class class electric multiple unit norway sixteen car train sets built units capable mph connecting stations norway high speed railway car configuration units weigh tonnes long tons short tons metres long power output units similar class related swedish units units expanded fourth car specifications unit based swedish designed 1980s delivered swedish state railways use high speed trains technology involved similar like spot steel car bodies class differs ways unit separate locomotive unit motors spread train powered car car bodies totally different layout including doors instead end cars addition trains pressure tight increase comfort passengers passing tunnels hydraulic ends hidden covers class shorter cars technology installed exterior design especially nose different later took order units class identical cars technology class order centred body train power output unusually high power weight ratio trains maximum speed units use standard norwegian voltage units run multiple creating car car upgrade trains trains normally operate single double units limiting length cars end cars weigh long tons short tons center cars weigh long tons short tons located center car unit seats built seating sixteen units cost nok billion construction weight increased tonnes reduce tonnes original idea step free access discontinued instead wheelchair lift installed proved work area doors step free platform trains steps taken reach seating area people criticized ordering identical additional cars ease access disabled class capable speeds mph compared mph original speed chosen possible oslo airport minutes signalling system built adopted car units car units separated railway workshop native car configuration history parliament norway decided build oslo airport october decided build high speed airport rail link airport railway built operated subsidiary norwegian state railways operate railway needed sixteen electric multiple units addition tests sweden tried line march order units placed february received bids later merged train division train rented test performance norwegian railway system short period service line class unit delivered september january unit delivered mechanism test performance norwegian railways similarities class class seen winter challenging line years mechanism removed announced ordered fourth car units increased capacity unit seats allows company manage annual growth passengers delivery fourth cars started built bought rebuilding scheduled completed rebuilding created challenges components class longer available significant components car body built based abandoned production lines original manufacturers interior defunct operates center training consists mock ups class driver cab school train existing train drivers exceptional circumstances built cost nok million incidents sister trains service prone technical failures operate year old infrastructure cross mountain services class operating conditions thanks better infrastructure prone malfunction incident ground class trains occurred june class train operated station owing stress service day series wait month returning service january class unit taken service smoke stressed bearing causing replacement units days deaths taken place route accident employee killed impact train authorities stated cause train operating kilometres hour mph instead temporarily reduced limit kilometres hour mph company fined informing driver speed limit reduction deaths line classified accident statistics cause delays services hours incidents place experienced trains caused engineer falling asleep train passing red light accidents occurred installed
GMB Class 71