class class norwegian type class electric multiple units built norwegian state railways car trains modifications class based series consists trains delivered bergen service branded series consists regional trains delivered line regional trains originally agenda concept trains power output kilowatts maximum speed mph overall length meters capacity seated passengers series series trains mechanism allowing faster travel curves trains delivered late service given parts safety regulation june train station axle broke class grounded month investigation showed design errors lack proper inspection testing service allowed use mechanism allowed run faster predecessors construction reinforced mechanism enabled higher speeds train questions raised trains ability operate snow accident report showed trains axle load able cope heavy snow conditions locomotives running line severe conditions hit normal train secure connections carriages june units destroyed train ran fire snow tunnel station specifications class car electric multiple unit built car train powered total power output trains active allows speeds percent higher conventional trains curves conventional lines maximum permitted speed mph car train meters long series weighs tonnes long tons short tons series unit weighs tonnes long tons short tons trains steel body entire cabin rail brakes installed carrying series capacity seated passengers series room difference series having smaller compact seating series cars seating different color blue car green red yellow leather area originally cars floors carpet fourth car vinyl consideration people removed difficult clean seating classes standard originally plus car leather seating power supply cars cherry tree wood interior trains equipped dining section car warm meals served seat menu according time day morning larger meals afternoon evening trains feature family section play area area car car bicycle room driver cab trains equipped free wireless internet history background published reports future rail transport norway reports concluded invested billion norwegian nok new infrastructure main corridors built high speed railways instead use technology proposed allow higher speeds existing lines parliament norway voted build oslo airport connect capital high speed line decided service minutes minute issuing specified time limit criterion reason line kilometers hour mph proposals purchase units swedish state railways cooperation use trains norway sweden denmark idea abandoned launched plans build kilometers high speed railways plans shelved hired director general scrapped plans build new railways instead decided focus technology class based built swedish state railways introduced built steel units delivered considered locomotive carriages including driving trailer locomotives power output speed mph compared class upgraded construction motors multiple cars instead having locomotive unit forces car configuration allows better traction better use space weight placing technical equipment cars test ran train line september december ran unit regular service line february signed contract purchase class trains use airport express train line contract included options trains traffic trains regional traffic reason type train airport express train reduce maintenance operation costs having unified fleet options modify trains slightly primarily designed airport service technology secondary design process option taken march differences class different interior instead cars different door design removal set doors car addition time ordering announced trains enter service line summer fall fall class delivered units delivered technology test subsequently removed batch trains cost nok billion april launched new branding scheme trains addition local trains agenda regional trains signature concept introduced trains class services consist classes comfort comfort plus abolished branding having red trains introduced blue silver class trains new service fewer stops faster travel times advantage faster speeds needed upgrades track overhead wires signaling nok billion tickets service cost nok conventional trains continue run tickets available ticket reservation system norway previously prices differentiated prices oslo varying nok depending time travel class stated hoped compete cities travel time city center center plane entry service days scheduled services start permission use trains granted series safety concerns including follow safety terms wheels lack documentation crew training denying request fewer maintenance trains lack consideration critical events deemed high probability occur low consequence lack safety inspector operations maintenance trains heavy exceed permitted axle load lines warned possible weakness wanted use expert perform necessary tests limited availability expert resulted granting half year delay october minister transport asked directors involved parties meet office following day issue resolved following day gave permission trains taken use despite noting series non safety regulations lacked list train safety regulations lack system automatically monitor speed trains particularly automatic train stop disconnected lack safety training crew lack evacuation analysis lack control marking safety equipment followed weeks stated issues nature previously applied trains critical train delivered october use line november scheduled travel time reduced minutes hours minutes december trains problems working correctly cold weather causing trains lose power hours delayed stated contributing cause previous year mild winter impossible test trains extreme weather half months operation line train minutes late tenth train minutes late trains caused travel sickness employees particularly section stated occurred old trains reports number people affected exaggerated december confirmed option class trains costing nok million use line january trains service oslo trondheim line travel time trondheim oslo hours minutes independent marketing survey customers satisfied customers main train service lower reputation number passengers line fallen percent reason limited capacity weekends previously run