electric train oslo metro oslo norway double car multiple units built metres long carry passengers seated compartments car maximum speed mph bought owned operated oslo operated line replaced aging teak wagons line units equipped rail overhead wire collectors operate common line line trains prototype new design intended replace aging stock chosen instead perform taken service background operator merged oslo plans place replace old teak cars faster units operate minutes allowing turn time hour time separate pools trains eastern western networks eastern metro units use western network older material 1980s stock rebuilt taken use western network oslo highly satisfied articulated delivered 1980s work started development modified version western suburban lines stock line needed replaced new stock considered limited trial met performance expectations future orders replace stock reached end economical life required specification new train published october october fatal accident occurred old units suffered catastrophic failure braking system rolled line finally person killed seriously injured leading safety inspection old teak cars line units withdrawn service reintroduced initial proposal called units replace stock upgraded metro standard start stock rail support time eastern network rail western network overhead wire upgrade non utilised stock order reduced units construction order placed august high development cost norwegian government saw project potentially establishing new industrial export product electrical components built berlin built man built profiles trains assembled car sets delivered november december official public presentation december units enter regular service april cars numbered unit test run paris convention specifications car aluminum body long high wide wider new trains longer ski boxes outside weight car long tons short tons capacity seated standing passengers driver cabin end car passengers sat compartments forward conventional seating section seating wagon delivered seating forward section car doors cars power giving wheel arrangement traction motors powered car giving speed mph acceleration trains equipped contact shoe current supplied direct current trains connected multiple running trains legacy class prone technical problems reliable older stock soon evident ordered norwegian state railways considering modified version use lines plans soon abandoned possibility considered build modified cars use oslo metro ring line time planned share track mainline rolling stock section need able support parallel section dedicated metro track built instead oslo opted new replacement stock instead design found unsuitable initially planned replaced line remain overhead wires new trains equipped following oslo decision host decided upgrade line metro standard allowing longer car trains proposal line light rail standard oslo rejected units taken service older successor oslo stated spare parts nearly impossible small size series forced high maintenance costs initial orders trains sufficient numbers replace estimated cost units run years nok million alternatively city council recommended purchase new car trains nok million decided scrap wagons years operation wagons sold nok piece recycling company remaining wagons preserved displayed stated cost nok million operation forced owner renting wagons million nok year operation stated reason contract lasted years
OS T2000