The Al Mashaaer Al Mugaddassah Metro is a metro line in Mecca Saudi Arabia. It was opened on 13 November 2010 in time for the Hajj 1431 between 25 and 29 November. Claimed to have the highest capacity of any metro in the world. it transports pilgrims between holy sites in Mecca Mount Arafat Muzdalifah and Mina to reduce congestion caused by buses and cars during the Hajj.