ors ▁including ▁the ▁Canadian ▁Pacific ▁Railway ▁has ▁proposed ▁a ▁new ▁larger ▁rail ▁tunnel ▁to ▁accommod ate ▁large ▁double ▁stack ed ▁fre ight ▁cars ▁under ▁the ▁Detroit ▁River ▁which ▁could ▁open ▁in ▁ 2 0 1 5 . ▁With ▁the ▁new ▁tunnel ▁potentially ▁emer ging ▁near ▁the ▁Michigan ▁Central ▁Station , ▁a ▁re develop ed ▁station ▁could ▁play ▁a ▁role ▁as ▁a ▁trade ▁ins pection ▁facility . ▁ ▁Tour ism ▁Tour ism ▁in ▁metropol itan ▁Detroit ▁is ▁an ▁important ▁economic ▁factor , ▁compr ising ▁nine ▁percent ▁of ▁the ▁area ' s ▁two ▁million ▁jobs . ▁About ▁ 1 5 . 9 ▁million ▁people ▁visit ▁the ▁area ▁ann ually ▁sp ending ▁an ▁estimated ▁$ 4 . 8 ▁B . ▁ ▁Besides ▁cas ino ▁g aming , ▁the ▁region ' s ▁leading ▁att raction ▁is ▁The ▁Henry ▁Ford , ▁America ' s ▁largest ▁ind oor - out door ▁museum ▁complex . ▁The ▁Detroit ▁International ▁River front ▁links ▁the ▁Renaissance ▁Center ▁to ▁a ▁series ▁of ▁ven ues , ▁par ks , ▁restaur ants , ▁and ▁hot els ▁by ▁a ▁river front ▁walk way . ▁ ▁The ▁region ▁hosts ▁large ▁multi - day ▁events ▁with ▁crow ds ▁of ▁hundreds ▁of ▁thousands ▁to ▁over ▁three ▁million ▁people ▁for ▁annual ▁events ▁such ▁as ▁the ▁W inds or - Det roit ▁International ▁Fre edom ▁Festival , ▁the ▁North ▁American ▁International ▁Auto ▁Show , ▁and ▁the ▁Mot own ▁Winter ▁Bl ast ▁on ▁Camp us ▁Mart ius ▁Park . ▁The ▁city ' s ▁Mid town ▁and ▁New ▁Center ▁areas ▁anch ored ▁by ▁Wayne