kilometer single track railway tunnel hell norway line blasting started tunnel opened august having cost million norwegian nok built tunnel shortened travel time south minutes increased capacity trondheim trains hour direction tunnel stage project reduce travel time trondheim hour tunnel section suitable high speed trains built curves small diameter notwithstanding political debate tight curves possibility double track project involved kilometres new tracks permanent way rock build new apron trondheim airport background tunnel built hell line hill tunnel kilometers long project consists kilometres track tunnel carries single track reducing travel time minutes created distance passing loops trondheim allowing capacity increase trains hour directions combined old right way located sea prone landslides closed addition houses projected enjoy reduced noise pollution closing plan reduce rail travel time trondheim hour politicians suggested tunnel completed want tracks trondheim motorway runs parallel construction construction tunnel drilling blasting planning use tunnel boring machine considered conventional drilling blasting method chosen cheaper faster new section track starts river run curve tunnel entrance entrance built pool pump collect surface water located close quarry point meters tunnel blasting performed directions tunnel interception serve operational hub transport masses airport run old point entry blasting entrance hell works include replacing level crossing builder construction tunnel financed state funding project costing nok million construction undertaken time expanding nearby trondheim airport tunnel build new apron planning tunnel completed end tender construction completed march won construction extract cubic metres rock transported tunnel blast detonated august completing proper time budget injuries revenue train ran tunnel august schedules change twice year time saving incorporated plans include building second track trondheim airport station capacity increase created tunnel allow dedicated airport trains operate trondheim controversy unofficial coordination council consisting representatives county municipality originally stated wanted double track tunnel stated certain double track single tunnel meet european_union regulations delay construction looking matter costs double track higher single track constructing second barrel later new track cost barrel member labour stated council abandoned demand double track tunnel airport expansion tunnel construction coordinated sufficient funding time build tracks tunnel raised criticism line goals build high speed railway plan requires double track trondheim solution tunnel disregarded working plans high speed rail criticized tunnel route having curves tight radius metres allow kilometres hour mph kilometres hour mph tunnel straight allow speeds kilometres hour mph limitations ends tunnel allow trains reach higher maximum speed kilometres hour mph average speed kilometres hour mph able allow high speeds defined parliament minimum kilometres hour mph future high speed line north trondheim stated cause plans build high speed line trondheim complete plans plans tunnel january construction commenced county cabinet fronted conservative stated want tunnel run planned route instead curved line allow high speed line future rejected stated building modern railway future added trains regional trains stop hell high speed curves meaningless
Gevingåsen Tunnel