line norwegian rapid transit line oslo metro norway runs oslo serves neighborhoods northwestern oslo northeastern line served line metro connects city center onwards lowest consisting stations shared served line metro owned operated oslo contract public transport agency line originally light rail opened built cooperation municipality company connected terminus line received connection city center completed extension proper line extended line branch additional extensions line integrated municipal oslo line upgraded rapid transit metro started running city center history establishment construction housing area started established city center years later fund raising started build avenue recession fund raising difficult plans launched subsequently revised time including avenue applied concession build route granted municipal council individuals transferred rights municipality started negotiating rights suburban running arrangement municipality necessary land build bed lay tracks wires operate line remain owned company owned agreement duration years municipality retained right purchase line work extend line city center started completed government approval granted july construction completed november kilometer long line single tracked passing loops stations addition single departures minutes extra departures afternoon rush hour expansion process extending line city center started process delayed times disagreements city company agree classified railway construction started stopped municipality company agree location terminus municipality wanted difficult company build tunnel city center connect suburban east city center construction stopped october following year municipality launched contest best suggestion networks took years select winner allowed municipality company compromise locating terminus permission granted station construction commenced year station tunnel opened tunnel completed decided purchase line time municipality planning start company considered network planned delays caused open caused disagreement companies payment common section owned issue resolved investments drained particularly received massive lawsuit damage adjacent properties issue resolved supreme_court company needed capital start operations municipality offered transfer ownership exchange majority shares company extension 1920s area experienced growth housing proposed municipal council extended government permission granted construction started year extension built single track line taken new owner suggested extending line government permission granted june construction started immediately kilometer extension opened january new line initially profitable kept concession operate buses area world war bus route terminated upgraded july section upgraded double track later moved placed inside tunnel level crossing built intersection completed december branch line connected street extended owner instead wanted line faster route concession granted link construction delayed bridge needed built company ran money construction stopped months line opened june section renamed resulted companies operating agreement tickets sold section revenue went company regardless train operator line operated minutes line extensions proposals extend line neighboring municipality launched construction extension started main problem getting building materials bridge cross local disagreement station located kilometer extension opened december moved line short tunnel center kilometer extension opened december intended named station norwegian state railways network stations permitted block signaling system installed early 1970s wanted extend line onwards willing pay construction costs wanted municipality pay new municipality willing line extended reached existing fleet kilometer extension opened sufficient operate extension municipality interested extending line metro standard ownership line gradually taken municipality oslo shares bought oslo received municipal merger gradually 1970s 1980s integrated including rolling stock tickets uniforms oslo upgraded line half 1970s laying new ties upgrading tracks higher weight purchasing new plans run city center existed late 1940s revised plan proposed extending common tunnel eastwards municipality started working plans eastern city large difference traffic eastern western lines caused plans changed 1960s eastern network equipped rail power supply eastern lines terminated plans continue lines onwards 1970s plans changed largely increase traffic west decrease east march services west including extended station allowed transfer metro upgraded metro standard reopened april closed february upgraded metro standard upgrades meant platforms needed extended meters allow car metro trains exception long cars easily extended later upgrade involved complete renovation tracks old ones replaced new increasing weight kilograms meter overhead wire replaced rail required level crossings replaced track sunk level road requiring meters line rebuilt pedestrian built stations closed kept car length longer served compensate closing moved original position causing heated local debate signaling system replaced automatic train protection metro installation delayed temporary system caused accident people injured upgrade area line served buses bus stops established places cars pass making difficult place stops passengers transferring line normally minutes longer travel time congestion caused delays minutes caused people use cars increased congestion buses significantly lower rail line opened august november opening line connected started served trains including common section city center extended times line route line starts major public transport hub located kilometers site company head offices depots workshops employee residences serves educational institutions larger office complexes line follow tracks line immediately enters short tunnel closed station located kilometers follows located kilometers serves primarily housing area larger cemetery closed located kilometers areas single dwellings built 1910s following arrival line branches continues past closed located kilometers station located kilometers located kilometers residential area dominated apartment blocks 1970s serves station previously terminus extra rush hour trains line runs past closed located kilometers served base station located kilometers terminus extra rush hour trains substantial commercial properties located close golf course line passes located kilometers station located oslo line runs border past closed station located kilometers late 1970s line spur allow ballast stone loaded area single dwellings 1950s located kilometers serves country race course line terminus located kilometers commercial office buildings vicinity station area dominated housing service served line oslo metro continues connects line runs minutes enhanced service giving departures hour late evenings saturday sunday runs minutes lower line served line continues line section twice frequency travel time minutes minutes minutes metro line owned operated oslo contract line crosses entire metro system single fare zone ticket machines available stations system operated proof payment system transfer station transfer station west bound lines transfer buses transfer oslo lines serving line transfer station serves mainline trains west bound mainline trains reached future proposals line extension current municipal master plan calls line extended intersect line possibility service continued line new branch built municipal center extension priority municipal politicians right way secured construction biography oslo isbn
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