalators were required, aligned approximately at a right angle . </P> <P> The station's ticket hall has a sculpture of an Angel by Kevin Boys . </P> <P> Angel is one of the number of stations to have only escalator access to the platforms . With a vertical rise of 27 metres (89 ft) and a length of 60 metres (200 ft), Angel station has the longest escalators on the Underground, and the second longest in the United Kingdom (after one at Heathrow Terminal 5). </P> <P> The station was refurbished (as of 2015) and work began on 2 January 2007 . Additional CCTV cameras and Help Points were installed, bringing the total to 77 cameras in the station and nine Help Points, the latter upgraded with new induction loops to better aid hearing - impaired passengers . In addition, new communications equipment was introduced and damaged signs were replaced with new ones . </P>

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