westminster tube station westminster station served circle district jubilee lines circle district lines station embankment jubilee line station located corner bridge street close parliament square close downing street treasury supreme_court station parts sub surface platforms opened company section route deep level platforms opened jubilee line extension variety underground main line services operated sub surface tracks original station completely rebuilt conjunction construction deep level platforms sits station history sub surface station station opened december steam operated district line railway opened section line originally eastern terminus station cutting ended concrete wall timber approach station west runs cut cover tunnel roadway parliament square broad sanctuary tunnel close church care required avoid foundations poor ground found original station building temporary structure positioned tracks platforms sheltered individual roof provided stations access station bridge street pedestrian subway road railway extended connected metropolitan railway later metropolitan line companies rivals company operated trains tracks joint service known february opened northbound branch station connect extension joint railway west london line road date service began running tracks service run terminus broad street demolished west london line road mansion house time eastern terminus august middle circle service began operations running tracks north track demolished link road mansion house service operated jointly june middle circle service shortened terminate december outer circle service withdrawn tracks efforts improve tracks electrified new electric rolling stock brought use station given present westminster station entrance incorporated larger building new entrance canopy designed bridge street entrance designed rendered replacement elevation eastern entrance embankment projects architect main forerunner london station platforms refurbished new wall green blue black white scheme later stations period visible neighbouring park station metropolitan line operated route given identity tube map circle line late early east ends platforms extended allow longer car trains operated involved carefully tunnels original headquarters station completely rebuilt incorporate new deep level platforms jubilee line extended 1990s works level sub surface platforms lowered enable ground level access achieved small carried line closed night deep level station section jubilee line planned 1970s second phase project intended continue line eastwards terminus westminster station planned route need provide transport infrastructure redevelopment east london led route run westminster connect london bridge stations new developments buildings station demolished sub surface station completely reconstructed erection parliamentary office building sits station projects designed construction deep level station involved excavation metre deep void beneath sub surface station house jubilee line platforms void known station box deepest excavation central london carried thick reinforced concrete walls horizontally stability bridge street south station box jubilee line platform tunnels arranged westbound platform eastbound depth station box excavation proximity tunnels represented significant risk stability foundation clock tower popularly known big ben stands metres edge station box protect foundation manage settlement sub soil series metre long steel tubes installed horizontally beneath clock tower metre thick foundation tubes provided control system injected ground compensate settlement detected detailed measurements clock tower position excavation station box tunnels took place injected occasions january september process limited movement clock tower acceptable maximum millimetres injection movement millimetres causing cracking structure tower jubilee line platforms opened december trains running station stopping november station architecture combination concrete steel stacked banks supported cross structures spanning station box routes passengers entering leaving station separated changing lines underground stations extension jubilee line platforms feature platform screen doors improve system increase safety station design won number awards including awards year award award architecture projects jointly short listed prestigious design icon transported design programme activities october months public voting westminster tube station elected favourite transport design icons services station london fare zone district circle lines station park embankment jubilee line train frequencies vary day generally district line trains operate minutes approximately eastbound westbound supplemented circle line trains minutes approximately clockwise jubilee line trains operate minutes approximately eastbound northbound connections routes night routes serve station
Westminster tube station