tube station london underground station served victoria line branches northern line directly connects main line station station constructed separate underground stations northern line platforms date station opening fourth northern line platform victoria line platforms constructed 1960s station significantly altered accommodate victoria line plans high speed include proposals modify station provide interchanges new services northern line bank branch station king cross branch warren street victoria line warren street station near square station allowing connections street level circle city metropolitan lines history northern line planning underground station serve station proposed cross railway company planned route run heath street branch main route run street serve stations following parliamentary review proposals change permission granted route branch line permitted far remainder 1890s struggled unsuccessfully raise capital needed fund construction whilst continued develop route proposals parliamentary permission obtained modify route branch extended northwards connect main route south end section main route ends loop omitted taken consortium led american raised necessary money proposal presented parliament extension time process constructing extension angel recently opened terminus street extension plan initially permitted delays parliamentary process meant submitted following year second submission opposed metropolitan railway saw extension competition service plan rejected attempt presented parliament november successful approved construction opening funding obtained carried september december station buildings fitting tunnels commenced extension constructed time newly opened angel station opened station building designed located east street opened june building designed located corner street built initially operated separate stations companies platforms sufficiently close deep level interchange constructed passages stations small ticket office passengers changing lines passage led lifts surfaced main line station entrance main line station able serve sets platforms separate station buildings closed september building remains converted use electrical building demolished enable construction london midland reconstruction extension route constructed tunnels feet inches feet inches diameter smaller feet inches diameter adopted standard deep level tube lines smaller tunnel size restricted capacity trains published bill separate bill published time included plans construct tunnels connect station works proposed bills enable trains company run route effectively combining separate railways reconstruction extension works postponed world war begin platforms tunnels closed reconstruction august reopened april new link london operator main line station announced proposals construct underground station company planned construct new tracks parallel line section constructed single track loop yards long feet inches deep beneath surface station single platform underground station close platforms proposal presented parliament november received royal july proceed loop plan underground station dropped victoria line plans route eventually victoria line date 1940s proposal new underground railway line linking north east london centre included series routes proposed different transport authorities connect places south north north east london connected main line termini victoria route approved future extensions decided later funding construction approved government major reconstruction works undertaken incorporate new victoria line platforms cross platform interchanges provided northern line bank branch route bank unlike platforms separate tunnels platforms bank branch tracks served island platform single large tunnel platforms suffered dangerous peak times provide cross platform interchange new section tunnel constructed northbound bank branch trains diverted new platform south original alignment redundant northbound track bed station tunnel filled form wider southbound platform new victoria line platforms excavated parallel original new bank branch tunnels pair platforms linked served conjunction reconstruction main line station new ticket hall excavated sets replacing lifts provide access intermediate passenger circulation level turn gives access northern line branch platforms sets set serving northbound southbound victoria northern line bank branch platforms interchanges northbound southbound victoria northern bank line platforms lower level avoid need use emergency intermediate interchange level located midway victoria line platforms opened december second section line opened warren street disused passages remain posters 1960s future proposals unlike neighbouring main line termini served circle city metropolitan lines square station served circle city metropolitan lines approximately metres south west plans redevelopment main line station high speed include construction direct connection square proposals include underground station serving integrated existing london underground station services station northern line bank branch station king cross branch warren street victoria line warren street train frequencies vary day generally northern line trains operate minutes approximately northbound southbound victoria line trains operate minutes approximately northbound southbound connections london bus routes night routes serve bus station outside main line station
Euston tube station