In NUMBER@1 an extension was added , curving north from Union station , below LOCATION@1 to near LOCATION@2 , where it turned west to terminate at LOCATION@3 and LOCATION@4 .

In NUMBER@1 another part was added , that went north from Union station , below LOCATION@1 to near LOCATION@2 , where it turned west to end at LOCATION@3 and LOCATION@4 .
