ives ▁in ▁ 1 9 7 5 . ▁As ▁the ▁last ▁rep airs ▁on ▁the ▁tunnel ▁had ▁only ▁been ▁made ▁in ▁ 1 9 7 2 , ▁railway ▁traffic ▁was ▁not ▁safe ▁due ▁to ▁the ▁existing ▁emer gency ▁state ▁of ▁the ▁tunnel , ▁thus , ▁the ▁speed ▁of ▁the ▁traffic ▁was ▁limited ▁to ▁ 4 0   km / h . ▁In ▁ 2 0 0 2 − 2 0 0 3 ▁the ▁Dan ish ▁company ▁N iras ▁made ▁adjust ments ▁to ▁the ▁feas ibility ▁study , ▁and ▁an ▁application ▁for ▁European ▁Union ▁assistance ▁was ▁made ▁in ▁accord ance ▁with ▁the ▁conclus ions ▁drawn ▁by ▁this ▁company . ▁The ▁tunnel ▁reconst ruction ▁project ▁was ▁launched ▁in ▁ 2 0 0 7 . ▁ ▁The ▁tunnel ▁was ▁re construct ed ▁between ▁ 2 0 0 8 ▁and ▁ 2 0 0 9 . ▁It ▁was ▁closed ▁to ▁rail ▁traffic ▁on ▁ 1 ▁February ▁ 2 0 0 8 ▁and ▁passenger ▁traffic ▁from ▁Vil nius ▁direction ▁through ▁Ka unas ▁was ▁di vert ed ▁from ▁central ▁Ka unas ▁Railway ▁Station ▁to ▁a ▁small ▁station ▁in ▁Pet ra ši ū na i . ▁Rein for ced ▁concrete ▁was ▁installed ▁in ▁its ▁v ault s ▁and ▁walls , ▁its ▁port als ▁were ▁re built , ▁and ▁its ▁d rain age ▁was ▁improved . ▁The ▁reconst ruction ▁also ▁included ▁installing ▁light ing ▁in ▁the ▁tunnel , ▁the ▁provision ▁of ▁smoke ▁and ▁water ▁sens ors ▁along ▁with ▁a ▁fire ▁alarm ▁system ▁connected ▁to ▁the ▁central ▁control ▁unit . ▁The ▁powerful