trains seats class considerably capacity additional services introduced june introduction delayed infrastructure upgrades completed axle faults june class train station line train traveling slow speed injured happened speed fatal caused fatigue failure axle train class trains immediately grounded investigated maintenance crews train recently axle checked fatigue cracks found june stated insufficient tests kilometer controls class testing allowed resume operation day accident report late august concluded cracks caused caused water sealed protective layer june stated approved trains stated line extreme europe number curves gave increased stress tests approve trains class set equipped technology class weighs class stated controlled axle proper tests fatigue discovered stated tested trains section considered parts line misunderstanding approval said tests considered representative impression approved tests line stated tests trains service stated demand following incident trains maintenance examinations kilometers kilometers exam costing nok stated represented extra cost nok million year contract states trains maintained holds financial responsibility trains systematically need maintenance june cracks found additional units similar cracks occurred trains years operations manufacturer trains sweden steel combined thought cause replacements caused issues june stated april discovered checking axle weakness maintenance procedures despite new examinations reason ignored indicated axle represented weak point unanimously fired ceo board june immediately deputy resigned rejected board proposal acting ceo day assumed responsibility defects guaranteed cover costs report stated examined kilometers mean weekly stated hoped inquiries find way frequent rejected sufficient trains run schedules tight inspection scheme instead agreed new programme involve inspection weeks trains service july trains allowed operate conventional speeds weekly inspection time removed services stated considering purchase trains delivered addition problems issues braking air conditioning systems mid august mechanism disabled trains fault bearing connection body allowed movement millimetres late august problems occurred braking system causing trains automatically brake receiving signals automatic train stop system cause cracks rubber installed trains conventional plastic cover intended protect ice stones delivered thousands trains conventional method cracks trapped water caused crack applied coat paint sole means avoid axle inspector hardly believed ears heard addition stated considered safe operate trains conventional speeds replaced august gave weeks solve axle issues contract revoked mid september press announced agreed class receive steel quality european standard recommendation reason class higher weight planned cause trains operate slowly able reach airport desired minutes class inherited axle quality class order september accepted responsibility axle problems stated replace free charge operation cost nok million october announced replace wheels classes spending nok million brake discs brake shoes month parties continued disagree size compensation nok million separating july replaced inspection supplier class stated cost month taken stated going replace frames class class trains compensation deal bergen series trains delivered trial runs march stated able operate trains speeds previously stated year trains operate speeds conventional trains september trains service oslo bergen following winter trains problems running running sufficiently high speed frost trains forced drive extra slowly causing trains stuck stated tests shown class better able previously main locomotive line class modern january started rebuilding series trains larger baggage compartment largely insufficient space passengers series originally service line brand agenda series planned use line largely commuter service standing passengers company comfortable trains issues wheels resolved stated dissatisfied series series capable working series lack manned dining car meant trains series smaller seating capacity meant regional trains series service line january stated new class offer better comfort reduce railway problems delays caused line maximum speed mph june discontinued brands agenda year adjusted trains look time conventional trains use minute starting december services line extended sweden february class hitting accident raised questions class abilities handle hard snow particular report shown train act lose contact tracks slide snow employee worked route planning stated locomotive hauled train better suitable situations weight located train instead slide said took extra precautions class trains snowfall run snow clearing unit ahead class runs stated consider possibility conventional trains new information shed light situation retain use class trains assured passengers trains capable reputation continue alternative needed stated use locomotives combination carriages carriages time regional rush hour trains oslo need renovation offer facilities required travelers october stated planned withdraw class service use multiple units flexible locomotive hauled trains possible company add remove single carriage multiple units necessary double capacity single unit insufficient originally planned introduced delays upgrades delayed delivery carriages june fire started snow tunnel station station prior warning fire driver saw cab train entered tunnel simultaneously train reached point line fire damaged overhead supply driver immediately applied emergency brake caused train stop meters fire train power possible reverse passengers immediately evacuated personnel acted according regulations injured accident according driver lost power continued tunnel fire beginning stage train consisted class units eventually caught fire damaged repair class trains taken service fall mid life overhaul early dutch railway refurbishment overhaul company announced won contract entire fleet set arrive inspection scheduling works involved evaluation process remainder fleet come spring sets transported rail sweden denmark germany main facility
NSB Class 73