▁Loop . ▁Street c ars ▁began ▁operating ▁across ▁the ▁newly ▁built ▁T il ik um ▁Cross ing , ▁but ▁without ▁carrying ▁passengers ▁across ▁the ▁bridge ▁during ▁a ▁two - week ▁trans itional ▁" pre - re venue ▁service " ▁phase . ▁The ▁line ▁was ▁formally ▁re - brand ed ▁as ▁the ▁Loop ▁Service ▁on ▁September ▁ 1 2 , ▁ 2 0 1 5 , ▁when ▁T il ik um ▁Cross ing ▁opened ▁to ▁the ▁public ▁and ▁began ▁perm itting ▁street c ars ▁to ▁carry ▁passengers ▁on ▁the ▁route ▁section ▁across ▁the ▁bridge . ▁ ▁Service ▁▁▁ ▁The ▁Loop ▁Service ▁oper ates ▁from ▁ 5 : 3 0 am ▁to ▁ 1 1 : 3 0 pm ▁on ▁week days , ▁from ▁ 7 : 3 0 am ▁to ▁ 1 1 : 3 0 pm ▁on ▁S atur days , ▁and ▁from ▁ 7 : 3 0 am ▁to ▁ 1 0 : 3 0 pm ▁on ▁Sund ays . ▁Head ways ▁in ▁each ▁direction ▁range ▁from ▁ 1 5 ▁minutes ▁between ▁ 1 0 : 0 0 am ▁and ▁ 7 : 0 0 pm ▁on ▁week days ▁and ▁S atur days ▁to ▁ 2 0 ▁minutes ▁for ▁all ▁other ▁times . ▁Tra vel ing ▁a ▁complete ▁loop ▁in ▁either ▁direction ▁takes ▁just ▁under ▁one ▁hour . ▁The ▁Loop ▁Service ▁had ▁a ▁total ▁average ▁rid ership ▁of ▁ 6 , 6 7 6 ▁rid ers ▁on ▁week days ▁in ▁September ▁ 2 0 1 8 . ▁The ▁A ▁Loop ▁carried ▁more