mo roor مرور the /oo/ here like the /oo/ in poor. it is the (source) or noun from the verb مرَّ = (passed by) As name you need it when you need to say (passing or passage) like كنت اشاهد مرور عربات القطار I was watching (the passing) of the train's wagons. it also used with the time passage.. لم انتبه لـ مرور الوقت the English word - traffic is also translated into arabic as مرور اشارات المرور دائرة المرور

it's something like : Traffic light or patrolman or Police patrol in general it's something about "Traffic"